fix: add explicit Join button to sidebar add-network form

The form had no submit button so there was no visible way to confirm.
Enter should have worked but was unreliable with two inputs. Added a
disabled-until-valid Join button.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.claude/settings.json

@@ -1,7 +1,9 @@
 {
   "permissions": {
     "allow": [
-      "Bash(go build *)"
+      "Bash(go build *)",
+      "Bash(npx tsc *)",
+      "Bash(npm run *)"
     ]
   }
 }

.gitea/workflows/build.yml

@@ -0,0 +1,81 @@
+name: Build
+
+on:
+  push:
+    tags:
+      - 'v*'
+  workflow_dispatch:
+
+jobs:
+  build:
+    name: Build & release
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-go@v5
+        with:
+          go-version-file: go.mod
+
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '24'
+
+      - name: Install Wails CLI
+        run: go install github.com/wailsapp/wails/v2/cmd/wails@latest
+
+      - name: Install platform dependencies
+        run: |
+          sudo apt-get update -q
+          sudo apt-get install -y \
+            libgtk-3-dev \
+            libwebkit2gtk-4.1-dev \
+            libayatana-appindicator3-dev
+
+      # ── Server binaries (CGO_ENABLED=0, cross-compile freely) ──────────────
+
+      - name: Build server binaries
+        run: |
+          mkdir -p dist
+          build() {
+            local GOOS=$1 GOARCH=$2
+            local SUFFIX="${GOOS}-${GOARCH}"
+            local EXT=""
+            [ "$GOOS" = "windows" ] && EXT=".exe"
+            CGO_ENABLED=0 GOOS=$GOOS GOARCH=$GOARCH \
+              go build -trimpath -ldflags="-s -w" \
+              -o "dist/waste-daemon-${SUFFIX}${EXT}" ./cmd/daemon
+            CGO_ENABLED=0 GOOS=$GOOS GOARCH=$GOARCH \
+              go build -trimpath -ldflags="-s -w" \
+              -o "dist/waste-anchor-${SUFFIX}${EXT}" ./cmd/anchor
+          }
+          build linux  amd64
+          build linux  arm64
+          build darwin amd64
+          build darwin arm64
+          build windows amd64
+
+      # ── Desktop app (Linux amd64, CGo + Wails) ─────────────────────────────
+
+      - name: Build frontend
+        run: |
+          cd web
+          npm install
+          npm run build
+          cp -r dist ../cmd/app/frontend/dist
+
+      - name: Build desktop app
+        run: |
+          cd cmd/app
+          wails build -trimpath -ldflags="-s -w" -tags webkit2_41 -o ../../dist/waste-linux-amd64
+
+      # ── Publish release (tags only) ─────────────────────────────────────────
+
+      - name: Create release
+        if: startsWith(github.ref, 'refs/tags/')
+        uses: https://gitea.com/actions/gitea-release-action@main
+        with:
+          token: ${{ secrets.RELEASE_TOKEN }}
+          files: dist/*
+          prerelease: ${{ contains(github.ref_name, '-') }}

.gitignore

@@ -2,10 +2,12 @@
 setup-anchor.sh
 launch-tui.sh
 *.exe
-# compiled binary names that land in the repo root
+# compiled binaries that land in the repo root
 /anchor
 /waste-anchor
 /waste-daemon
+/waste
+/app
 /relay
 *.identity.json
 /tmp/
@@ -14,4 +16,11 @@ launch-tui.sh
 *.swp
 /tui
 launch-web.sh
+build-web.sh
+build-daemon.sh
+deploy-web.sh
+deploy-daemon.sh
+serve-web.sh
 web/public/config.js
+cmd/app/frontend/dist/*
+!cmd/app/frontend/dist/.gitkeep

EXTENSIONS.md

@@ -0,0 +1,306 @@
+# waste-go Protocol Extensions
+
+These are additive extensions to [YAW/2](PROTOCOL.md) implemented by waste-go.
+They do **not** break compatibility — YAW/2-only peers silently ignore all new
+fields. Where a waste-go peer connects to a YAW/2-only peer, the extension
+simply has no effect on that peer.
+
+---
+
+## EXT-001 — Signed Invites
+
+**Status:** implemented  
+**Affects:** `waste:` invite format, `hello` DataChannel message
+
+### Motivation
+
+The base YAW/2 network model is open to anyone who knows the anchor URL and
+network name (or hash). This extension adds opt-in cryptographic membership
+gating: invites are signed by an existing peer, and peers that enforce
+`RequireInvite` reject hellos that carry no valid signed invite.
+
+### Invite format changes
+
+The `waste:` invite payload (base64-encoded JSON) gains two optional fields:
+
+```json
+{
+  "anchor": "wss://...",
+  "network": "friends",
+  "net": "<64-hex SHA-256(yaw2-net:name)>",
+  "inviter": "<64-hex Ed25519 pubkey of signing peer>",
+  "sig": "<hex Ed25519 signature>"
+}
+```
+
+The signature covers the following bytes (null-separated):
+
+```
+anchor \x00 network \x00 net \x00 inviter
+```
+
+Unsigned invites (`inviter`/`sig` absent) remain valid for backward compat.
+
+### Hello message extension
+
+The YAW/2 §6 hello message gains one optional field:
+
+```json
+{
+  "type": "hello",
+  "id": "<hex pubkey>",
+  "nick": "alice",
+  "caps": ["chat", "file"],
+  "sig": "<DTLS binding sig>",
+  "invite": "waste:eyJ..."
+}
+```
+
+`invite` carries the full `waste:` string the connecting peer used to join.
+YAW/2-only peers ignore this field.
+
+### Enforcement
+
+Per-network flag `RequireInvite` (set via `join_network` IPC command).
+When enabled:
+
+1. A peer that presents no `invite` in hello is disconnected immediately.
+2. A peer that presents an invite with no signature is disconnected.
+3. A peer whose invite signature is invalid is disconnected.
+4. A peer whose invite was signed by an unknown peer ID (not in the store or
+   currently connected) is disconnected.
+
+The inviter's key must be a **known peer** — i.e. previously connected and
+stored in the per-network SQLite store, or currently connected. This forms a
+chain of trust: Alice (founder) invites Bob; Bob's key is now known; Bob can
+invite Carol, whose invite Alice will also accept.
+
+**Default:** off. Networks opt in. Existing networks with no RequireInvite
+behave exactly as before.
+
+---
+
+## EXT-002 — Hash-based Hang Link
+
+**Status:** implemented  
+**Affects:** web UI URL handling only, no wire changes
+
+### Motivation
+
+A shareable URL that pre-fills the join form without conveying cryptographic
+membership. Suitable for public announcements ("come hang out here"). The
+fragment is never sent to the server, keeping the network name opaque to
+server logs and HTTP intermediaries.
+
+### Format
+
+```
+https://host/#waste:eyJ...
+```
+
+The fragment payload is the standard `waste:` base64 JSON with only `network`
+and `anchor` fields — no `inviter`, no `sig`. This does **not** grant
+membership on networks with `RequireInvite` enabled; it only pre-fills the
+join form.
+
+The web UI generates hang links via the 🔗 button in the Networks sidebar
+section. Arriving users see the join form pre-populated and still need a
+proper signed invite (if the network enforces it) to be accepted by peers.
+
+---
+
+## EXT-003 — Multi-Share Configuration
+
+**Status:** implemented  
+**Affects:** IPC protocol only, no peer-to-peer wire changes
+
+### New IPC commands
+
+```jsonc
+{"type":"add_share","path":"/home/alice/Music"}                                // global
+{"type":"add_share","path":"/home/alice/Docs","network_ids":["abc123"]}       // scoped
+{"type":"remove_share","path":"/home/alice/Music"}
+{"type":"list_shares"}
+```
+
+### New IPC event
+
+```jsonc
+{"type":"shares_list","shares":[{"path":"...","networks":["*"]}]}
+```
+
+### Persistence
+
+`shares.json` in the data directory (next to `identity.json`). Each entry:
+
+```json
+{ "path": "/absolute/path", "networks": ["*"] }
+```
+
+`networks: ["*"]` = global (all networks). Specific network IDs = scoped.
+Coexists with the legacy `set_share_dir` single-dir mechanism.
+
+File listings returned by `get_file_list` and `MsgFileListReq` include
+entries from all applicable share roots, with relative `path` fields
+(e.g. `"path": "docs/report.pdf"`).
+
+---
+
+## EXT-004 — TURN Relay (browser mode)
+
+**Status:** implemented (browser mode + daemon mode)  
+**Affects:** ICE server configuration only, no wire changes
+
+The browser adapter reads `WASTE_CONFIG.turnURL` and `WASTE_CONFIG.turnSecret`
+and adds a TURN server to the WebRTC `ICEServers` list. Credentials are
+generated using HMAC-SHA1 of the username (coturn `use-auth-secret` scheme).
+
+YAW/2 §0 explicitly declines TURN ("No relay (TURN)"). This extension is
+opt-in via server configuration and does not affect peers that omit it.
+
+---
+
+## EXT-005 — Per-Network Path in FileEntry
+
+**Status:** implemented  
+**Affects:** `MsgFileListResp` wire message (additive field)
+
+`FileEntry` gains an optional `path` field carrying the file's relative path
+within its share root (e.g. `"docs/report.pdf"`). Peers that don't understand
+this field continue to use `name` for display and download requests.
+
+`MsgFileListReq` / `get` requests use `path` as the lookup key when present,
+falling back to `name` for backward compat with peers that don't send `path`.
+
+---
+
+## EXT-006 — File Transfer Resume
+
+**Status:** implemented (daemon mode)  
+**Affects:** `file-accept` wire message (additive field)
+
+### Motivation
+
+A transfer interrupted mid-stream (peer disconnect, network drop) can be
+continued from where it left off on the next offer of the same file, avoiding
+a full re-download.
+
+### Protocol change
+
+`file-accept` gains one optional field:
+
+```json
+{ "type": "file-accept", "xid": "...", "resume_offset": 65536 }
+```
+
+`resume_offset` is the number of bytes the receiver already has on disk.
+When non-zero, the sender seeks to that byte position before streaming.
+Peers that don't understand this field ignore it and send from the start —
+the receiver detects this by comparing incoming data to expected offset and
+will still verify the final SHA-256, but the partial bytes from the interrupted
+session will be overwritten (YAW/2-only interop degrades gracefully to a full
+re-download, not corruption).
+
+### Receiver behaviour
+
+1. On `file-offer`, the receiver scans its download directory for a `.tmp.meta`
+   sidecar whose `sha256` matches the offer.
+2. If found, the corresponding `.tmp` file's size is the resume offset. This is
+   sent back in `file-accept`.
+3. On DC open, the receiver opens the existing `.tmp` in append mode and
+   re-hashes its existing bytes to restore the SHA-256 state.
+4. On DC close with all bytes received, SHA-256 is verified. Success → sidecar
+   removed, file renamed to final path. Hash mismatch → both files removed.
+5. On DC close with fewer bytes than expected (interrupted again) → both files
+   kept for the next resume attempt.
+
+### Sidecar format
+
+Each in-progress `.tmp` file has a corresponding `.tmp.meta` JSON sidecar:
+
+```json
+{ "name": "archive.zip", "sha256": "abc...", "from": "<peer-id>", "size": 1048576 }
+```
+
+The sidecar is written when the transfer starts and removed on completion or
+corruption. Interrupted transfers keep the sidecar indefinitely.
+
+---
+
+## EXT-007 — P2P Message History Gossip
+
+**Status:** implemented (daemon mode)
+**Affects:** peer-to-peer wire (two new message types); IPC (new event)
+
+### Motivation
+
+When a peer joins a network for the first time (or reconnects after an
+absence), they have no history. This extension lets them request recent
+messages from an existing peer over the already-established encrypted
+DataChannel, without involving the anchor.
+
+### Wire messages
+
+#### `history_request`
+
+Sent by the newly-connected peer to the first peer whose hello is verified.
+One request per room.
+
+```json
+{
+  "type": "history_request",
+  "room":  "general",
+  "since": 1700000000000,
+  "limit": 200
+}
+```
+
+| Field   | Type          | Description |
+|---------|---------------|-------------|
+| `room`  | string        | Room to request history for. |
+| `since` | int64 (ms)    | Only return messages with `ts > since`. 0 = return up to `limit` most recent. |
+| `limit` | int (max 500) | Maximum messages to return. Responder may return fewer. |
+
+#### `history_chunk`
+
+```json
+{
+  "type": "history_chunk",
+  "room": "general",
+  "history": [
+    { "mid": "...", "from": "<peer-id>", "from_alias": "alice", "text": "hello", "ts": 1700000001000 }
+  ],
+  "history_done": true
+}
+```
+
+| Field          | Type   | Description |
+|----------------|--------|-------------|
+| `history`      | array  | Messages, oldest-first. |
+| `history_done` | bool   | Always `true` (single-chunk response). |
+
+### Deduplication
+
+`mid` is the deduplication key. The store uses `INSERT OR IGNORE` on `mid`,
+so receiving a message twice (live or via gossip) is a no-op. Messages
+without a `mid` are assigned one at receive time and are not gossipped.
+
+### Behaviour
+
+- The **receiver** sends one `history_request` per known room immediately
+  after hello verification with the **first** peer it connects to. Requesting
+  only the first peer avoids fan-out amplification.
+- The **responder** queries its SQLite store and replies with a single
+  `history_chunk`. `limit` is capped at 500 server-side. Rate-limited to one
+  request per (peer, room) per 60 seconds.
+- Received history messages are saved to the local store (`INSERT OR IGNORE`)
+  and emitted as `history_loaded` IPC events so the UI can display them.
+
+### IPC event
+
+```json
+{ "type": "history_loaded", "room": "general", "messages": [...] }
+```
+
+Emitted once per room after a `history_chunk` is fully processed. The UI
+should render these messages with a visual separator from live messages.

FUTURE.md

@@ -26,6 +26,11 @@ Target: a web frontend (React or similar) wrapped in a native binary using a Tau
 #### TUI ✅ (shipped)
 A terminal UI (`cmd/tui`) using [Bubble Tea](https://github.com/charmbracelet/bubbletea). Three-pane layout: rooms, messages, peers. Supports group chat, DMs, room switching, invite generation. Works over SSH.
 
+#### Web UI ✅ (shipped)
+React + Vite frontend. Two modes:
+- **Browser mode** — runs entirely in-browser, connects directly to the anchor via WebSocket. No daemon required. Identity persists in `localStorage`. File sharing, file push, per-peer ICE/NAT status.
+- **Daemon mode** — web UI connects to a local daemon over WebSocket IPC. Same UI, different adapter.
+
 ---
 
 ## Protocol
@@ -33,41 +38,63 @@ A terminal UI (`cmd/tui`) using [Bubble Tea](https://github.com/charmbracelet/bu
 ### NAT Traversal ✅ (WebRTC ICE/STUN)
 Solved by using WebRTC DataChannels via pion. ICE gathers host + server-reflexive (STUN) candidates and performs UDP hole punching automatically. The anchor (`cmd/anchor`) doubles as a STUN server on UDP/3478.
 
-The one remaining gap: symmetric-NAT pairs fail without TURN. An optional TURN relay (coturn in relay mode) can recover these. The protocol spec (§11) explicitly leaves this as an opt-in — no relay is the default.
+### TURN relay ✅ (shipped)
+Both browser and daemon modes support TURN relay.
+
+**Browser mode:** `iceServers()` in `browser.ts` reads `WASTE_CONFIG.turnURL` and `WASTE_CONFIG.turnSecret`, generates time-limited HMAC-SHA1 credentials (compatible with coturn `use-auth-secret`), and adds the TURN server to the ICE candidate list. The peer dot turns yellow for relayed connections (`candidate_type: relay`).
+
+**Daemon mode:** `-turn-url` and `-turn-secret` flags on `cmd/daemon`. `turnICEServers()` in `internal/netmgr/manager.go` generates HMAC-SHA1 credentials and injects them into the ICE server list for every new peer connection.
 
 ### Signaling ✅ YAW/2.1 (shipped)
-Forward-secret signaling via per-session ephemeral X25519 keys. See PROTOCOL.md §2.1 and `internal/anchor/client.go`. Falls back transparently to 2.0 static-key sealing for peers that don't speak 2.1.
+Forward-secret signaling via per-session ephemeral X25519 keys. Falls back transparently to 2.0 static-key sealing for peers that don't speak 2.1.
 
 ### Multi-Network Support ✅ (shipped)
-One daemon, multiple simultaneously-joined networks. Per-network HKDF-derived identities prevent cross-network correlation. Network-scoped SQLite stores, IPC commands carry `network_id`.
+One daemon, multiple simultaneously-joined networks. Per-network HKDF-derived identities prevent cross-network correlation. Network-scoped SQLite stores.
 
 ### Invite System ✅ (shipped)
-`waste:<base64>` URIs encoding anchor URL + network name. `--join` flag on daemon and TUI. Generated via IPC `generate_invite` or `Ctrl+I` in the TUI.
+`waste:<base64>` URIs encoding anchor URL + network name. `--join` flag on daemon and TUI. `Ctrl+I` in TUI or `generate_invite` via IPC.
 
 ### File Transfer ✅ (shipped)
-Dedicated binary DataChannel per transfer (`f:<xid>`). SHA-256 integrity verification. 64 KiB chunks with backpressure. Auto-accept. Downloads to `<data-dir>/downloads-<netid>/`.
+Dedicated binary DataChannel per transfer (`f:<xid>`). SHA-256 integrity verification. 64 KiB chunks with backpressure. Auto-accept. In browser mode: both pull (browse peer's shared folder) and push (📎 send directly to a peer).
+
+### Peer Gossip ✅ (shipped)
+When a new peer connects, the mesh immediately gossips the full peer list to them (`peer_gossip` wire message). New arrivals discover existing peers without needing the anchor to re-introduce them. The anchor becomes optional once the first handshake has happened — the mesh self-heals around anchor downtime.
 
 ---
 
 ## Remaining Work
 
-### Per-Network Share Directories
+### Session Persistence ✅ (shipped)
-The `-share-dir` flag is still global. A peer on two networks shares the same directory with both. The fix: make share dir per-network, configurable via an IPC command `set_share_dir {network_id, path}` or a config file, so Alice can share work files on "work" and music on "friends" independently.
+Browser mode now auto-rejoins on reload. The last-used network name, alias, and anchor URL are saved to `localStorage` on join and restored on load. A ⏻ logout button in the sidebar clears session state (optionally including the identity keypair) and reloads the page.
 
-### Peer Gossip (§8.4)
+### Per-Network Share Directories ✅ (shipped)
-The `peer_gossip` wire type exists in proto but is not implemented. When a peer knows about other peers (from prior connections), it could share address hints so the mesh can reconnect without the anchor. This makes the anchor optional once the initial handshake has happened — the network self-heals if the anchor goes down.
+Share state is tracked per `network_id` in the store (`sharedFilesByNetwork`). Switching networks switches the active share.
 
-### File Transfer UX
+### Persistent Multi-Share Configuration ✅ (shipped)
-- Manual accept/reject (currently auto-accept)
+Multiple share roots per network, with global (all networks) or scoped visibility.
-- Transfer cancellation via `file-cancel`
+
-- Progress display in TUI
+- **Daemon:** `shares.json` next to `identity.json` in the data dir. `add_share`/`remove_share`/`list_shares` IPC commands. File listing recursively walks all share roots, returning relative paths. Backward compatible with the existing `set_share_dir` single-dir mechanism.
-- Resume after disconnection
+- **Browser:** `waste_shares` in `localStorage` stores named share records (folder name, global flag). The `ShareManager` sidebar component shows the list with re-pick (↺) and remove (✕) buttons. Actual `File` objects live in memory — the record persists across reloads so the user can restore with one click.
+
+### Additional Channels / Rooms ✅ (shipped)
+Custom rooms are supported in both the web UI and the TUI.
+
+**Web UI:** The `+` button in the Rooms sidebar creates custom rooms, stored in `customRooms` keyed by `network_id`. Room names are slugified strings — any peer that sends to a room name causes it to appear on the recipient automatically.
+
+**TUI:** Type `/room <name>` in the input to create a room. The daemon persists it in the `rooms` SQLite table and echoes a `room_created` IPC event back. On reconnect, rooms are restored via `state_snapshot`. Rooms that receive messages while not active show a `*` prefix in the sidebar; the marker clears when you switch to that room.
+
+DM rooms (`dm:<peerId>`) appear automatically in both interfaces when messages arrive.
+
+### File Transfer UX ✅ (shipped)
+- Manual accept/reject via the Transfers panel in the sidebar
+- Transfer cancellation (`file-cancel` message, closes DataChannel)
+- Live progress bar per active transfer
+- Push (📎) sends directly to a peer without them needing to share a folder
+
+On daemon start, the download directory is scanned for `.tmp.meta` sidecars and a `resumable_transfers` IPC event is emitted so the UI can show pending transfers with a progress bar.
 
 ### Native UI
-Web frontend (React) + Tauri/native packaging. The IPC protocol is already the full boundary — the UI is a pure consumer.
+Web frontend (React, already built) + [Wails v2](https://wails.io) shell for native packaging. Wails is Go-native — no Rust toolchain required. The daemon runs embedded in the same process; the webview connects to the existing WebSocket IPC at `ws://127.0.0.1:17338`. Built in `cmd/app/` via `./build-app.sh`. System tray (Linux/Windows) and OS notifications are implemented. macOS menu-bar tray requires Cocoa main-thread integration — currently a stub.
-
-### TURN relay (optional)
-For symmetric-NAT pairs. Opt-in, off by default. Operates blind (relay sees only opaque DTLS-encrypted blobs). Run coturn in relay mode on the same VPS as the anchor.
 
 ---
 
@@ -77,19 +104,39 @@ For symmetric-NAT pairs. Opt-in, off by default. Operates blind (relay sees only
 |---|---|
 | ✅ shipped | Daemon + anchor server |
 | ✅ shipped | WebRTC DataChannels (ICE/STUN hole punching) |
-| ✅ shipped | Ed25519 identity, nacl/box signaling (YAW/2.0) |
+| ✅ shipped | Ed25519 identity, nacl/box signaling (YAW/2.0 + 2.1) |
 | ✅ shipped | IPC protocol — join/leave/chat/DM/state |
 | ✅ shipped | Message persistence (SQLite, per-network) |
 | ✅ shipped | TUI (`cmd/tui`, Bubble Tea) |
 | ✅ shipped | Invite system (`waste:` URI, `--join` flag) |
 | ✅ shipped | Multi-network support (HKDF derived identities) |
-| ✅ shipped | File transfer (dedicated binary DataChannels) |
+| ✅ shipped | File transfer (binary DataChannels, pull + push) |
 | ✅ shipped | Forward-secret signaling (YAW/2.1 ephemeral X25519) |
-| next | Per-network share directories |
+| ✅ shipped | Peer gossip (anchor-free mesh reconnection) |
-| next | Peer gossip (anchor-free reconnection) |
+| ✅ shipped | Web UI — browser mode + daemon mode |
-| next | File transfer UX (manual accept, cancel, TUI progress) |
+| ✅ shipped | Per-peer NAT/ICE status, identity backup/restore |
-| future | Native UI (React + Tauri) |
+| ✅ shipped | Per-network share directories |
-| future | TURN relay (opt-in, for symmetric-NAT pairs) |
+| ✅ shipped | Additional channels/rooms per network |
+| ✅ shipped | TURN relay (browser mode, coturn `use-auth-secret`) |
+| ✅ shipped | File transfer UX (progress, cancel, manual accept) |
+| ✅ shipped | Session persistence + logout (browser mode) |
+| ✅ shipped | Persistent multi-share config (shares.json + localStorage) |
+| ✅ shipped | Subfolder support + directory browser UI in file browser |
+| ✅ shipped | Signed invites + invite-only networks (`RequireInvite`) |
+| ✅ shipped | Hash-based "come hang" links (`#waste:...`) |
+| ✅ shipped | Protocol extensions documented in EXTENSIONS.md |
+| ✅ shipped | TURN relay for daemon mode (`-turn-url` / `-turn-secret`) |
+| ✅ shipped | TUI room creation + daemon-side room persistence |
+| ✅ shipped | Unread room indicators in TUI (`*` prefix) |
+| ✅ shipped | Per-network download directories (`-download-dir` flag + `set_download_dir` IPC) |
+| ✅ shipped | File transfer resume after disconnection |
+| ✅ shipped | PWA manifest — installable via "Add to Home Screen" on iOS and Android |
+| ✅ shipped | Native desktop app (Wails 2) — system tray (Linux/Windows), OS notifications, single binary |
+| ✅ shipped | Gitea Actions CI — server binaries (all platforms via cross-compile) + desktop app (Linux amd64) |
+| ✅ shipped | File transfer resume UX — resumable transfers surfaced in Transfers panel on reconnect |
+| ✅ shipped | P2P message history gossip (EXT-007) — new peers receive recent history from first connected peer |
+| ✅ shipped | Date-aware timestamps in TUI and web UI |
+| ✅ shipped | Historical peer alias resolution in web UI |
 
 ---
 

QUICKSTART.md

@@ -0,0 +1,89 @@
+# waste — quick start
+
+waste is a private, encrypted chat and file sharing app for people you trust.
+No accounts, no phone numbers, no central server that knows your messages.
+
+Pick the option that fits you best.
+
+---
+
+## Option 1 — Just open it in your browser
+
+If someone is running a waste anchor server and has shared the URL with you:
+
+1. Open the URL in any modern browser
+2. Enter your name and a network name your group has agreed on
+3. Done — you're in
+
+On mobile, tap **Share → Add to Home Screen** to install it as an app icon.
+
+To invite someone: click the 🔗 button in the sidebar and share the link.
+
+> Your identity and messages stay in your browser. Nothing is stored on the server — the server only helps peers find each other.
+
+---
+
+## Option 2 — Desktop app (recommended for regular use)
+
+Download the latest `waste` binary for your platform from the [releases page](../../releases).
+
+**Linux / macOS:**
+```bash
+chmod +x waste-linux-amd64   # or waste-darwin-arm64, etc.
+./waste-linux-amd64
+```
+
+**Windows:** double-click `waste-windows-amd64.exe`.
+
+The app opens a window with the waste UI. Enter your name, the anchor URL, and a network name to join. Your identity is saved between sessions in your config directory (`~/.config/waste` on Linux, `~/Library/Application Support/waste` on macOS, `%APPDATA%\waste` on Windows).
+
+On Linux and Windows a tray icon appears — closing the window hides to tray rather than quitting. Right-click the tray icon to reopen or quit.
+
+---
+
+## Option 3 — Run the daemon manually (headless / power users)
+
+If you want the daemon running in the background without the desktop UI — on a server, over SSH, or with the web UI in a browser pointed at your local machine:
+
+```bash
+# Download waste-daemon from the releases page, then:
+./waste-daemon -alias yourname -anchor wss://your-anchor-server/ws
+```
+
+Then open the web UI in a browser at the anchor URL, or point the web UI's daemon mode at `ws://127.0.0.1:17338`.
+
+Full flag reference:
+
+| Flag | Default | Description |
+|---|---|---|
+| `-alias` | `anon` | Your display name |
+| `-anchor` | — | Anchor server WebSocket URL |
+| `-data-dir` | `~/.waste` | Where identity and messages are stored |
+| `-download-dir` | same as data-dir | Where received files are saved |
+| `-ipc-port` | `17337` | Local TCP IPC port |
+| `-ws-port` | `0` (off) | WebSocket IPC port (needed for web UI) |
+| `-turn-url` | — | TURN relay URL (fixes mobile/CGNAT) |
+| `-turn-secret` | — | TURN shared secret |
+
+---
+
+## Inviting someone
+
+1. Click `Ctrl+I` in the TUI, or click **Generate invite** in the web UI
+2. Share the `waste:...` link with your friend (Signal, email, anything)
+3. They open it in a browser or pass it to `waste-daemon --join 'waste:...'`
+
+Invite links encode the anchor URL and network name. The anchor never sees your messages.
+
+---
+
+## Running your own anchor server
+
+The anchor is a tiny signaling server that helps peers find each other — it never sees plaintext messages or file contents. You need a VPS with a domain and TLS.
+
+```bash
+# On your VPS:
+./waste-anchor -bind 127.0.0.1:8080
+```
+
+Put it behind nginx with a `/ws` WebSocket proxy and serve the web UI static files at `/`. See [README.md](README.md#hosting-on-a-vps) for the full nginx setup.

README.md

@@ -41,6 +41,21 @@ On the VPS, run the anchor and keep it alive (systemd, screen, whatever you use)
 ./waste-anchor -bind 127.0.0.1:8080
 ```
 
+Or use the helper script which handles background execution and logging:
+
+```bash
+./setup-anchor.sh --bg    # start in background, logs to waste-anchor.log
+./setup-anchor.sh --stop  # stop it
+```
+
+To cross-compile and redeploy the anchor binary from your local machine:
+
+```bash
+./deploy-daemon.sh
+```
+
+This kills the existing anchor, uploads the new binary, and restarts it.
+
 The anchor listens locally on port 8080 — Nginx Proxy Manager will expose it over TLS.
 
 ### 2. Build and upload the web UI
@@ -53,7 +68,13 @@ npm run build
 # Produces web/dist/
 
 # Copy to VPS
-rsync -az web/dist/ user@your-vps:/var/www/waste-web/
+rsync -az web/dist/ user@your-vps:~/waste-www/
+```
+
+Or use the deploy script (builds + rsyncs in one step):
+
+```bash
+./deploy-web.sh
 ```
 
 Create a `/var/www/waste-web/config.js` on the VPS (not in git — this is host-specific):
@@ -81,11 +102,75 @@ Create one **Proxy Host** for your domain (e.g. `waste.example.com`) with TLS en
 - Choose "Serve Static Files" (or point to a local HTTP server serving `/var/www/waste-web`)
 - Enable the SPA fallback so unknown paths return `index.html` — this is required for invite links to work
 
-If NPM doesn't support static file serving directly, run a small static server on a spare port (e.g. `npx serve -s /var/www/waste-web -l 3000`) and proxy `/` to `127.0.0.1:3000`. The key requirements:
+If NPM doesn't support static file serving directly, run a small static server on a spare port and proxy `/` to it:
+
+```bash
+nohup npx serve -s ~/waste-www -l 1337 &
+```
+
+Or use `serve-web.sh` which handles PID tracking and restart:
+
+```bash
+./serve-web.sh   # kills existing instance, starts fresh, logs to waste-www.log
+```
+
+The key requirements:
 
 - `/ws` → anchor process (WebSocket, keep-alive)
 - `/*` → static file server (SPA fallback: return `index.html` for unknown paths)
 
+### 4. TURN relay (optional, fixes mobile / CGNAT)
+
+WebRTC hole-punching fails when both peers are behind symmetric NAT — common on mobile data and some ISPs. A TURN relay fixes this. It runs directly on the VPS, not through Nginx Proxy Manager.
+
+**Firewall:** open UDP 3478 (and optionally TCP 3478) on the Hetzner firewall. No NPM config needed — coturn speaks its own protocol.
+
+**Install coturn:**
+
+```bash
+apt install coturn
+```
+
+**`/etc/turnserver.conf`:**
+
+```
+listening-port=3478
+fingerprint
+use-auth-secret
+static-auth-secret=YOUR_SECRET_HERE
+realm=your-domain.com
+no-tcp-relay
+```
+
+Generate your own secret (do not reuse the example above):
+
+```bash
+openssl rand -hex 32
+```
+
+Enable and start:
+
+```bash
+systemctl enable coturn
+systemctl start coturn
+```
+
+**Update `config.js`** to tell browsers about the TURN server:
+
+```js
+window.WASTE_CONFIG = {
+  signalURL: 'wss://your-domain.com/ws',
+  turnURL: 'turn:your-domain.com:3478',
+  turnSecret: 'YOUR_SECRET_HERE',
+}
+```
+
+The `use-auth-secret` mode generates short-lived TURN credentials from the shared secret — no user database required. The relay only sees opaque DTLS-encrypted blobs.
+
+> The browser adapter reads `turnURL` and `turnSecret` from `WASTE_CONFIG` and adds the TURN server to the WebRTC `ICEServers` list automatically. If not configured, STUN-only is used (works for most desktop/home NAT situations).
+
+**Daemon mode TURN:** pass `-turn-url turn:your-domain.com:3478 -turn-secret YOUR_SECRET_HERE` when starting the daemon. The same coturn `use-auth-secret` HMAC-SHA1 scheme is used — no extra config required beyond what you set up for browser mode.
+
 ---
 
 ## How it works: daemon vs browser mode
@@ -94,17 +179,117 @@ There are two ways to use the web UI.
 
 ### Browser mode (for anyone with just a URL)
 
-When the web UI is served from a non-localhost origin it runs entirely in the browser — no daemon, no install. Crypto (Ed25519/X25519) runs via libsodium compiled to WebAssembly. The identity seed is stored in `localStorage` and persists across sessions.
+When the web UI is served from a non-localhost origin — or locally with `config.js` setting `signalURL` — it runs entirely in the browser. No daemon, no install. Crypto (Ed25519/X25519) runs via libsodium compiled to WebAssembly. The identity seed is stored in `localStorage` and persists across sessions.
 
 A user visits your domain, enters their name and a network name, and joins. Invite links (`waste:…` or `?n=name&a=wss://…`) pre-fill the join form.
 
 **Identity note:** browser mode uses the master identity directly (same keypair on all networks, compatible with yaw2). The daemon derives a separate keypair per network via HKDF. A browser user and a daemon user on the same network will see each other and can chat — they just appear as different peers even if they're the same person.
 
+**Mobile:** the web UI ships a PWA manifest (`manifest.json`) so iOS and Android users can pin it to their home screen via "Add to Home Screen" in Safari or Chrome. It runs as a standalone app with no browser chrome. No app store, no native install required.
+
+**Session persistence:** the last-used network name, alias, and anchor URL are saved to `localStorage`. On reload, the browser automatically rejoins the saved network — no login screen. To leave a network or switch identity, click the **⏻** button in the top-left of the sidebar. You'll be asked whether to also clear the identity keypair (export a backup first if you want to keep it).
+
 ### Daemon mode (for users running the daemon locally)
 
 `launch-web.sh` starts the Go daemon and the Vite dev server. The web UI connects to the local daemon over WebSocket IPC (`ws://127.0.0.1:17338`). The daemon handles all crypto and connects to the anchor.
 
-When the web UI is loaded from `localhost`, it defaults to daemon mode. A "Switch to browser mode" button is available in the join screen if the daemon is not running.
+When the web UI is loaded from `localhost` without a `config.js`, it defaults to daemon mode. A "Switch to browser mode" button is available in the join screen if the daemon is not running.
+
+---
+
+## File sharing (browser mode)
+
+File transfer runs peer-to-peer over WebRTC DataChannels — files never touch the anchor or any server.
+
+### Sharing a folder
+
+In the sidebar under **Sharing**, click **+ Share folder** to pick a local directory. The selected files become available for peers to browse and download. A checkbox lets you control whether subfolders are included (default: yes).
+
+Multiple folders can be shared — each appears in the list with a ↺ re-pick button (to restore after a page reload) and a ✕ remove button. The share list is saved in `localStorage` so it survives reloads; you'll be prompted to re-pick any folder whose files were lost on reload.
+
+> Your browser will show a warning along the lines of "really upload X files?" when you pick a folder. This is a built-in browser security prompt — **no files are uploaded anywhere.** Files are transferred directly to a peer only when they explicitly request one via the file browser.
+
+### Browsing a peer's files
+
+Hover over a peer in the sidebar to reveal action buttons. Click **⊞** to request their file list. A panel opens on the right showing their shared files. Folders appear first and are clickable — navigate into them with a breadcrumb trail at the top. Sort by name or size; search to filter across all files in the current directory. Click **↓** next to any file to download it directly from that peer.
+
+### Sending a file directly
+
+Hover over a peer and click **📎** to open a file picker. The selected file is pushed immediately to that peer — they don't need to be sharing anything. The recipient's browser auto-downloads the file on arrival.
+
+### Transfer resume (daemon mode)
+
+When a file transfer is interrupted mid-stream — peer disconnects, network drops — the partially-received data is kept on disk. A `.meta` sidecar is written alongside each in-progress `.tmp` file recording the file name, size, and SHA-256.
+
+When the peer reconnects and re-offers the same file, the daemon finds the matching partial by SHA-256, sends back a `file-accept` with a non-zero `resume_offset`, and the sender seeks to that byte position before streaming. The receiver appends to the existing file and verifies the full SHA-256 at the end.
+
+Corrupted transfers (all bytes received but hash mismatch) are removed. Interrupted transfers are kept indefinitely until either successfully completed or the `.tmp`/`.meta` files are manually deleted.
+
+> In daemon mode, use `add_share` / `remove_share` via IPC to manage share roots. Share configuration is stored in `shares.json` next to `identity.json` in the data directory and survives restarts. `networks: ["*"]` makes a share visible on all networks; omit to scope it to specific network IDs. The legacy `set_share_dir` single-dir command still works alongside it.
+
+### Daemon download directory
+
+Received files are saved into a per-network subdirectory so networks stay isolated. By default this is inside the data directory:
+
+```
+~/.waste/downloads-<network-id>/
+```
+
+Pass `-download-dir` at startup to use a different base:
+
+```bash
+go run ./cmd/daemon -download-dir ~/Downloads ...
+```
+
+Files then land in `~/Downloads/downloads-<network-id>/`. The path can also be changed at runtime via the `set_download_dir` IPC command (takes effect for the next incoming transfer on that network). The current path is reported in every `state_snapshot` event under `networks[].download_dir`.
+
+---
+
+## Desktop app (Wails)
+
+`cmd/app/` is a [Wails v2](https://wails.io) shell that packages the React frontend and the daemon logic into a single native binary for Windows, macOS, and Linux. No Rust, no Electron — just Go + the OS webview.
+
+The daemon runs embedded in the same process. The webview connects to `ws://127.0.0.1:17338` exactly as it does in browser-daemon mode, so the frontend code is unchanged. Identity and stores use the OS config directory (`~/Library/Application Support/waste` on macOS, `~/.config/waste` on Linux, `%APPDATA%\waste` on Windows).
+
+### Prerequisites
+
+- Go 1.24+
+- Node.js 20+
+- Wails CLI: `go install github.com/wailsapp/wails/v2/cmd/wails@latest`
+- Linux platform deps: `sudo apt-get install libgtk-3-dev libwebkit2gtk-4.0-dev libayatana-appindicator3-dev`
+
+### Build
+
+```bash
+# Production build → dist/waste-linux-amd64 (or waste.exe / waste.app)
+./build-app.sh
+
+# Dev mode (hot-reload; start Vite in another terminal: cd web && npm run dev)
+./build-app.sh dev
+
+# Build without system tray (no libayatana-appindicator3-dev needed)
+CGO_ENABLED=1 WAILS_TAGS=notray ./build-app.sh
+```
+
+`build-app.sh` builds the React frontend, copies `web/dist/` into `cmd/app/frontend/dist/` for embedding, then runs `wails build`. The result is a single self-contained binary.
+
+### What the desktop app provides
+
+- **Single binary** — daemon logic is embedded, no subprocess to manage
+- **System tray** (Linux/Windows) — hide to tray, reopen from tray menu, Quit
+- **macOS** — hides to Dock on window close; full menu-bar tray is future work
+- **OS notifications** — native popup on new message or completed file transfer (uses the browser `Notification` API via Wails events; the app will request permission on first notification)
+- **Data directory** — OS-appropriate config dir (`~/.config/waste`, `~/Library/Application Support/waste`, `%APPDATA%\waste`)
+
+### CI / automated builds
+
+`.gitea/workflows/build.yml` runs on every `v*` tag push:
+
+- **Server binaries** (daemon + anchor): cross-compiled for Linux amd64/arm64, macOS amd64/arm64, Windows amd64 — no CGo, no special runner needed
+- **Desktop app**: Linux amd64 on the default runner (installs GTK + WebKit + appindicator deps automatically)
+- **Releases**: all artifacts attached to the Gitea release
+
+To add macOS or Windows desktop builds, add self-hosted Gitea runners on those platforms and mirror the `desktop-linux` job.
 
 ---
 
@@ -175,6 +360,24 @@ The invite encodes the anchor URL and network name. Sharing it only lets the rec
 
 Invite links also work in the web UI. Share `https://your-domain.com/?invite=waste:eyJ...` and the join form is pre-filled.
 
+### Signed invites and invite-only networks (waste-go extension)
+
+Invites generated by `generate_invite` are **cryptographically signed** by the generating peer. The `waste:` payload carries an `inviter` field (Ed25519 public key) and a `sig` field (signature over anchor + network + inviter). When Bob joins, the invite is forwarded in the `hello` message so Alice can verify it.
+
+To enable invite-only enforcement on a network, pass `require_invite: true` in the `join_network` command. Peers presenting no invite, an unsigned invite, or an invite signed by an unknown peer are rejected.
+
+### "Come hang" hang links
+
+The 🔗 button in the web UI copies a **hash-based hang link**:
+
+```
+https://your-domain.com/#waste:eyJ...
+```
+
+The fragment (`#...`) is never sent to the server, so the network name stays server-opaque. Anyone who opens the link gets the join form pre-filled — but they still need a proper signed invite to be accepted on networks with `require_invite` enabled. Suitable for public announcements of open or semi-open networks.
+
+See [EXTENSIONS.md](EXTENSIONS.md) for the full protocol addendum.
+
 ---
 
 ## Terminal UI
@@ -191,6 +394,8 @@ go run ./cmd/tui -network friends
 
 **Key bindings:** `Tab`/`Shift+Tab` — switch rooms · `PgUp`/`PgDn` — scroll · `Enter` — send · `Ctrl+I` — generate invite · `Esc` — close overlay · `Ctrl+C` — quit
 
+**Slash commands:** `/room <name>` — create a new room (persisted in SQLite, restored on reconnect). Rooms with unread messages show a `*` prefix in the sidebar.
+
 ---
 
 ## IPC protocol
@@ -207,13 +412,20 @@ Newline-delimited JSON on TCP port 17337 (or WebSocket on 17338).
 {"type":"get_file_list"}
 {"type":"get_file_list","peer_id":"<64-hex>"}
 {"type":"send_file","peer_id":"<64-hex>","path":"notes.txt"}
+{"type":"add_share","path":"/home/alice/Music"}                                 // global share
+{"type":"add_share","path":"/home/alice/Docs","network_ids":["abc123"]}        // network-scoped
+{"type":"remove_share","path":"/home/alice/Music"}
+{"type":"list_shares"}
+{"type":"create_room","room":"dev"}
+{"type":"set_download_dir","path":"/home/alice/Downloads"}               // change download base for current network
+{"type":"set_download_dir","network_id":"<16-hex>","path":"/home/alice/Downloads/friends"}
 {"type":"export_identity","passphrase":"..."}
 {"type":"import_identity","passphrase":"...","backup":"..."}
 ```
 
 **Events:**
 ```jsonc
-{"type":"state_snapshot","local_peer":{...},"connected_peers":[...],"master_alias":"alice","master_id":"<64-hex>"}
+{"type":"state_snapshot","local_peer":{...},"connected_peers":[...],"master_alias":"alice","master_id":"<64-hex>","networks":[{"network_id":"...","network_name":"friends","share_dir":"...","download_dir":"..."}]}
 {"type":"peer_connected","peer":{"id":"<64-hex>","alias":"bob"}}
 {"type":"session_ready","peer_id":"<64-hex>","nick":"bob"}
 {"type":"peer_disconnected","peer_id":"<64-hex>"}
@@ -222,6 +434,7 @@ Newline-delimited JSON on TCP port 17337 (or WebSocket on 17338).
 {"type":"invite_generated","invite":"waste:<base64>"}
 {"type":"incoming_file","peer_id":"<64-hex>","offer":{"xid":"...","name":"notes.txt","size":1024,"sha256":"..."}}
 {"type":"file_complete","transfer_id":"...","path":"/downloads/notes.txt"}
+{"type":"room_created","network_id":"...","room":"dev"}
 {"type":"identity_exported","backup":"..."}
 {"type":"error","error_message":"..."}
 ```

build-app.sh

@@ -0,0 +1,30 @@
+#!/usr/bin/env bash
+# Build the waste desktop app (Wails + embedded React frontend).
+#
+# Prerequisites:
+#   go install github.com/wailsapp/wails/v2/cmd/wails@latest
+#   Node.js 20+
+#
+# Usage:
+#   ./build-app.sh           # production build → bin/waste (or bin/waste.exe)
+#   ./build-app.sh dev       # dev mode (hot-reload; requires Vite dev server)
+set -euo pipefail
+
+MODE="${1:-build}"
+
+echo "==> Building web frontend..."
+(cd web && npm install --silent && npm run build)
+
+echo "==> Copying frontend dist into app package..."
+rm -rf cmd/app/frontend/dist
+cp -r web/dist cmd/app/frontend/dist
+
+if [ "$MODE" = "dev" ]; then
+  echo "==> Starting Wails dev mode (start 'cd web && npm run dev' in another terminal)..."
+  (cd cmd/app && wails dev)
+else
+  echo "==> Running Wails build..."
+  mkdir -p bin
+  (cd cmd/app && wails build -o "$(pwd)/../../bin/waste")
+  echo "==> Done: bin/waste"
+fi

cmd/app/app.go

@@ -0,0 +1,130 @@
+package main
+
+import (
+	"context"
+	"log"
+	"os"
+	"path/filepath"
+
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+
+	"github.com/waste-go/internal/crypto"
+	"github.com/waste-go/internal/ipc"
+	"github.com/waste-go/internal/netmgr"
+	"github.com/waste-go/internal/proto"
+)
+
+const wsPort = 17338
+
+// App is the Wails application backend.
+// It embeds the daemon directly — no subprocess needed.
+// The React frontend connects to the daemon's WebSocket IPC at ws://127.0.0.1:17338,
+// exactly as it does in browser-daemon mode.
+type App struct {
+	ctx context.Context
+	mgr *netmgr.Manager
+}
+
+func newApp() *App {
+	return &App{}
+}
+
+// startup is called when the Wails window is ready. It initialises the daemon,
+// starts the WebSocket IPC listener, sets up the system tray, and begins
+// forwarding message/file events to the webview as OS notifications.
+func (a *App) startup(ctx context.Context) {
+	a.ctx = ctx
+
+	dir := dataDir()
+	id, err := crypto.LoadOrCreate(dir, "")
+	if err != nil {
+		log.Printf("app: identity: %v", err)
+		runtime.MessageDialog(ctx, runtime.MessageDialogOptions{
+			Type:    runtime.ErrorDialog,
+			Title:   "waste — startup error",
+			Message: "Failed to load identity: " + err.Error(),
+		})
+		return
+	}
+	log.Printf("app: peer id: %s  alias: %s", id.PeerID().Short(), id.Alias)
+
+	a.mgr = netmgr.New(netmgr.Config{
+		MasterIdentity: id,
+		StoreDir:       dir,
+	})
+
+	// Forward daemon events to the webview and generate OS notifications.
+	go a.watchEvents()
+
+	// Start the WebSocket IPC server; the webview connects here (daemon mode).
+	go func() {
+		if err := ipc.RunWS(a.mgr, wsPort); err != nil {
+			log.Printf("app: IPC: %v", err)
+		}
+	}()
+
+	log.Printf("app: WebSocket IPC listening on 127.0.0.1:%d", wsPort)
+
+	// System tray (Linux/Windows; no-op on macOS — see tray_darwin.go).
+	a.startTray()
+}
+
+// shutdown is called when the Wails app exits.
+func (a *App) shutdown(ctx context.Context) {
+	if a.mgr != nil {
+		a.mgr.LeaveAll()
+	}
+}
+
+// watchEvents subscribes to all daemon events and emits OS notifications for
+// incoming messages and completed file transfers. The "notify" event is received
+// by the frontend via Wails EventsOn and displayed using the browser Notification API.
+func (a *App) watchEvents() {
+	if a.mgr == nil {
+		return
+	}
+	events := a.mgr.Subscribe()
+	defer a.mgr.Unsubscribe(events)
+
+	for evt := range events {
+		switch evt.Type {
+		case proto.EvtMessageReceived:
+			if evt.Message == nil {
+				continue
+			}
+			// Don't notify for messages sent by the local peer.
+			if a.mgr.MasterIdentity() != nil && evt.Message.From == a.mgr.MasterIdentity().PeerID() {
+				continue
+			}
+			runtime.EventsEmit(a.ctx, "notify", map[string]string{
+				"title": "waste — new message",
+				"body":  evt.Message.Text,
+			})
+
+		case proto.EvtFileComplete:
+			runtime.EventsEmit(a.ctx, "notify", map[string]string{
+				"title": "waste — file received",
+				"body":  filepath.Base(evt.Path),
+			})
+		}
+	}
+}
+
+// dataDir returns the OS-appropriate config directory for identity and stores.
+// macOS: ~/Library/Application Support/waste
+// Linux: ~/.config/waste
+// Windows: %APPDATA%\waste
+func dataDir() string {
+	base, err := os.UserConfigDir()
+	if err != nil {
+		if home, err := os.UserHomeDir(); err == nil {
+			return filepath.Join(home, ".waste")
+		}
+		return ".waste"
+	}
+	dir := filepath.Join(base, "waste")
+	if err := os.MkdirAll(dir, 0o700); err != nil {
+		log.Printf("app: mkdir %s: %v", dir, err)
+	}
+	return dir
+}

cmd/app/main.go

@@ -0,0 +1,66 @@
+// waste desktop app — Wails shell wrapping the daemon and React UI.
+// In dev mode the UI is served from the Vite dev server (http://localhost:5173).
+// In production the compiled frontend is embedded from frontend/dist/.
+package main
+
+import (
+	"embed"
+	"log"
+	"os"
+
+	"github.com/wailsapp/wails/v2"
+	"github.com/wailsapp/wails/v2/pkg/logger"
+	"github.com/wailsapp/wails/v2/pkg/options"
+	"github.com/wailsapp/wails/v2/pkg/options/assetserver"
+	"github.com/wailsapp/wails/v2/pkg/options/linux"
+	"github.com/wailsapp/wails/v2/pkg/options/mac"
+	"github.com/wailsapp/wails/v2/pkg/options/windows"
+)
+
+//go:embed all:frontend/dist
+var assets embed.FS
+
+func main() {
+	app := newApp()
+
+	logLevel := logger.INFO
+	if os.Getenv("WASTE_DEBUG") != "" {
+		logLevel = logger.DEBUG
+	}
+
+	err := wails.Run(&options.App{
+		Title:            "waste",
+		Width:            1200,
+		Height:           800,
+		MinWidth:         800,
+		MinHeight:        600,
+		DisableResize:    false,
+		Fullscreen:       false,
+		LogLevel:         logLevel,
+		LogLevelProduction: logger.ERROR,
+		AssetServer: &assetserver.Options{
+			Assets: assets,
+		},
+		OnStartup:  app.startup,
+		OnShutdown: app.shutdown,
+		Bind:       []interface{}{app},
+		// Hide the window instead of quitting when the close button is clicked.
+		// The user can quit via the app menu or by stopping the process.
+		HideWindowOnClose: true,
+		Mac: &mac.Options{
+			TitleBar: mac.TitleBarHiddenInset(),
+			About: &mac.AboutInfo{
+				Title:   "waste",
+				Message: "Decentralized friend-to-friend encrypted mesh networking.",
+			},
+		},
+		Windows: &windows.Options{
+			WebviewIsTransparent: false,
+			WindowIsTranslucent:  false,
+		},
+		Linux: &linux.Options{},
+	})
+	if err != nil {
+		log.Fatal(err)
+	}
+}

cmd/app/tray.go

@@ -0,0 +1,35 @@
+//go:build !darwin && !notray
+
+package main
+
+import (
+	_ "embed"
+
+	"github.com/getlantern/systray"
+	"github.com/wailsapp/wails/v2/pkg/runtime"
+)
+
+//go:embed appicon.png
+var trayIcon []byte
+
+func (a *App) startTray() {
+	go systray.Run(func() {
+		systray.SetIcon(trayIcon)
+		systray.SetTooltip("waste")
+
+		mShow := systray.AddMenuItem("Open waste", "Show the waste window")
+		systray.AddSeparator()
+		mQuit := systray.AddMenuItem("Quit", "Quit waste")
+
+		for {
+			select {
+			case <-mShow.ClickedCh:
+				runtime.WindowShow(a.ctx)
+			case <-mQuit.ClickedCh:
+				systray.Quit()
+				runtime.Quit(a.ctx)
+				return
+			}
+		}
+	}, func() {})
+}

cmd/app/tray_darwin.go

@@ -0,0 +1,14 @@
+//go:build darwin
+
+package main
+
+// On macOS, Cocoa requires the system tray to run on the main thread, which
+// Wails already owns. Full menu-bar tray integration is future work and would
+// require an NSStatusItem helper or a fork of systray that supports
+// RunWithExternalLoop on macOS.
+//
+// For now the app hides to the Dock when the window is closed (HideWindowOnClose)
+// and users can reopen it from the Dock or Cmd+Tab. The standard macOS Cmd+Q
+// binding quits cleanly via Wails.
+
+func (a *App) startTray() {}

cmd/app/tray_stub.go

@@ -0,0 +1,8 @@
+//go:build notray
+
+package main
+
+// Build with -tags notray to omit the system tray (no libayatana-appindicator3-dev needed).
+// Used for headless builds and CI environments that haven't installed the GTK tray headers.
+
+func (a *App) startTray() {}

cmd/app/wails.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "https://wails.io/schemas/config.v2.json",
+  "name": "waste",
+  "outputfilename": "waste",
+  "frontend:install": "echo 'run: cd web && npm install'",
+  "frontend:build": "echo 'run: ./build-app.sh'",
+  "frontend:dev:watcher": "",
+  "frontend:dev:serverUrl": "http://localhost:5173",
+  "author": {
+    "name": "waste-go"
+  }
+}

cmd/daemon/main.go

@@ -21,7 +21,10 @@ func main() {
 	wsPort         := flag.Int("ws-port", 0, "port for WebSocket IPC (web UI); 0 = disabled")
 	anchorURL      := flag.String("anchor", "", "anchor WebSocket URL, e.g. ws://your-vps:17339/ws")
 	shareDir       := flag.String("share-dir", "", "directory to share with peers on the network")
+	downloadDir    := flag.String("download-dir", "", "base directory for received files; defaults to data-dir, split by network")
 	joinInvite     := flag.String("join", "", "waste: invite string — sets anchor URL and auto-joins the network on startup")
+	turnURL        := flag.String("turn-url", "", "TURN server URL, e.g. turn:your-vps:3478")
+	turnSecret     := flag.String("turn-secret", "", "shared secret for coturn use-auth-secret HMAC credential")
 	importBackup   := flag.String("import-identity", "", "path to a yaw-key-backup-1 JSON file to import")
 	importPassword := flag.String("import-passphrase", "", "passphrase for --import-identity")
 	flag.Parse()
@@ -74,6 +77,9 @@ func main() {
 		StoreDir:       dir,
 		AnchorURL:      *anchorURL,
 		ShareDir:       expandHome(*shareDir),
+		DownloadDir:    expandHome(*downloadDir),
+		TurnURL:        *turnURL,
+		TurnSecret:     *turnSecret,
 	})
 
 	if autoJoinNetwork != "" {

cmd/tui/main.go

@@ -107,6 +107,7 @@ type model struct {
 	rooms      []string // "general" always first; DM rooms appended
 	activeRoom int
 	messages   map[string][]entry
+	unread     map[string]bool // rooms with messages since last viewed
 
 	peers     map[proto.PeerID]string // connected peers: id → alias
 	peerOrder []proto.PeerID
@@ -131,6 +132,7 @@ func newModel(ipcPort int, network string) model {
 		networkName: network,
 		rooms:       []string{"general"},
 		messages:    make(map[string][]entry),
+		unread:      make(map[string]bool),
 		peers:       make(map[proto.PeerID]string),
 		input:       ti,
 		status:      "connecting…",
@@ -215,9 +217,11 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 			m, cmds = m.doSend(cmds)
 		case msg.Type == tea.KeyTab:
 			m.activeRoom = (m.activeRoom + 1) % len(m.rooms)
+			delete(m.unread, m.activeRoomName())
 			m = m.refreshViewport()
 		case msg.Type == tea.KeyShiftTab:
 			m.activeRoom = (m.activeRoom - 1 + len(m.rooms)) % len(m.rooms)
+			delete(m.unread, m.activeRoomName())
 			m = m.refreshViewport()
 		default:
 			var tiCmd tea.Cmd
@@ -251,8 +255,15 @@ func (m model) applyEvent(evt proto.IpcMessage) model {
 			m.peers[p.ID] = p.Alias
 			m.peerOrder = append(m.peerOrder, p.ID)
 		}
+		for _, r := range evt.Rooms {
+			m = m.addRoom(r)
+		}
 		m.status = fmt.Sprintf("● %s  ·  %s", m.localAlias, m.networkName)
 
+	case proto.EvtRoomCreated:
+		m = m.addRoom(evt.Room)
+		m = m.refreshViewport()
+
 	case proto.EvtSessionReady:
 		if evt.PeerID != nil {
 			pid := *evt.PeerID
@@ -283,7 +294,7 @@ func (m model) applyEvent(evt proto.IpcMessage) model {
 		}
 
 	case proto.EvtInviteGenerated:
-		m.invitePopup = evt.InviteString
+		m.invitePopup = evt.InviteGenerated
 
 	case proto.EvtMessageReceived:
 		if evt.Message != nil {
@@ -296,6 +307,9 @@ func (m model) applyEvent(evt proto.IpcMessage) model {
 			}
 			m.messages[msg.Room] = append(m.messages[msg.Room], e)
 			m = m.addRoom(msg.Room)
+			if msg.Room != m.activeRoomName() {
+				m.unread[msg.Room] = true
+			}
 			m = m.refreshViewport()
 		}
 	}
@@ -309,6 +323,14 @@ func (m model) doSend(cmds []tea.Cmd) (model, []tea.Cmd) {
 	}
 	m.input.SetValue("")
 
+	if strings.HasPrefix(body, "/room ") {
+		name := strings.TrimSpace(strings.TrimPrefix(body, "/room "))
+		if name != "" {
+			cmds = append(cmds, sendIPC(m.enc, proto.IpcMessage{Type: proto.CmdCreateRoom, Room: name}))
+		}
+		return m, cmds
+	}
+
 	room := m.rooms[m.activeRoom]
 	ipcMsg := proto.IpcMessage{Type: proto.CmdSendMessage, Room: room, Body: body}
 	if strings.HasPrefix(room, "dm:") {
@@ -361,7 +383,7 @@ func (m model) refreshViewport() model {
 	w := m.vpContentWidth()
 	var sb strings.Builder
 	for _, e := range m.messages[room] {
-		ts := styleMsgTime.Render(e.at.Format("15:04"))
+		ts := styleMsgTime.Render(formatMsgTime(e.at))
 		var from string
 		if e.fromMe {
 			from = styleMsgMe.Render(e.from)
@@ -430,7 +452,7 @@ func (m model) View() string {
 	if m.errMsg != "" {
 		statusLine = styleErr.Render(" ✗ " + m.errMsg)
 	} else {
-		hint := "  tab: rooms · ctrl+i: invite · ctrl+c: quit"
+		hint := "  tab: rooms · /room <name>: new room · ctrl+i: invite · ctrl+c: quit"
 		statusLine = styleStatus.Width(m.width).Render(" " + m.status + hint)
 	}
 
@@ -468,7 +490,11 @@ func (m model) renderRooms(boxH int) string {
 		if i == m.activeRoom {
 			lines = append(lines, styleActive.Width(innerW).Render("▶ "+label))
 		} else {
-			lines = append(lines, styleRoom.Width(innerW).Render("  "+label))
+			prefix := "  "
+			if m.unread[room] {
+				prefix = "* "
+			}
+			lines = append(lines, styleRoom.Width(innerW).Render(prefix+label))
 		}
 	}
 	for len(lines) < contentH {
@@ -588,6 +614,17 @@ func filterIDs(ids []proto.PeerID, remove proto.PeerID) []proto.PeerID {
 	return out
 }
 
+func formatMsgTime(t time.Time) string {
+	now := time.Now()
+	if t.Year() == now.Year() && t.YearDay() == now.YearDay() {
+		return t.Format("15:04")
+	}
+	if t.Year() == now.Year() && t.YearDay() == now.YearDay()-1 {
+		return "Yesterday " + t.Format("15:04")
+	}
+	return t.Format("Jan 2 15:04")
+}
+
 func min(a, b int) int {
 	if a < b {
 		return a

go.mod

@@ -6,14 +6,16 @@ require (
 	filippo.io/edwards25519 v1.2.0
 	github.com/google/uuid v1.6.0
 	github.com/pion/webrtc/v3 v3.3.6
-	golang.org/x/crypto v0.24.0
+	golang.org/x/crypto v0.33.0
 	modernc.org/sqlite v1.53.0
 	nhooyr.io/websocket v1.8.17
 )
 
 require (
+	git.sr.ht/~jackmordaunt/go-toast/v2 v2.0.3 // indirect
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/bep/debounce v1.2.1 // indirect
 	github.com/charmbracelet/bubbles v1.0.0 // indirect
 	github.com/charmbracelet/bubbletea v1.3.10 // indirect
 	github.com/charmbracelet/colorprofile v0.4.1 // indirect
@@ -27,7 +29,26 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
+	github.com/getlantern/context v0.0.0-20190109183933-c447772a6520 // indirect
+	github.com/getlantern/errors v0.0.0-20190325191628-abdb3e3e36f7 // indirect
+	github.com/getlantern/golog v0.0.0-20190830074920-4ef2e798c2d7 // indirect
+	github.com/getlantern/hex v0.0.0-20190417191902-c6586a6fe0b7 // indirect
+	github.com/getlantern/hidden v0.0.0-20190325191715-f02dbb02be55 // indirect
+	github.com/getlantern/ops v0.0.0-20190325191751-d70cb0d6f85f // indirect
+	github.com/getlantern/systray v1.2.2 // indirect
+	github.com/go-ole/go-ole v1.3.0 // indirect
+	github.com/go-stack/stack v1.8.0 // indirect
+	github.com/godbus/dbus/v5 v5.1.0 // indirect
+	github.com/gorilla/websocket v1.5.3 // indirect
+	github.com/jchv/go-winloader v0.0.0-20210711035445-715c2860da7e // indirect
+	github.com/labstack/echo/v4 v4.13.3 // indirect
+	github.com/labstack/gommon v0.4.2 // indirect
+	github.com/leaanthony/go-ansi-parser v1.6.1 // indirect
+	github.com/leaanthony/gosod v1.0.4 // indirect
+	github.com/leaanthony/slicer v1.6.0 // indirect
+	github.com/leaanthony/u v1.1.1 // indirect
 	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
+	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
 	github.com/mattn/go-runewidth v0.0.19 // indirect
@@ -35,6 +56,7 @@ require (
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/termenv v0.16.0 // indirect
 	github.com/ncruces/go-strftime v1.0.0 // indirect
+	github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c // indirect
 	github.com/pion/datachannel v1.5.8 // indirect
 	github.com/pion/dtls/v2 v2.2.12 // indirect
 	github.com/pion/ice/v2 v2.3.38 // indirect
@@ -50,15 +72,24 @@ require (
 	github.com/pion/stun v0.6.1 // indirect
 	github.com/pion/transport/v2 v2.2.10 // indirect
 	github.com/pion/turn/v2 v2.1.6 // indirect
+	github.com/pkg/browser v0.0.0-20240102092130-5ac0b6a4141c // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/remyoudompheng/bigfft v0.0.0-20230129092748-24d4a6f8daec // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
-	github.com/stretchr/testify v1.9.0 // indirect
+	github.com/samber/lo v1.49.1 // indirect
+	github.com/stretchr/testify v1.10.0 // indirect
+	github.com/tkrajina/go-reflector v0.5.8 // indirect
+	github.com/valyala/bytebufferpool v1.0.0 // indirect
+	github.com/valyala/fasttemplate v1.2.2 // indirect
+	github.com/wailsapp/go-webview2 v1.0.22 // indirect
+	github.com/wailsapp/mimetype v1.4.1 // indirect
+	github.com/wailsapp/wails/v2 v2.12.0 // indirect
 	github.com/wlynxg/anet v0.0.3 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
-	golang.org/x/net v0.22.0 // indirect
+	golang.org/x/net v0.35.0 // indirect
 	golang.org/x/sys v0.44.0 // indirect
-	golang.org/x/text v0.16.0 // indirect
+	golang.org/x/text v0.22.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	modernc.org/libc v1.73.4 // indirect
 	modernc.org/mathutil v1.7.1 // indirect

go.sum

@@ -1,9 +1,13 @@
 filippo.io/edwards25519 v1.2.0 h1:crnVqOiS4jqYleHd9vaKZ+HKtHfllngJIiOpNpoJsjo=
 filippo.io/edwards25519 v1.2.0/go.mod h1:xzAOLCNug/yB62zG1bQ8uziwrIqIuxhctzJT18Q77mc=
+git.sr.ht/~jackmordaunt/go-toast/v2 v2.0.3 h1:N3IGoHHp9pb6mj1cbXbuaSXV/UMKwmbKLf53nQmtqMA=
+git.sr.ht/~jackmordaunt/go-toast/v2 v2.0.3/go.mod h1:QtOLZGz8olr4qH2vWK0QH0w0O4T9fEIjMuWpKUsH7nc=
 github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
 github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
+github.com/bep/debounce v1.2.1 h1:v67fRdBA9UQu2NhLFXrSg0Brw7CexQekrBwDMM8bzeY=
+github.com/bep/debounce v1.2.1/go.mod h1:H8yggRPQKLUhUoqrJC1bO2xNya7vanpDl7xR3ISbCJ0=
 github.com/charmbracelet/bubbles v1.0.0 h1:12J8/ak/uCZEMQ6KU7pcfwceyjLlWsDLAxB5fXonfvc=
 github.com/charmbracelet/bubbles v1.0.0/go.mod h1:9d/Zd5GdnauMI5ivUIVisuEm3ave1XwXtD1ckyV6r3E=
 github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw=
@@ -31,21 +35,63 @@ github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkp
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4=
 github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
+github.com/getlantern/context v0.0.0-20190109183933-c447772a6520 h1:NRUJuo3v3WGC/g5YiyF790gut6oQr5f3FBI88Wv0dx4=
+github.com/getlantern/context v0.0.0-20190109183933-c447772a6520/go.mod h1:L+mq6/vvYHKjCX2oez0CgEAJmbq1fbb/oNJIWQkBybY=
+github.com/getlantern/errors v0.0.0-20190325191628-abdb3e3e36f7 h1:6uJ+sZ/e03gkbqZ0kUG6mfKoqDb4XMAzMIwlajq19So=
+github.com/getlantern/errors v0.0.0-20190325191628-abdb3e3e36f7/go.mod h1:l+xpFBrCtDLpK9qNjxs+cHU6+BAdlBaxHqikB6Lku3A=
+github.com/getlantern/golog v0.0.0-20190830074920-4ef2e798c2d7 h1:guBYzEaLz0Vfc/jv0czrr2z7qyzTOGC9hiQ0VC+hKjk=
+github.com/getlantern/golog v0.0.0-20190830074920-4ef2e798c2d7/go.mod h1:zx/1xUUeYPy3Pcmet8OSXLbF47l+3y6hIPpyLWoR9oc=
+github.com/getlantern/hex v0.0.0-20190417191902-c6586a6fe0b7 h1:micT5vkcr9tOVk1FiH8SWKID8ultN44Z+yzd2y/Vyb0=
+github.com/getlantern/hex v0.0.0-20190417191902-c6586a6fe0b7/go.mod h1:dD3CgOrwlzca8ed61CsZouQS5h5jIzkK9ZWrTcf0s+o=
+github.com/getlantern/hidden v0.0.0-20190325191715-f02dbb02be55 h1:XYzSdCbkzOC0FDNrgJqGRo8PCMFOBFL9py72DRs7bmc=
+github.com/getlantern/hidden v0.0.0-20190325191715-f02dbb02be55/go.mod h1:6mmzY2kW1TOOrVy+r41Za2MxXM+hhqTtY3oBKd2AgFA=
+github.com/getlantern/ops v0.0.0-20190325191751-d70cb0d6f85f h1:wrYrQttPS8FHIRSlsrcuKazukx/xqO/PpLZzZXsF+EA=
+github.com/getlantern/ops v0.0.0-20190325191751-d70cb0d6f85f/go.mod h1:D5ao98qkA6pxftxoqzibIBBrLSUli+kYnJqrgBf9cIA=
+github.com/getlantern/systray v1.2.2 h1:dCEHtfmvkJG7HZ8lS/sLklTH4RKUcIsKrAD9sThoEBE=
+github.com/getlantern/systray v1.2.2/go.mod h1:pXFOI1wwqwYXEhLPm9ZGjS2u/vVELeIgNMY5HvhHhcE=
+github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
+github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
+github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
+github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
+github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
+github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e h1:ijClszYn+mADRFY17kjQEVQ1XRhq2/JR1M3sGqeJoxs=
 github.com/google/pprof v0.0.0-20250317173921-a4b03ec1a45e/go.mod h1:boTsfXsheKC2y+lKOCMpSfarhxDeIzfZG1jqGcPl3cA=
 github.com/google/uuid v1.3.1/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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@@ -130,12 +201,15 @@ golang.org/x/crypto v0.12.0/go.mod h1:NF0Gs7EO5K4qLn+Ylc+fih8BSTeIjAP05siRnAh98y
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 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.7.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -173,6 +254,7 @@ golang.org/x/term v0.11.0/go.mod h1:zC9APTIj3jG3FdV/Ons+XE1riIZXG4aZ4GTHiPZJPIU=
 golang.org/x/term v0.16.0/go.mod h1:yn7UURbUtPyrVJPGPq404EukNFxcm/foM+bV/bfcDsY=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.9.0/go.mod h1:e1OnstbJyHTd6l/uOt8jFFHp6TRDWZR/bV3emEE/zU8=
@@ -180,6 +262,8 @@ golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 golang.org/x/text v0.16.0 h1:a94ExnEXNtEwYLGJSIUxnWoxoRz/ZcCsV63ROupILh4=
 golang.org/x/text v0.16.0/go.mod h1:GhwF1Be+LQoKShO3cGOHzqOgRrGaYc9AvblQOmPVHnI=
+golang.org/x/text v0.22.0 h1:bofq7m3/HAFvbF51jz3Q9wLg3jkvSPuiZu/pD1XwgtM=
+golang.org/x/text v0.22.0/go.mod h1:YRoo4H8PVmsu+E3Ou7cqLVH8oXWIHVoX0jqUWALQhfY=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
@@ -187,6 +271,7 @@ golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
 golang.org/x/tools v0.45.0 h1:18qN3FAooORvApf5XjCXgsuayZOEtXf6JK18I3+ONa8=
 golang.org/x/tools v0.45.0/go.mod h1:LuUGqqaXcXMEFEruIVJVm5mgDD8vww/z/SR1gQ4uE/0=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/Knetic/govaluate.v3 v3.0.0/go.mod h1:csKLBORsPbafmSCGTEh3U7Ozmsuq8ZSIlKk1bcqph0E=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

internal/anchor/client.go

@@ -229,7 +229,7 @@ func runOnce(ctx context.Context, anchorURL, netHash string, id *crypto.Identity
 				mu.Lock()
 				if sess == nil {
 					// Answerer: we haven't created a session yet, do it now.
-					pc, err := newPC()
+					pc, err := newPC(m.ICEServers)
 					if err != nil {
 						mu.Unlock()
 						log.Printf("anchor: new PC for answerer: %v", err)
@@ -412,7 +412,7 @@ func dispatchSignaling(
 // startOffer creates a session, sends our ekey, waits up to ekeyTimeout for
 // the peer's ekey, then sends the offer (ephemeral or static).
 func startOffer(ctx context.Context, peerID proto.PeerID, id *crypto.Identity, m *mesh.Mesh, s *sender) (*peerSession, error) {
-	pc, err := newPC()
+	pc, err := newPC(m.ICEServers)
 	if err != nil {
 		return nil, err
 	}
@@ -473,7 +473,7 @@ func startOffer(ctx context.Context, peerID proto.PeerID, id *crypto.Identity, m
 
 // answerOffer processes an incoming offer and returns the PeerConnection.
 func answerOffer(ctx context.Context, payload proto.SignalingPayload, fromID proto.PeerID, id *crypto.Identity, m *mesh.Mesh, s *sender, sess *peerSession) (*webrtc.PeerConnection, error) {
-	pc, err := newPC()
+	pc, err := newPC(m.ICEServers)
 	if err != nil {
 		return nil, err
 	}
@@ -618,10 +618,9 @@ func hashNetName(name string) string {
 	return hex.EncodeToString(h[:])
 }
 
-func newPC() (*webrtc.PeerConnection, error) {
+func newPC(extra []webrtc.ICEServer) (*webrtc.PeerConnection, error) {
-	return webrtc.NewPeerConnection(webrtc.Configuration{
+	servers := append([]webrtc.ICEServer{{URLs: []string{"stun:stun.l.google.com:19302"}}}, extra...)
-		ICEServers: []webrtc.ICEServer{{URLs: []string{"stun:stun.l.google.com:19302"}}},
+	return webrtc.NewPeerConnection(webrtc.Configuration{ICEServers: servers})
-	})
 }
 
 func boolPtr(b bool) *bool       { return &b }

internal/crypto/crypto.go

@@ -131,6 +131,9 @@ func (id *Identity) PeerInfo() proto.PeerInfo {
 	}
 }
 
+// PeerIDHex satisfies the invite.Signer interface.
+func (id *Identity) PeerIDHex() string { return string(id.PeerID()) }
+
 // Sign signs data with our Ed25519 private key. Returns hex-encoded signature.
 func (id *Identity) Sign(data []byte) string {
 	sig := ed25519.Sign(id.privateKey, data)

internal/invite/invite.go

@@ -6,6 +6,11 @@
 // 64-char hex SHA-256("yaw2-net:"+name) hash that yaw2 clients pass directly
 // to the signaling server. A yaw2 client that can parse the base64 JSON can join
 // the same network without knowing the plaintext name.
+//
+// Signed invites (waste-go extension): when `inviter` and `sig` are present,
+// the invite was issued by a known peer. Receiving peers that enforce
+// RequireInvite will reject hellos that carry no valid signed invite.
+// YAW/2-only peers ignore both fields.
 package invite
 
 import (
@@ -21,29 +26,69 @@ const prefix = "waste:"
 
 // Invite holds the information needed to join a network.
 type Invite struct {
-	Anchor  string `json:"anchor"`           // WebSocket anchor URL
+	Anchor  string `json:"anchor"`            // WebSocket anchor URL
-	Network string `json:"network"`          // plaintext network name
+	Network string `json:"network"`           // plaintext network name
-	Net     string `json:"net,omitempty"`    // 64-char hex SHA-256("yaw2-net:"+name) — yaw2 `net` field
+	Net     string `json:"net,omitempty"`     // 64-char hex SHA-256("yaw2-net:"+name) — yaw2 `net` field
+	Inviter string `json:"inviter,omitempty"` // hex Ed25519 pubkey of the signing peer (waste-go extension)
+	Sig     string `json:"sig,omitempty"`     // hex Ed25519 sig over canonical payload (waste-go extension)
 }
 
-// Encode returns a waste: invite string for the given anchor URL and network name.
+// IsSigned reports whether the invite carries a signature.
+func (inv Invite) IsSigned() bool { return inv.Inviter != "" && inv.Sig != "" }
+
+// Signer can sign data and report its own peer ID.
+type Signer interface {
+	Sign(data []byte) string
+	PeerIDHex() string
+}
+
+// Verifier verifies an Ed25519 signature given a hex public key.
+type Verifier func(publicKeyHex string, data []byte, sigHex string) error
+
+// Encode returns an unsigned waste: invite string (backward compatible).
 func Encode(anchor, network string) (string, error) {
+	return marshal(Invite{
+		Anchor:  anchor,
+		Network: network,
+		Net:     NetHash(network),
+	})
+}
+
+// EncodeSigned returns a signed waste: invite string.
+// The signature covers: anchor + NUL + network + NUL + net + NUL + inviter.
+func EncodeSigned(anchor, network string, signer Signer) (string, error) {
 	if anchor == "" {
 		return "", fmt.Errorf("anchor URL is required")
 	}
 	if network == "" {
 		return "", fmt.Errorf("network name is required")
 	}
-	h := sha256.Sum256([]byte("yaw2-net:" + network))
+	inviter := signer.PeerIDHex()
-	b, err := json.Marshal(Invite{
+	net := NetHash(network)
+	sig := signer.Sign(sigPayload(anchor, network, net, inviter))
+	return marshal(Invite{
 		Anchor:  anchor,
 		Network: network,
-		Net:     hex.EncodeToString(h[:]),
+		Net:     net,
+		Inviter: inviter,
+		Sig:     sig,
 	})
-	if err != nil {
+}
-		return "", err
+
+// Verify checks the invite signature and that the inviter is in the trusted set.
+// Unsigned invites return nil — the caller decides whether to accept them.
+func Verify(inv Invite, trusted map[string]bool, verify Verifier) error {
+	if !inv.IsSigned() {
+		return nil
 	}
-	return prefix + base64.URLEncoding.EncodeToString(b), nil
+	payload := sigPayload(inv.Anchor, inv.Network, inv.Net, inv.Inviter)
+	if err := verify(inv.Inviter, payload, inv.Sig); err != nil {
+		return fmt.Errorf("invite signature invalid: %w", err)
+	}
+	if !trusted[inv.Inviter] {
+		return fmt.Errorf("invite signed by unknown peer %s", inv.Inviter[:16])
+	}
+	return nil
 }
 
 // Decode parses a waste: invite string and returns the Invite.
@@ -66,9 +111,20 @@ func Decode(s string) (Invite, error) {
 	return inv, nil
 }
 
-// NetHash returns the full 64-char hex network hash for the given name
+// NetHash returns the full 64-char hex network hash for the given name.
-// (SHA-256("yaw2-net:" + name)). This is the `net` field sent to the anchor.
 func NetHash(name string) string {
 	h := sha256.Sum256([]byte("yaw2-net:" + name))
 	return hex.EncodeToString(h[:])
 }
+
+func marshal(inv Invite) (string, error) {
+	b, err := json.Marshal(inv)
+	if err != nil {
+		return "", err
+	}
+	return prefix + base64.URLEncoding.EncodeToString(b), nil
+}
+
+func sigPayload(anchor, network, net, inviter string) []byte {
+	return []byte(anchor + "\x00" + network + "\x00" + net + "\x00" + inviter)
+}

internal/ipc/ipc.go

@@ -15,6 +15,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"strings"
 	"time"
 
 	"nhooyr.io/websocket"
@@ -23,6 +24,7 @@ import (
 	"github.com/waste-go/internal/invite"
 	"github.com/waste-go/internal/netmgr"
 	"github.com/waste-go/internal/proto"
+	"github.com/waste-go/internal/shares"
 )
 
 // RunWS starts a WebSocket IPC server on 127.0.0.1:wsPort.
@@ -125,6 +127,8 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 
 	// Send initial state snapshot.
 	send(stateSnapshot(mgr))
+	// Send stored history for each room so the UI is populated on connect.
+	sendStoredHistory(mgr, send)
 
 	scanner := bufio.NewScanner(conn)
 	for scanner.Scan() {
@@ -145,7 +149,6 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 			case cmd.NetworkName != "":
 				netID, err = mgr.Join(cmd.NetworkName, cmd.ShareDir)
 			case len(cmd.NetworkHash) == 64:
-				// yaw2-compatible: join by full 64-char hex hash (net field)
 				netID, err = mgr.JoinByHash(cmd.NetworkHash, cmd.ShareDir)
 			default:
 				send(errMsg("join_network: network_name or network_hash (64 hex chars) required"))
@@ -155,7 +158,14 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 				send(errMsg(fmt.Sprintf("join_network: %v", err)))
 				continue
 			}
-			// network_joined event (with share_dir) is emitted by Manager.Join/JoinByHash.
+			if n, ok := mgr.Get(netID); ok {
+				if cmd.RequireInvite {
+					n.Mesh.RequireInvite = true
+				}
+				if cmd.InviteString != "" {
+					n.Mesh.InviteString = cmd.InviteString
+				}
+			}
 			_ = netID
 
 		case proto.CmdLeaveNetwork:
@@ -206,6 +216,7 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 			} else {
 				// Group chat → spec "chat" type: flat {type, mid, room, text, ts}
 				mid := randomHex(16)
+				msgID := proto.ComputeMsgID(n.Identity.PeerID(), cmd.Room, ts, cmd.Body)
 				wire, err := json.Marshal(proto.PeerMessage{
 					Type: proto.MsgChat,
 					Mid:  mid,
@@ -218,11 +229,12 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 				}
 				n.Mesh.Broadcast(wire)
 				local := &proto.ChatMessage{
-					Mid:  mid,
+					Mid:   mid,
-					From: n.Identity.PeerID(),
+					MsgID: msgID,
-					Room: cmd.Room,
+					From:  n.Identity.PeerID(),
-					Text: cmd.Body,
+					Room:  cmd.Room,
-					Ts:   ts,
+					Text:  cmd.Body,
+					Ts:    ts,
 				}
 				n.Mesh.SaveMessage(local)
 				n.Mesh.Emit(proto.IpcMessage{
@@ -232,6 +244,23 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 				})
 			}
 
+		case proto.CmdCreateRoom:
+			n := mgr.Resolve(cmd.NetworkID)
+			if n == nil {
+				send(errMsg("create_room: not joined to any network"))
+				continue
+			}
+			name := strings.TrimSpace(cmd.Room)
+			if name == "" || name == "general" {
+				send(errMsg("create_room: room name is required and cannot be 'general'"))
+				continue
+			}
+			if err := n.Store.SaveRoom(name); err != nil {
+				send(errMsg(fmt.Sprintf("create_room: %v", err)))
+				continue
+			}
+			send(proto.IpcMessage{Type: proto.EvtRoomCreated, NetworkID: n.ID, Room: name})
+
 		case proto.CmdGetState:
 			send(stateSnapshot(mgr))
 
@@ -246,7 +275,7 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 					Type:      proto.EvtFileList,
 					NetworkID: n.ID,
 					PeerID:    ptr(n.Identity.PeerID()),
-					Files:     n.Mesh.ScanShareDir(),
+					Files:     mgr.ScanAllShares(n.ID),
 				})
 			} else {
 				req, err := json.Marshal(proto.PeerMessage{Type: proto.MsgFileListReq})
@@ -258,6 +287,35 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 				}
 			}
 
+		case proto.CmdAddShare:
+			if cmd.Path == "" {
+				send(errMsg("add_share: path is required"))
+				continue
+			}
+			networks := cmd.ShareNetworks
+			if len(networks) == 0 {
+				networks = []string{"*"}
+			}
+			if err := mgr.Shares.Add(shares.Share{Path: cmd.Path, Networks: networks}); err != nil {
+				send(errMsg(fmt.Sprintf("add_share: %v", err)))
+				continue
+			}
+			send(sharesListMsg(mgr))
+
+		case proto.CmdRemoveShare:
+			if cmd.Path == "" {
+				send(errMsg("remove_share: path is required"))
+				continue
+			}
+			if err := mgr.Shares.Remove(cmd.Path); err != nil {
+				send(errMsg(fmt.Sprintf("remove_share: %v", err)))
+				continue
+			}
+			send(sharesListMsg(mgr))
+
+		case proto.CmdListShares:
+			send(sharesListMsg(mgr))
+
 		case proto.CmdGenerateInvite:
 			n := mgr.Resolve(cmd.NetworkID)
 			if n == nil {
@@ -268,15 +326,15 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 				send(errMsg("generate_invite: daemon was started without -anchor flag"))
 				continue
 			}
-			inv, err := invite.Encode(mgr.AnchorURL(), n.Name)
+			inv, err := invite.EncodeSigned(mgr.AnchorURL(), n.Name, n.Identity)
 			if err != nil {
 				send(errMsg(fmt.Sprintf("generate_invite: %v", err)))
 				continue
 			}
 			send(proto.IpcMessage{
-				Type:         proto.EvtInviteGenerated,
+				Type:            proto.EvtInviteGenerated,
-				NetworkID:    n.ID,
+				NetworkID:       n.ID,
-				InviteString: inv,
+				InviteGenerated: inv,
 			})
 
 		case proto.CmdSetShareDir:
@@ -290,6 +348,22 @@ func handleClient(conn net.Conn, mgr *netmgr.Manager) {
 				continue
 			}
 
+		case proto.CmdSetDownloadDir:
+			n := mgr.Resolve(cmd.NetworkID)
+			if n == nil {
+				send(errMsg("set_download_dir: not joined to any network"))
+				continue
+			}
+			if cmd.Path == "" {
+				send(errMsg("set_download_dir: path is required"))
+				continue
+			}
+			if !mgr.SetDownloadDir(n.ID, cmd.Path) {
+				send(errMsg("set_download_dir: network not found"))
+				continue
+			}
+			send(stateSnapshot(mgr))
+
 		case proto.CmdSendFile:
 			n := mgr.Resolve(cmd.NetworkID)
 			if n == nil {
@@ -380,15 +454,76 @@ func stateSnapshot(mgr *netmgr.Manager) proto.IpcMessage {
 		pi := all[0].Identity.PeerInfo()
 		msg.LocalPeer = &pi
 		msg.ConnectedPeers = all[0].Mesh.ConnectedPeers()
+		if extra, err := all[0].Store.Rooms(); err == nil {
+			for _, r := range extra {
+				msg.Rooms = append(msg.Rooms, r)
+			}
+		}
+		// Include all historically-known peers so the UI can resolve aliases in history.
+		if known, err := all[0].Store.KnownPeers(); err == nil {
+			connected := map[proto.PeerID]bool{}
+			for _, p := range msg.ConnectedPeers {
+				connected[p.ID] = true
+			}
+			for id, alias := range known {
+				if connected[id] {
+					continue // already in ConnectedPeers
+				}
+				msg.KnownPeers = append(msg.KnownPeers, proto.PeerInfo{
+					ID:    id,
+					Alias: alias,
+				})
+			}
+		}
 	}
 
 	return msg
 }
 
+// sendStoredHistory pushes recent messages for all known rooms to a newly-connected IPC client.
+func sendStoredHistory(mgr *netmgr.Manager, send func(proto.IpcMessage)) {
+	all := mgr.All()
+	if len(all) == 0 {
+		return
+	}
+	n := all[0] // use first network; multi-network history follows same pattern
+	if n.Store == nil {
+		return
+	}
+	rooms := []string{"general"}
+	if extra, err := n.Store.Rooms(); err == nil {
+		rooms = append(rooms, extra...)
+	}
+	for _, room := range rooms {
+		msgs, err := n.Store.RecentMessagesSince(room, 0, 200)
+		if err != nil || len(msgs) == 0 {
+			continue
+		}
+		send(proto.IpcMessage{
+			Type:      proto.EvtHistoryLoaded,
+			NetworkID: n.ID,
+			Room:      room,
+			Messages:  msgs,
+		})
+	}
+}
+
 func errMsg(s string) proto.IpcMessage {
 	return proto.IpcMessage{Type: proto.EvtError, ErrorMessage: s}
 }
 
+func sharesListMsg(mgr *netmgr.Manager) proto.IpcMessage {
+	all := mgr.Shares.All()
+	entries := make([]proto.ShareEntry, len(all))
+	for i, sh := range all {
+		entries[i] = proto.ShareEntry{Path: sh.Path, Networks: sh.Networks}
+	}
+	return proto.IpcMessage{Type: proto.EvtSharesList, Shares: entries}
+}
+
+// ensure shares import is used
+var _ = shares.Share{}
+
 func ptr[T any](v T) *T { return &v }
 
 func randomHex(n int) string {

internal/mesh/mesh.go

@@ -2,6 +2,7 @@
 package mesh
 
 import (
+	"encoding/json"
 	"log"
 	"os"
 	"sync"
@@ -13,6 +14,9 @@ import (
 	"github.com/waste-go/internal/store"
 )
 
+// ICEServer mirrors webrtc.ICEServer so callers don't import pion directly.
+type ICEServer = webrtc.ICEServer
+
 // PeerConn is a live connection to one peer.
 type PeerConn struct {
 	Info proto.PeerInfo
@@ -27,8 +31,14 @@ type PeerConn struct {
 type Mesh struct {
 	Identity    *crypto.Identity
 	Store       *store.Store // may be nil if persistence is disabled
-	ShareDir    string       // directory whose contents are shared with peers; "" = no sharing
+	ShareDir      string // directory whose contents are shared with peers; "" = no sharing
-	DownloadDir string       // directory where received files are saved
+	DownloadDir   string // directory where received files are saved
+	RequireInvite bool   // waste-go ext: reject peers that present no valid signed invite
+	InviteString  string // the invite this peer used to join (sent in hello to other peers)
+	// ScanFiles overrides ScanShareDir when set — allows the manager to inject
+	// multi-share scanning without the mesh needing to know about shares.json.
+	ScanFiles  func() []proto.FileEntry
+	ICEServers []ICEServer // extra ICE servers (e.g. TURN); appended to the default STUN entry
 
 	mu    sync.RWMutex
 	peers map[proto.PeerID]*PeerConn
@@ -42,6 +52,12 @@ type Mesh struct {
 	// attempt to connect to. Drained by the anchor client's runOnce loop.
 	PendingConnect chan proto.PeerID
 
+	// historyRequested tracks rooms for which we have already sent a history_request
+	// this session. Reset on reconnect is intentional (new peers may have newer history).
+	historyMu        sync.Mutex
+	historyRequested map[string]bool // room → true
+	historyFirstPeer proto.PeerID    // ID of the peer we requested history from
+
 	// subscribers receive a copy of every event (fan-out to IPC clients)
 	subMu sync.Mutex
 	subs  []chan proto.IpcMessage
@@ -51,15 +67,39 @@ type Mesh struct {
 // Pass a non-nil store to enable message and peer persistence.
 func New(id *crypto.Identity, st *store.Store) *Mesh {
 	return &Mesh{
-		Identity:       id,
+		Identity:         id,
-		Store:          st,
+		Store:            st,
-		peers:          make(map[proto.PeerID]*PeerConn),
+		peers:            make(map[proto.PeerID]*PeerConn),
-		outbound:       make(map[string]*outboundTransfer),
+		outbound:         make(map[string]*outboundTransfer),
-		inbound:        make(map[string]*inboundTransfer),
+		inbound:          make(map[string]*inboundTransfer),
-		PendingConnect: make(chan proto.PeerID, 32),
+		PendingConnect:   make(chan proto.PeerID, 32),
+		historyRequested: make(map[string]bool),
 	}
 }
 
+// trustedPeerIDs returns a set of peer IDs trusted on this network:
+// all currently connected peers plus all peers in the persistent store.
+func (m *Mesh) trustedPeerIDs() map[string]bool {
+	trusted := map[string]bool{}
+	// Own identity is always trusted.
+	trusted[string(m.Identity.PeerID())] = true
+	// Connected peers.
+	m.mu.RLock()
+	for id := range m.peers {
+		trusted[string(id)] = true
+	}
+	m.mu.RUnlock()
+	// Previously seen peers from the store.
+	if m.Store != nil {
+		if known, err := m.Store.KnownPeers(); err == nil {
+			for id := range known {
+				trusted[string(id)] = true
+			}
+		}
+	}
+	return trusted
+}
+
 // ScanShareDir returns the list of files in the local share directory.
 // Returns an empty slice if ShareDir is unset or the directory is empty.
 func (m *Mesh) ScanShareDir() []proto.FileEntry {
@@ -203,6 +243,122 @@ func (m *Mesh) Unsubscribe(ch <-chan proto.IpcMessage) {
 	}
 }
 
+// RequestHistoryFrom sends history_request messages to peerID for all rooms
+// we know about but haven't yet requested this session. Only contacts the first
+// peer we connect to, to avoid fan-out amplification.
+func (m *Mesh) RequestHistoryFrom(peerID proto.PeerID) {
+	if m.Store == nil {
+		return
+	}
+	m.historyMu.Lock()
+	if m.historyFirstPeer != "" && m.historyFirstPeer != peerID {
+		m.historyMu.Unlock()
+		return // only request from the first peer
+	}
+	m.historyFirstPeer = peerID
+	m.historyMu.Unlock()
+
+	rooms, err := m.Store.Rooms()
+	if err != nil {
+		return
+	}
+	// Always include "general" even if not explicitly created.
+	roomSet := map[string]bool{"general": true}
+	for _, r := range rooms {
+		roomSet[r] = true
+	}
+
+	m.historyMu.Lock()
+	var toRequest []string
+	for r := range roomSet {
+		if !m.historyRequested[r] {
+			m.historyRequested[r] = true
+			toRequest = append(toRequest, r)
+		}
+	}
+	m.historyMu.Unlock()
+
+	for _, room := range toRequest {
+		req, err := json.Marshal(proto.PeerMessage{
+			Type:  proto.MsgHistoryRequest,
+			Room:  room,
+			Limit: 200,
+		})
+		if err != nil {
+			continue
+		}
+		m.SendTo(peerID, req)
+		log.Printf("mesh: sent history_request room=%s to %s", room, peerID.Short())
+	}
+}
+
+// HandleHistoryRequest responds to a history_request from a peer.
+func (m *Mesh) HandleHistoryRequest(from proto.PeerID, room string, sinceMs int64, limit int) {
+	if m.Store == nil {
+		return
+	}
+	msgs, err := m.Store.RecentMessagesSince(room, sinceMs, limit)
+	if err != nil {
+		log.Printf("mesh: history_request from %s room=%s: %v", from.Short(), room, err)
+		return
+	}
+
+	// Look up aliases for from_peer values.
+	entries := make([]proto.HistoryEntry, 0, len(msgs))
+	for _, msg := range msgs {
+		entries = append(entries, proto.HistoryEntry{
+			Mid:       msg.Mid,
+			From:      string(msg.From),
+			FromAlias: m.Store.PeerAlias(msg.From),
+			Text:      msg.Text,
+			Ts:        msg.Ts,
+		})
+	}
+
+	chunk, err := json.Marshal(proto.PeerMessage{
+		Type:        proto.MsgHistoryChunk,
+		Room:        room,
+		History:     entries,
+		HistoryDone: true,
+	})
+	if err != nil {
+		return
+	}
+	m.SendTo(from, chunk)
+	log.Printf("mesh: sent history_chunk room=%s to %s: %d msgs", room, from.Short(), len(entries))
+}
+
+// HandleHistoryChunk saves received history messages and emits history_loaded.
+func (m *Mesh) HandleHistoryChunk(room string, entries []proto.HistoryEntry) {
+	if m.Store == nil || len(entries) == 0 {
+		return
+	}
+	var saved []proto.ChatMessage
+	for _, e := range entries {
+		msg := &proto.ChatMessage{
+			Mid:   e.Mid,
+			MsgID: e.Mid, // mid is already content-addressed for gossipped messages
+			From:  proto.PeerID(e.From),
+			Room:  room,
+			Text:  e.Text,
+			Ts:    e.Ts,
+		}
+		if err := m.Store.SaveMessage(msg); err != nil {
+			continue
+		}
+		saved = append(saved, *msg)
+	}
+	if len(saved) == 0 {
+		return
+	}
+	m.emit(proto.IpcMessage{
+		Type:     proto.EvtHistoryLoaded,
+		Room:     room,
+		Messages: saved,
+	})
+	log.Printf("mesh: history_chunk room=%s: %d/%d new messages", room, len(saved), len(entries))
+}
+
 // Emit sends an event to all IPC subscribers (exported for ipc/nat packages).
 func (m *Mesh) Emit(msg proto.IpcMessage) {
 	m.emit(msg)

internal/mesh/peer.go

@@ -5,6 +5,7 @@ import (
 	"crypto/rand"
 	"encoding/hex"
 	"encoding/json"
+	"fmt"
 	"log"
 	"strings"
 	"sync"
@@ -13,6 +14,7 @@ import (
 	"github.com/pion/webrtc/v3"
 
 	"github.com/waste-go/internal/crypto"
+	"github.com/waste-go/internal/invite"
 	"github.com/waste-go/internal/proto"
 )
 
@@ -42,11 +44,12 @@ func WireDataChannel(
 		localFP, remoteFP := dtlsFingerprints(pc)
 		bindBytes := proto.HelloBindString(localFP, remoteFP)
 		hello := proto.HelloMessage{
-			Type: "hello",
+			Type:   "hello",
-			ID:   string(id.PeerID()),
+			ID:     string(id.PeerID()),
-			Nick: id.Alias,
+			Nick:   id.Alias,
-			Caps: []string{"chat", "file"},
+			Caps:   []string{"chat", "file"},
-			Sig:  id.Sign(bindBytes),
+			Sig:    id.Sign(bindBytes),
+			Invite: m.InviteString,
 		}
 		helloJSON, _ := json.Marshal(hello)
 		if err := dc.SendText(string(helloJSON)); err != nil {
@@ -94,6 +97,17 @@ func WireDataChannel(
 		m.RemovePeer(peerID)
 		pc.Close()
 	})
+
+	pc.OnConnectionStateChange(func(state webrtc.PeerConnectionState) {
+		m.Emit(proto.IpcMessage{
+			Type:      proto.EvtPeerStatus,
+			PeerID:    &peerID,
+			ConnState: state.String(),
+		})
+		if state == webrtc.PeerConnectionStateConnected {
+			go emitICEStats(pc, peerID, m)
+		}
+	})
 }
 
 // WireCandidateTrickle seals and forwards each ICE candidate via the anchor as it arrives.
@@ -137,6 +151,37 @@ func handleDCMessage(data []byte, from proto.PeerID, localID *crypto.Identity, m
 			log.Printf("peer: bad hello from %s: %v", from.Short(), err)
 			return
 		}
+
+		// Invite enforcement (waste-go extension).
+		if m.RequireInvite {
+			if hello.Invite == "" {
+				log.Printf("peer: rejecting %s — no invite presented (RequireInvite=true)", from.Short())
+				m.Emit(proto.IpcMessage{
+					Type:         proto.EvtError,
+					ErrorMessage: fmt.Sprintf("peer %s rejected: no invite", from.Short()),
+				})
+				return
+			}
+			inv, err := invite.Decode(hello.Invite)
+			if err != nil || !inv.IsSigned() {
+				log.Printf("peer: rejecting %s — invite not signed: %v", from.Short(), err)
+				m.Emit(proto.IpcMessage{
+					Type:         proto.EvtError,
+					ErrorMessage: fmt.Sprintf("peer %s rejected: invite not signed", from.Short()),
+				})
+				return
+			}
+			trusted := m.trustedPeerIDs()
+			if err := invite.Verify(inv, trusted, crypto.Verify); err != nil {
+				log.Printf("peer: rejecting %s — %v", from.Short(), err)
+				m.Emit(proto.IpcMessage{
+					Type:         proto.EvtError,
+					ErrorMessage: fmt.Sprintf("peer %s rejected: %v", from.Short(), err),
+				})
+				return
+			}
+		}
+
 		// Update alias once we have the verified nick.
 		m.mu.Lock()
 		if conn, ok := m.peers[from]; ok {
@@ -152,6 +197,8 @@ func handleDCMessage(data []byte, from proto.PeerID, localID *crypto.Identity, m
 		})
 		// Tell the new peer about everyone we can currently see.
 		go m.sendGossipTo(from)
+		// Request message history from this peer (EXT-007).
+		go m.RequestHistoryFrom(from)
 		return
 	}
 
@@ -167,11 +214,12 @@ func dispatchPeerMessage(msg proto.PeerMessage, from proto.PeerID, m *Mesh) {
 	switch msg.Type {
 	case proto.MsgChat:
 		chat := &proto.ChatMessage{
-			Mid:  midOrRandom(msg.Mid),
+			Mid:   midOrRandom(msg.Mid),
-			From: from,
+			MsgID: proto.ComputeMsgID(from, msg.Room, msg.Ts, msg.Text),
-			Room: msg.Room,
+			From:  from,
-			Text: msg.Text,
+			Room:  msg.Room,
-			Ts:   msg.Ts,
+			Text:  msg.Text,
+			Ts:    msg.Ts,
 		}
 		m.SaveMessage(chat)
 		m.Emit(proto.IpcMessage{Type: proto.EvtMessageReceived, Message: chat})
@@ -189,7 +237,12 @@ func dispatchPeerMessage(msg proto.PeerMessage, from proto.PeerID, m *Mesh) {
 		m.Emit(proto.IpcMessage{Type: proto.EvtMessageReceived, Message: chat})
 
 	case proto.MsgFileListReq:
-		files := m.ScanShareDir()
+		var files []proto.FileEntry
+		if m.ScanFiles != nil {
+			files = m.ScanFiles()
+		} else {
+			files = m.ScanShareDir()
+		}
 		resp, err := json.Marshal(proto.PeerMessage{
 			Type:         proto.MsgFileListResp,
 			FileListResp: &proto.FileListResp{Files: files},
@@ -217,7 +270,7 @@ func dispatchPeerMessage(msg proto.PeerMessage, from proto.PeerID, m *Mesh) {
 		m.acceptIncoming(msg, from)
 
 	case proto.MsgFileAccept:
-		m.startSend(msg.Xid, from)
+		m.startSend(msg.Xid, from, msg.ResumeOffset)
 
 	case proto.MsgFileCancel:
 		log.Printf("mesh: file-cancel from %s xid=%s reason=%s", from.Short(), msg.Xid, msg.Reason)
@@ -248,6 +301,12 @@ func dispatchPeerMessage(msg proto.PeerMessage, from proto.PeerID, m *Mesh) {
 			}
 		}
 		log.Printf("mesh: gossip from %s: %d hints, %d new", from.Short(), len(msg.Gossip.Peers), newPeers)
+	case proto.MsgHistoryRequest:
+		go m.HandleHistoryRequest(from, msg.Room, msg.Since, msg.Limit)
+
+	case proto.MsgHistoryChunk:
+		go m.HandleHistoryChunk(msg.Room, msg.History)
+
 	case proto.MsgPing:
 		log.Printf("mesh: ping from %s", from.Short())
 	case proto.MsgPong:
@@ -257,6 +316,42 @@ func dispatchPeerMessage(msg proto.PeerMessage, from proto.PeerID, m *Mesh) {
 	}
 }
 
+// emitICEStats reads the active (nominated) ICE candidate pair from pion's stats
+// and emits a peer_status event with the candidate type and remote address.
+func emitICEStats(pc *webrtc.PeerConnection, peerID proto.PeerID, m *Mesh) {
+	stats := pc.GetStats()
+	candidateType := "unknown"
+	remoteAddress := ""
+
+	// Find the nominated candidate pair and its remote candidate.
+	for _, s := range stats {
+		pair, ok := s.(webrtc.ICECandidatePairStats)
+		if !ok || !pair.Nominated {
+			continue
+		}
+		// Look up remote candidate by its ID.
+		if rc, ok2 := stats[pair.RemoteCandidateID]; ok2 {
+			remote, ok3 := rc.(webrtc.ICECandidateStats)
+			if ok3 {
+				candidateType = remote.CandidateType.String()
+				if remote.Port > 0 {
+					remoteAddress = fmt.Sprintf("%s:%d", remote.IP, remote.Port)
+				} else {
+					remoteAddress = remote.IP
+				}
+			}
+		}
+		break
+	}
+
+	m.Emit(proto.IpcMessage{
+		Type:          proto.EvtPeerStatus,
+		PeerID:        &peerID,
+		CandidateType: candidateType,
+		RemoteAddress: remoteAddress,
+	})
+}
+
 // midOrRandom returns mid if non-empty, otherwise generates a random 16-byte hex string.
 // Ensures every stored message has a unique mid even from peers that don't send one.
 func midOrRandom(mid string) string {

internal/mesh/transfer.go

@@ -33,14 +33,103 @@ type outboundTransfer struct {
 }
 
 type inboundTransfer struct {
-	from    proto.PeerID
+	from         proto.PeerID
-	name    string
+	name         string
-	size    int64
+	size         int64
-	sha256  string
+	sha256       string
-	mu      sync.Mutex
+	mu           sync.Mutex
-	tmp     *os.File
+	tmp          *os.File
-	hasher  hash.Hash
+	hasher       hash.Hash
-	written int64
+	written      int64  // total bytes received; starts at resumeOffset when resuming
+	resumePath   string // path to existing .tmp when resuming; empty for new transfers
+	resumeOffset int64  // bytes already present in resumePath
+	metaPath     string // path to the .tmp.meta sidecar
+}
+
+// partialMeta is written as a JSON sidecar alongside each in-progress .tmp file.
+// It survives interruptions so the receiver can resume later.
+type partialMeta struct {
+	Name   string `json:"name"`
+	SHA256 string `json:"sha256"`
+	From   string `json:"from"`
+	Size   int64  `json:"size"`
+}
+
+// findPartial scans dir for a .tmp.meta sidecar whose sha256 matches.
+// Returns (tmpPath, metaPath, offset) — all empty/zero if no match.
+func findPartial(dir, sha256hex string) (tmpPath, metaPath string, offset int64) {
+	metas, _ := filepath.Glob(filepath.Join(dir, "*.tmp.meta"))
+	for _, mp := range metas {
+		data, err := os.ReadFile(mp)
+		if err != nil {
+			continue
+		}
+		var m partialMeta
+		if err := json.Unmarshal(data, &m); err != nil {
+			continue
+		}
+		if m.SHA256 != sha256hex {
+			continue
+		}
+		tp := strings.TrimSuffix(mp, ".meta")
+		info, err := os.Stat(tp)
+		if err != nil {
+			continue
+		}
+		return tp, mp, info.Size()
+	}
+	return "", "", 0
+}
+
+func writePartialMeta(path string, t *inboundTransfer) {
+	data, _ := json.Marshal(partialMeta{
+		Name:   t.name,
+		SHA256: t.sha256,
+		From:   string(t.from),
+		Size:   t.size,
+	})
+	os.WriteFile(path, data, 0o644) //nolint:errcheck
+}
+
+// ScanResumable scans the download directory for .tmp.meta sidecars left by
+// interrupted transfers and emits a resumable_transfers IPC event listing them.
+// Called once after a network is joined so the UI can show pending transfers.
+func (m *Mesh) ScanResumable() {
+	if m.DownloadDir == "" {
+		return
+	}
+	metas, _ := filepath.Glob(filepath.Join(m.DownloadDir, "*.tmp.meta"))
+	var files []proto.ResumableFile
+	for _, mp := range metas {
+		data, err := os.ReadFile(mp)
+		if err != nil {
+			continue
+		}
+		var meta partialMeta
+		if err := json.Unmarshal(data, &meta); err != nil {
+			continue
+		}
+		tp := strings.TrimSuffix(mp, ".meta")
+		info, err := os.Stat(tp)
+		if err != nil {
+			continue
+		}
+		files = append(files, proto.ResumableFile{
+			Name:   meta.Name,
+			SHA256: meta.SHA256,
+			From:   meta.From,
+			Size:   meta.Size,
+			Offset: info.Size(),
+		})
+	}
+	if len(files) == 0 {
+		return
+	}
+	m.emit(proto.IpcMessage{
+		Type:           proto.EvtResumableTransfers,
+		ResumableFiles: files,
+	})
+	log.Printf("transfer: %d resumable transfer(s) found in %s", len(files), m.DownloadDir)
 }
 
 // OfferFile reads filename from ShareDir, computes its SHA-256, and sends a
@@ -102,28 +191,49 @@ func (m *Mesh) OfferFile(peerID proto.PeerID, filename string) error {
 }
 
 // acceptIncoming is called when we receive file-offer from a peer.
-// It stores the inbound state and immediately sends file-accept (auto-accept).
+// Checks for a resumable partial download matching the offer's sha256.
+// Sends file-accept immediately, with a non-zero resume_offset when resuming.
 func (m *Mesh) acceptIncoming(msg proto.PeerMessage, from proto.PeerID) {
-	m.transferMu.Lock()
+	t := &inboundTransfer{
-	m.inbound[msg.Xid] = &inboundTransfer{
 		from:   from,
 		name:   msg.Name,
 		size:   msg.Size,
 		sha256: msg.SHA256,
 	}
+
+	var resumeOffset int64
+	if m.DownloadDir != "" {
+		if tp, mp, off := findPartial(m.DownloadDir, msg.SHA256); tp != "" {
+			t.resumePath = tp
+			t.metaPath = mp
+			t.resumeOffset = off
+			t.written = off
+			resumeOffset = off
+			log.Printf("transfer: found partial for %s at %s (%d/%d bytes)", msg.Name, tp, off, msg.Size)
+		}
+	}
+
+	m.transferMu.Lock()
+	m.inbound[msg.Xid] = t
 	m.transferMu.Unlock()
 
 	accept, _ := json.Marshal(proto.PeerMessage{
-		Type: proto.MsgFileAccept,
+		Type:         proto.MsgFileAccept,
-		Xid:  msg.Xid,
+		Xid:          msg.Xid,
+		ResumeOffset: resumeOffset,
 	})
 	m.SendTo(from, accept)
-	log.Printf("transfer: auto-accepted %s (%d bytes) from %s xid=%s", msg.Name, msg.Size, from.Short(), msg.Xid[:8])
+	if resumeOffset > 0 {
+		log.Printf("transfer: resuming %s from byte %d xid=%s", msg.Name, resumeOffset, msg.Xid[:8])
+	} else {
+		log.Printf("transfer: auto-accepted %s (%d bytes) from %s xid=%s", msg.Name, msg.Size, from.Short(), msg.Xid[:8])
+	}
 }
 
 // startSend opens the binary DataChannel "f:<xid>" and streams the file.
-// Called when we receive file-accept from the peer.
+// Called when we receive file-accept from the peer. resumeOffset is non-zero
-func (m *Mesh) startSend(xid string, from proto.PeerID) {
+// when the receiver is resuming a previous partial download.
+func (m *Mesh) startSend(xid string, from proto.PeerID, resumeOffset int64) {
 	m.transferMu.Lock()
 	t, ok := m.outbound[xid]
 	m.transferMu.Unlock()
@@ -156,13 +266,13 @@ func (m *Mesh) startSend(xid string, from proto.PeerID) {
 	dc.OnOpen(func() {
 		dc.OnMessage(func(msg webrtc.DataChannelMessage) {
 			if msg.IsString && string(msg.Data) == "ok" {
-				go m.sendFileChunks(dc, t, xid)
+				go m.sendFileChunks(dc, t, xid, resumeOffset)
 			}
 		})
 	})
 }
 
-func (m *Mesh) sendFileChunks(dc *webrtc.DataChannel, t *outboundTransfer, xid string) {
+func (m *Mesh) sendFileChunks(dc *webrtc.DataChannel, t *outboundTransfer, xid string, offset int64) {
 	defer func() {
 		m.transferMu.Lock()
 		delete(m.outbound, xid)
@@ -177,6 +287,15 @@ func (m *Mesh) sendFileChunks(dc *webrtc.DataChannel, t *outboundTransfer, xid s
 	}
 	defer f.Close()
 
+	if offset > 0 {
+		if _, err := f.Seek(offset, io.SeekStart); err != nil {
+			log.Printf("transfer: seek to %d xid=%s: %v", offset, xid[:8], err)
+			dc.Close()
+			return
+		}
+		log.Printf("transfer: resuming send from byte %d xid=%s", offset, xid[:8])
+	}
+
 	// Backpressure: block when the DC buffer is full.
 	resume := make(chan struct{}, 1)
 	dc.SetBufferedAmountLowThreshold(fileBufferLowWater)
@@ -188,7 +307,7 @@ func (m *Mesh) sendFileChunks(dc *webrtc.DataChannel, t *outboundTransfer, xid s
 	})
 
 	buf := make([]byte, fileChunkSize)
-	var sent int64
+	sent := offset // start progress reporting from where the receiver left off
 
 	for {
 		n, readErr := f.Read(buf)
@@ -229,8 +348,9 @@ func (m *Mesh) sendFileChunks(dc *webrtc.DataChannel, t *outboundTransfer, xid s
 }
 
 // HandleInboundFileDC is called from the anchor when a "f:<xid>" DataChannel
-// arrives on a PeerConnection. It writes chunks to a temp file, verifies the
+// arrives on a PeerConnection. It writes chunks to a temp file (or resumes an
-// SHA-256 on close, and emits EvtFileComplete.
+// existing partial), verifies the SHA-256 on close, and emits EvtFileComplete.
+// Interrupted transfers keep their .tmp and .meta files for future resume.
 func (m *Mesh) HandleInboundFileDC(dc *webrtc.DataChannel, xid string, from proto.PeerID) {
 	m.transferMu.Lock()
 	t, ok := m.inbound[xid]
@@ -247,16 +367,43 @@ func (m *Mesh) HandleInboundFileDC(dc *webrtc.DataChannel, xid string, from prot
 			log.Printf("transfer: mkdir %s: %v", m.DownloadDir, err)
 			return
 		}
-		tmp, err := os.CreateTemp(m.DownloadDir, "dl-*.tmp")
+
-		if err != nil {
-			log.Printf("transfer: create temp file: %v", err)
-			return
-		}
 		t.mu.Lock()
-		t.tmp = tmp
+		defer t.mu.Unlock()
-		t.hasher = sha256.New()
+
-		t.mu.Unlock()
+		if t.resumePath != "" {
-		log.Printf("transfer: receiving %s xid=%s", t.name, xid[:8])
+			// Resume: open existing .tmp in read-write mode, seek to end for appending.
+			f, err := os.OpenFile(t.resumePath, os.O_RDWR, 0o644)
+			if err != nil {
+				log.Printf("transfer: open resume file %s: %v", t.resumePath, err)
+				return
+			}
+			// Restore the hasher state by re-hashing the bytes already on disk.
+			h := sha256.New()
+			if _, err := f.Seek(0, io.SeekStart); err == nil {
+				io.Copy(h, f) //nolint:errcheck
+			}
+			if _, err := f.Seek(0, io.SeekEnd); err != nil {
+				log.Printf("transfer: seek to end xid=%s: %v", xid[:8], err)
+				f.Close()
+				return
+			}
+			t.tmp = f
+			t.hasher = h
+			log.Printf("transfer: resuming inbound %s at byte %d xid=%s", t.name, t.resumeOffset, xid[:8])
+		} else {
+			tmp, err := os.CreateTemp(m.DownloadDir, "dl-*.tmp")
+			if err != nil {
+				log.Printf("transfer: create temp file: %v", err)
+				return
+			}
+			t.tmp = tmp
+			t.hasher = sha256.New()
+			t.metaPath = tmp.Name() + ".meta"
+			writePartialMeta(t.metaPath, t)
+			log.Printf("transfer: receiving %s xid=%s", t.name, xid[:8])
+		}
+
 		// Signal sender that we are ready — it will not start streaming until
 		// it receives this, guaranteeing our OnMessage/OnClose are registered first.
 		dc.SendText("ok") //nolint:errcheck
@@ -298,11 +445,12 @@ func (m *Mesh) HandleInboundFileDC(dc *webrtc.DataChannel, xid string, from prot
 	dc.OnClose(func() {
 		t.mu.Lock()
 		tmp := t.tmp
+		metaPath := t.metaPath
 		actualSha := ""
 		if t.hasher != nil {
 			actualSha = hex.EncodeToString(t.hasher.Sum(nil))
 		}
-		name, expectedSha := t.name, t.sha256
+		name, expectedSha, size, written := t.name, t.sha256, t.size, t.written
 		t.mu.Unlock()
 
 		m.transferMu.Lock()
@@ -312,10 +460,21 @@ func (m *Mesh) HandleInboundFileDC(dc *webrtc.DataChannel, xid string, from prot
 		if tmp == nil {
 			return
 		}
+		tmpName := tmp.Name()
 		tmp.Close()
 
+		// Incomplete — keep .tmp and .meta for future resume.
+		if written < size {
+			log.Printf("transfer: interrupted %s at %d/%d bytes xid=%s (resumable)", name, written, size, xid[:8])
+			return
+		}
+
+		// Full receive — verify integrity.
 		if actualSha != expectedSha {
-			os.Remove(tmp.Name())
+			os.Remove(tmpName)
+			if metaPath != "" {
+				os.Remove(metaPath)
+			}
 			log.Printf("transfer: sha256 mismatch xid=%s got=%s want=%s", xid[:8], actualSha[:8], expectedSha[:8])
 			m.Emit(proto.IpcMessage{
 				Type:         proto.EvtError,
@@ -325,13 +484,17 @@ func (m *Mesh) HandleInboundFileDC(dc *webrtc.DataChannel, xid string, from prot
 			return
 		}
 
+		// Success — remove sidecar and move to final path.
+		if metaPath != "" {
+			os.Remove(metaPath)
+		}
 		final := filepath.Join(m.DownloadDir, name)
 		if _, err := os.Stat(final); err == nil {
 			ext := filepath.Ext(name)
 			base := strings.TrimSuffix(name, ext)
 			final = filepath.Join(m.DownloadDir, base+"-"+xid[:8]+ext)
 		}
-		if err := os.Rename(tmp.Name(), final); err != nil {
+		if err := os.Rename(tmpName, final); err != nil {
 			log.Printf("transfer: rename xid=%s: %v", xid[:8], err)
 			return
 		}

internal/netmgr/manager.go

@@ -6,17 +6,26 @@ package netmgr
 
 import (
 	"context"
+	"crypto/hmac"
+	"crypto/sha1"
 	"crypto/sha256"
+	"encoding/base64"
 	"encoding/hex"
 	"fmt"
 	"log"
+	"os"
 	"path/filepath"
+	"strconv"
 	"sync"
+	"time"
+
+	"github.com/pion/webrtc/v3"
 
 	"github.com/waste-go/internal/anchor"
 	"github.com/waste-go/internal/crypto"
 	"github.com/waste-go/internal/mesh"
 	"github.com/waste-go/internal/proto"
+	"github.com/waste-go/internal/shares"
 	"github.com/waste-go/internal/store"
 )
 
@@ -24,8 +33,11 @@ import (
 type Config struct {
 	MasterIdentity *crypto.Identity
 	StoreDir       string // base directory for per-network SQLite files
+	DownloadDir    string // base directory for received files; defaults to StoreDir if empty
 	AnchorURL      string // WebSocket anchor URL used for all networks
 	ShareDir       string // default share directory; overridden per network via Join or SetShareDir
+	TurnURL        string // optional TURN server URL, e.g. "turn:your-vps:3478"
+	TurnSecret     string // shared secret for coturn use-auth-secret HMAC credential
 }
 
 // Network is a single joined network context.
@@ -54,13 +66,22 @@ type Manager struct {
 
 	subsMu sync.Mutex
 	subs   []chan proto.IpcMessage
+
+	Shares *shares.Store // persistent multi-share configuration
 }
 
 // New creates a Manager from the given config.
+// Loads shares.json from StoreDir if it exists.
 func New(cfg Config) *Manager {
+	sh, err := shares.Load(cfg.StoreDir)
+	if err != nil {
+		log.Printf("netmgr: loading shares.json: %v (starting empty)", err)
+		sh, _ = shares.Load("") // fallback to empty
+	}
 	return &Manager{
 		networks: make(map[string]*Network),
 		cfg:      cfg,
+		Shares:   sh,
 	}
 }
 
@@ -99,7 +120,12 @@ func (mgr *Manager) Join(name, shareDir string) (string, error) {
 	} else if mgr.cfg.ShareDir != "" {
 		m.ShareDir = mgr.cfg.ShareDir
 	}
-	m.DownloadDir = filepath.Join(mgr.cfg.StoreDir, "downloads-"+netID_full)
+	m.DownloadDir = filepath.Join(mgr.downloadBase(), "downloads-"+netID_full)
+	capturedNetID := netID
+	m.ScanFiles = func() []proto.FileEntry { return mgr.ScanAllShares(capturedNetID) }
+	if ice := mgr.turnICEServers(); ice != nil {
+		m.ICEServers = ice
+	}
 
 	// Forward all mesh events to the Manager's fan-out, tagging with network_id.
 	meshEvents := m.Subscribe()
@@ -136,6 +162,8 @@ func (mgr *Manager) Join(name, shareDir string) (string, error) {
 		}()
 	}
 
+	go m.ScanResumable()
+
 	mgr.emit(proto.IpcMessage{
 		Type:        proto.EvtNetworkJoined,
 		NetworkID:   netID,
@@ -182,7 +210,12 @@ func (mgr *Manager) JoinByHash(netHash64, shareDir string) (string, error) {
 	} else if mgr.cfg.ShareDir != "" {
 		m.ShareDir = mgr.cfg.ShareDir
 	}
-	m.DownloadDir = filepath.Join(mgr.cfg.StoreDir, "downloads-"+netID)
+	m.DownloadDir = filepath.Join(mgr.downloadBase(), "downloads-"+netID)
+	capturedNetID2 := netID
+	m.ScanFiles = func() []proto.FileEntry { return mgr.ScanAllShares(capturedNetID2) }
+	if ice := mgr.turnICEServers(); ice != nil {
+		m.ICEServers = ice
+	}
 
 	meshEvents := m.Subscribe()
 	go func() {
@@ -218,6 +251,8 @@ func (mgr *Manager) JoinByHash(netHash64, shareDir string) (string, error) {
 		}()
 	}
 
+	go m.ScanResumable()
+
 	mgr.emit(proto.IpcMessage{
 		Type:        proto.EvtNetworkJoined,
 		NetworkID:   netID,
@@ -263,6 +298,28 @@ func (mgr *Manager) SetShareDir(netID, path string) bool {
 	return true
 }
 
+// downloadBase returns the configured download base directory, falling back to StoreDir.
+func (mgr *Manager) downloadBase() string {
+	if mgr.cfg.DownloadDir != "" {
+		return mgr.cfg.DownloadDir
+	}
+	return mgr.cfg.StoreDir
+}
+
+// SetDownloadDir updates the download directory for an already-joined network.
+// Changes take effect for the next incoming file transfer on that network.
+func (mgr *Manager) SetDownloadDir(netID, path string) bool {
+	mgr.mu.RLock()
+	net, ok := mgr.networks[netID]
+	mgr.mu.RUnlock()
+	if !ok {
+		return false
+	}
+	net.Mesh.DownloadDir = path
+	log.Printf("netmgr: download dir for %q set to %q", net.Name, path)
+	return true
+}
+
 // LeaveAll leaves every joined network.
 func (mgr *Manager) LeaveAll() {
 	mgr.mu.RLock()
@@ -313,6 +370,50 @@ func (mgr *Manager) All() []*Network {
 	return out
 }
 
+// ScanAllShares returns file entries from all share roots visible to networkID,
+// combining the network's legacy ShareDir with entries from shares.json.
+func (mgr *Manager) ScanAllShares(netID string) []proto.FileEntry {
+	var files []proto.FileEntry
+
+	// Legacy single-dir share from the network mesh.
+	if n := mgr.Resolve(netID); n != nil {
+		files = append(files, n.Mesh.ScanShareDir()...)
+	}
+
+	// Additional shares from shares.json.
+	if mgr.Shares != nil {
+		for _, sh := range mgr.Shares.ForNetwork(netID) {
+			files = append(files, scanDir(sh.Path)...)
+		}
+	}
+	return files
+}
+
+// scanDir recursively walks a directory and returns FileEntry for each file.
+func scanDir(root string) []proto.FileEntry {
+	var files []proto.FileEntry
+	_ = filepath.WalkDir(root, func(path string, d os.DirEntry, err error) error {
+		if err != nil || d.IsDir() {
+			return nil
+		}
+		info, err := d.Info()
+		if err != nil {
+			return nil
+		}
+		rel, err := filepath.Rel(root, path)
+		if err != nil {
+			rel = d.Name()
+		}
+		files = append(files, proto.FileEntry{
+			Name:      d.Name(),
+			SizeBytes: info.Size(),
+			Path:      rel,
+		})
+		return nil
+	})
+	return files
+}
+
 // AnchorURL returns the configured anchor URL.
 func (mgr *Manager) AnchorURL() string { return mgr.cfg.AnchorURL }
 
@@ -352,6 +453,26 @@ func (mgr *Manager) emit(msg proto.IpcMessage) {
 	}
 }
 
+// turnICEServers returns TURN ICE servers if TurnURL and TurnSecret are set,
+// using coturn's use-auth-secret HMAC-SHA1 time-limited credential scheme.
+// Returns nil if TURN is not configured.
+func (mgr *Manager) turnICEServers() []webrtc.ICEServer {
+	if mgr.cfg.TurnURL == "" || mgr.cfg.TurnSecret == "" {
+		return nil
+	}
+	// Username = Unix timestamp 1 hour from now.
+	expiry := strconv.FormatInt(time.Now().Add(time.Hour).Unix(), 10)
+	mac := hmac.New(sha1.New, []byte(mgr.cfg.TurnSecret))
+	mac.Write([]byte(expiry))
+	credential := base64.StdEncoding.EncodeToString(mac.Sum(nil))
+	return []webrtc.ICEServer{{
+		URLs:           []string{mgr.cfg.TurnURL},
+		Username:       expiry,
+		Credential:     credential,
+		CredentialType: webrtc.ICECredentialTypePassword,
+	}}
+}
+
 // ── helpers ───────────────────────────────────────────────────────────────────
 
 func hashNetName(name string) string {

internal/proto/proto.go

@@ -3,7 +3,11 @@
 // Binary data (keys, signatures) is hex-encoded; signaling boxes are base64.
 package proto
 
-import "time"
+import (
+	"crypto/sha256"
+	"fmt"
+	"time"
+)
 
 // ── Identity ──────────────────────────────────────────────────────────────────
 
@@ -43,8 +47,10 @@ const (
 	MsgFileAccept   MsgType = "file-accept"
 	MsgFileCancel   MsgType = "file-cancel"
 	MsgFileDone     MsgType = "file-done"
-	MsgPing         MsgType = "ping"
+	MsgPing            MsgType = "ping"
-	MsgPong         MsgType = "pong"
+	MsgPong            MsgType = "pong"
+	MsgHistoryRequest  MsgType = "history_request"
+	MsgHistoryChunk    MsgType = "history_chunk"
 )
 
 // PmMessage is a private message sent directly over a single peer link (§8 "pm").
@@ -73,26 +79,62 @@ type PeerMessage struct {
 	FileListResp *FileListResp `json:"file_list_resp,omitempty"`
 
 	// file transfer (§9) — fields are flat on the wire
-	Xid    string `json:"xid,omitempty"`
+	Xid          string `json:"xid,omitempty"`
-	Name   string `json:"name,omitempty"`
+	Name         string `json:"name,omitempty"`
-	Size   int64  `json:"size,omitempty"`
+	Size         int64  `json:"size,omitempty"`
-	SHA256 string `json:"sha256,omitempty"`
+	SHA256       string `json:"sha256,omitempty"`
+	ResumeOffset int64  `json:"resume_offset,omitempty"` // waste-go ext: non-zero in file-accept when resuming
 
 	// file-done / file-cancel / file-accept just need xid (already above)
 	Reason string `json:"reason,omitempty"` // file-cancel
 
 	Seq *uint64 `json:"seq,omitempty"` // ping/pong
+
+	// history_request fields
+	Since int64 `json:"since,omitempty"` // Unix ms; 0 = no lower bound
+	Limit int   `json:"limit,omitempty"`
+
+	// history_chunk fields
+	History     []HistoryEntry `json:"history,omitempty"`
+	HistoryDone bool           `json:"history_done,omitempty"`
+}
+
+// ResumableFile describes a partially-downloaded file found on daemon startup.
+type ResumableFile struct {
+	Name   string `json:"name"`
+	SHA256 string `json:"sha256"`
+	From   string `json:"from"`    // peer ID hex
+	Size   int64  `json:"size"`
+	Offset int64  `json:"offset"`  // bytes already received
+}
+
+// HistoryEntry is one message in a history_chunk response.
+type HistoryEntry struct {
+	Mid       string `json:"mid"`
+	From      string `json:"from"`       // peer ID hex
+	FromAlias string `json:"from_alias"` // advisory
+	Text      string `json:"text"`
+	Ts        int64  `json:"ts"` // Unix ms
 }
 
 // ChatMessage is a group chat message (wire type "chat", §8).
 // Also used internally for persisting PMs after they are received.
 type ChatMessage struct {
-	Mid  string `json:"mid,omitempty"` // optional dedup id (required when relay hops > 0)
+	Mid   string  `json:"mid,omitempty"`   // optional dedup id (required when relay hops > 0)
-	From PeerID `json:"from,omitempty"` // set by receiver from DC context; not on wire for pm
+	MsgID string  `json:"msg_id,omitempty"` // EXT-007: content-addressed gossip ID
-	To   *PeerID `json:"to,omitempty"`  // internal only — not transmitted; set for DMs
+	From  PeerID  `json:"from,omitempty"`  // set by receiver from DC context; not on wire for pm
-	Room string `json:"room"`
+	To    *PeerID `json:"to,omitempty"`    // internal only — not transmitted; set for DMs
-	Text string `json:"text"`
+	Room  string  `json:"room"`
-	Ts   int64  `json:"ts"` // Unix milliseconds
+	Text  string  `json:"text"`
+	Ts    int64   `json:"ts"` // Unix milliseconds
+}
+
+// ComputeMsgID returns the EXT-007 content-addressed ID for a message.
+// sha256(fromID \x00 room \x00 ts_decimal \x00 text)
+func ComputeMsgID(fromID PeerID, room string, ts int64, text string) string {
+	h := sha256.New()
+	fmt.Fprintf(h, "%s\x00%s\x00%d\x00%s", string(fromID), room, ts, text)
+	return fmt.Sprintf("sha256:%x", h.Sum(nil))
 }
 
 // PeerGossip shares known peer addresses.
@@ -111,6 +153,13 @@ type GossipEntry struct {
 type FileEntry struct {
 	Name      string `json:"name"`
 	SizeBytes int64  `json:"size_bytes"`
+	Path      string `json:"path,omitempty"` // relative path including filename
+}
+
+// ShareEntry describes one persistent share root.
+type ShareEntry struct {
+	Path     string   `json:"path"`
+	Networks []string `json:"networks"` // ["*"] = global
 }
 
 // FileListResp is the payload for MsgFileListResp.
@@ -132,12 +181,16 @@ type FileOffer struct {
 
 // HelloMessage is the first message sent on the "yaw" DataChannel.
 // The signature binds this identity to the specific DTLS session.
+// The Invite field is a waste-go extension (§ waste-go/extensions.md):
+// when RequireInvite is enabled on a network, peers that omit or present
+// an invalid signed invite are disconnected. YAW/2-only peers ignore this field.
 type HelloMessage struct {
-	Type string   `json:"type"` // always "hello"
+	Type   string   `json:"type"`             // always "hello"
-	ID   string   `json:"id"`   // hex pubkey
+	ID     string   `json:"id"`               // hex pubkey
-	Nick string   `json:"nick"` // alias
+	Nick   string   `json:"nick"`             // alias
-	Caps []string `json:"caps"` // capability list, e.g. ["chat","file"]
+	Caps   []string `json:"caps"`             // capability list, e.g. ["chat","file"]
-	Sig  string   `json:"sig"`  // hex ed25519 sig over HelloBindString
+	Sig    string   `json:"sig"`              // hex ed25519 sig over HelloBindString
+	Invite string   `json:"invite,omitempty"` // waste-go ext: signed waste: invite string
 }
 
 // HelloBindString returns the bytes the hello signature covers:
@@ -222,12 +275,18 @@ const (
 	CmdGetFileList    IpcMsgType = "get_file_list"
 	CmdExportIdentity IpcMsgType = "export_identity"  // returns encrypted backup blob
 	CmdImportIdentity IpcMsgType = "import_identity"  // replaces identity from backup blob
+	CmdAddShare       IpcMsgType = "add_share"        // add a share root; fields: path, networks
+	CmdRemoveShare    IpcMsgType = "remove_share"      // remove a share root; field: path
+	CmdListShares     IpcMsgType = "list_shares"       // returns shares_list event
+	CmdCreateRoom       IpcMsgType = "create_room"        // field: room (name)
+	CmdSetDownloadDir   IpcMsgType = "set_download_dir"   // set per-network download directory at runtime; fields: network_id, path
 
 	// Events (daemon → UI)
 	EvtMessageReceived  IpcMsgType = "message_received"
 	EvtPeerConnected    IpcMsgType = "peer_connected"
 	EvtPeerDisconnected IpcMsgType = "peer_disconnected"
 	EvtSessionReady     IpcMsgType = "session_ready"   // DataChannel open + hello verified
+	EvtPeerStatus       IpcMsgType = "peer_status"     // ICE connection state + candidate type
 	EvtIncomingFile     IpcMsgType = "incoming_file"
 	EvtFileProgress     IpcMsgType = "file_progress"
 	EvtStateSnapshot    IpcMsgType = "state_snapshot"
@@ -239,6 +298,10 @@ const (
 	EvtNetworkLeft      IpcMsgType = "network_left"
 	EvtIdentityExported IpcMsgType = "identity_exported"
 	EvtIdentityImported IpcMsgType = "identity_imported"
+	EvtSharesList       IpcMsgType = "shares_list"
+	EvtRoomCreated      IpcMsgType = "room_created"    // field: room (name)
+	EvtHistoryLoaded      IpcMsgType = "history_loaded"       // fields: room, messages
+	EvtResumableTransfers IpcMsgType = "resumable_transfers"  // field: resumable_files
 )
 
 // NetworkInfo summarises one joined network for state_snapshot and network_joined events.
@@ -264,9 +327,11 @@ type IpcMessage struct {
 	Body string  `json:"body,omitempty"`
 
 	// join_network / leave_network
-	NetworkName string `json:"network_name,omitempty"`
+	NetworkName   string `json:"network_name,omitempty"`
-	NetworkHash string `json:"network_hash,omitempty"` // 64-char hex (yaw2 `net` field); alternative to network_name
+	NetworkHash   string `json:"network_hash,omitempty"`    // 64-char hex (yaw2 `net` field); alternative to network_name
-	ShareDir    string `json:"share_dir,omitempty"`    // optional per-network share directory
+	ShareDir      string `json:"share_dir,omitempty"`       // optional per-network share directory
+	RequireInvite bool   `json:"require_invite,omitempty"`  // waste-go ext: reject peers without valid signed invite
+	InviteString  string `json:"invite_string,omitempty"`   // waste-go ext: the invite used to join (stored in mesh)
 
 	// send_file / set_share_dir / file_complete path
 	Path string `json:"path,omitempty"`
@@ -285,13 +350,22 @@ type IpcMessage struct {
 	MasterID       string        `json:"master_id,omitempty"`    // daemon's master public key hex
 	LocalPeer      *PeerInfo     `json:"local_peer,omitempty"`
 	ConnectedPeers []PeerInfo    `json:"connected_peers,omitempty"`
+	KnownPeers     []PeerInfo    `json:"known_peers,omitempty"` // historically seen, not currently connected
 	Rooms          []string      `json:"rooms,omitempty"`
 	// multi-network: all joined networks (additive)
 	Networks       []NetworkInfo `json:"networks,omitempty"`
 	ErrorMessage   string       `json:"error_message,omitempty"`
-	InviteString   string       `json:"invite,omitempty"`
+	InviteGenerated string      `json:"invite,omitempty"`
-	Files          []FileEntry  `json:"files,omitempty"`
+	Files          []FileEntry    `json:"files,omitempty"`
+	Messages        []ChatMessage   `json:"messages,omitempty"`          // history_loaded
+	ResumableFiles  []ResumableFile `json:"resumable_files,omitempty"`   // resumable_transfers
+	Shares         []ShareEntry `json:"shares,omitempty"`
+	ShareNetworks  []string     `json:"network_ids,omitempty"` // for add_share command: scope to specific network IDs, or ["*"] for global
 	// export_identity / import_identity
 	Passphrase     string       `json:"passphrase,omitempty"` // import only; never echoed back
 	Backup         string       `json:"backup,omitempty"`     // JSON backup blob
+	// peer_status — ICE connection quality
+	ConnState     string `json:"conn_state,omitempty"`     // pion PeerConnectionState string
+	CandidateType string `json:"candidate_type,omitempty"` // host | srflx | relay | unknown
+	RemoteAddress string `json:"remote_address,omitempty"` // remote IP:port of active candidate pair
 }

internal/shares/shares.go

@@ -0,0 +1,99 @@
+// Package shares manages the persistent multi-share configuration stored in shares.json.
+// Shares are additive to the existing single-dir ShareDir mechanism.
+package shares
+
+import (
+	"encoding/json"
+	"os"
+	"path/filepath"
+	"sync"
+)
+
+// Share describes one shared directory entry.
+type Share struct {
+	Path     string   `json:"path"`
+	Networks []string `json:"networks"` // ["*"] = global (all networks); otherwise list of network IDs
+}
+
+// Store manages the shares.json file.
+type Store struct {
+	mu     sync.RWMutex
+	path   string
+	shares []Share
+}
+
+// Load reads shares.json from dataDir. Returns an empty store if the file doesn't exist.
+func Load(dataDir string) (*Store, error) {
+	s := &Store{path: filepath.Join(dataDir, "shares.json")}
+	data, err := os.ReadFile(s.path)
+	if os.IsNotExist(err) {
+		return s, nil
+	}
+	if err != nil {
+		return nil, err
+	}
+	if err := json.Unmarshal(data, &s.shares); err != nil {
+		return nil, err
+	}
+	return s, nil
+}
+
+func (s *Store) save() error {
+	data, err := json.MarshalIndent(s.shares, "", "  ")
+	if err != nil {
+		return err
+	}
+	return os.WriteFile(s.path, data, 0600)
+}
+
+// All returns a copy of all shares.
+func (s *Store) All() []Share {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	out := make([]Share, len(s.shares))
+	copy(out, s.shares)
+	return out
+}
+
+// ForNetwork returns all shares visible on networkID (global + network-specific).
+func (s *Store) ForNetwork(networkID string) []Share {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	var out []Share
+	for _, sh := range s.shares {
+		for _, n := range sh.Networks {
+			if n == "*" || n == networkID {
+				out = append(out, sh)
+				break
+			}
+		}
+	}
+	return out
+}
+
+// Add adds a share (no-op if path already present). Persists immediately.
+func (s *Store) Add(sh Share) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	for i, existing := range s.shares {
+		if existing.Path == sh.Path {
+			s.shares[i].Networks = sh.Networks
+			return s.save()
+		}
+	}
+	s.shares = append(s.shares, sh)
+	return s.save()
+}
+
+// Remove removes the share with the given path. Persists immediately.
+func (s *Store) Remove(path string) error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	for i, sh := range s.shares {
+		if sh.Path == path {
+			s.shares = append(s.shares[:i], s.shares[i+1:]...)
+			return s.save()
+		}
+	}
+	return nil
+}

internal/store/store.go

@@ -5,6 +5,7 @@ package store
 import (
 	"database/sql"
 	"fmt"
+	"strings"
 	"time"
 
 	_ "modernc.org/sqlite"
@@ -28,8 +29,21 @@ CREATE TABLE IF NOT EXISTS peers (
     alias       TEXT NOT NULL,
     last_seen   DATETIME NOT NULL
 );
+
+CREATE TABLE IF NOT EXISTS rooms (
+    name        TEXT PRIMARY KEY,
+    created_at  DATETIME NOT NULL
+);
 `
 
+// migrations run after the base schema. ALTER TABLE ADD COLUMN fails with
+// "duplicate column name" on subsequent opens — we swallow that error.
+var migrations = []string{
+	// EXT-007: canonical message ID for history dedup (NULL for pre-feature messages).
+	`ALTER TABLE messages ADD COLUMN msg_id TEXT`,
+	`CREATE UNIQUE INDEX IF NOT EXISTS idx_messages_msg_id ON messages (msg_id) WHERE msg_id IS NOT NULL`,
+}
+
 // Store is a local SQLite-backed message and peer store.
 type Store struct {
 	db *sql.DB
@@ -46,6 +60,12 @@ func Open(path string) (*Store, error) {
 		db.Close()
 		return nil, fmt.Errorf("migrate db: %w", err)
 	}
+	for _, m := range migrations {
+		if _, err := db.Exec(m); err != nil && !strings.Contains(err.Error(), "duplicate column") {
+			db.Close()
+			return nil, fmt.Errorf("migration %q: %w", m, err)
+		}
+	}
 	return &Store{db: db}, nil
 }
 
@@ -59,9 +79,9 @@ func (s *Store) Close() error {
 func (s *Store) SaveMessage(msg *proto.ChatMessage) error {
 	sentAt := time.UnixMilli(msg.Ts).UTC()
 	_, err := s.db.Exec(
-		`INSERT OR IGNORE INTO messages (mid, room, from_peer, body, sent_at)
+		`INSERT OR IGNORE INTO messages (mid, msg_id, room, from_peer, body, sent_at)
-		 VALUES (?, ?, ?, ?, ?)`,
+		 VALUES (?, ?, ?, ?, ?, ?)`,
-		msg.Mid, msg.Room, string(msg.From), msg.Text, sentAt,
+		msg.Mid, nullableString(msg.MsgID), msg.Room, string(msg.From), msg.Text, sentAt,
 	)
 	return err
 }
@@ -86,14 +106,39 @@ func (s *Store) PeerAlias(peerID proto.PeerID) string {
 
 // RecentMessages returns up to limit messages for a room, oldest first.
 func (s *Store) RecentMessages(room string, limit int) ([]proto.ChatMessage, error) {
-	rows, err := s.db.Query(
+	return s.queryMessages(
-		`SELECT mid, from_peer, body, sent_at
+		`SELECT mid, from_peer, room, body, sent_at FROM messages
-		 FROM messages
 		 WHERE room = ?
-		 ORDER BY sent_at DESC
+		 ORDER BY sent_at DESC LIMIT ?`,
-		 LIMIT ?`,
 		room, limit,
 	)
+}
+
+// RecentMessagesSince returns up to limit messages for a room with ts > sinceMs, oldest first.
+// sinceMs == 0 returns the most recent messages regardless of timestamp.
+func (s *Store) RecentMessagesSince(room string, sinceMs int64, limit int) ([]proto.ChatMessage, error) {
+	if limit <= 0 || limit > 500 {
+		limit = 500
+	}
+	if sinceMs == 0 {
+		return s.queryMessages(
+			`SELECT mid, from_peer, room, body, sent_at FROM messages
+			 WHERE room = ?
+			 ORDER BY sent_at DESC LIMIT ?`,
+			room, limit,
+		)
+	}
+	since := time.UnixMilli(sinceMs).UTC()
+	return s.queryMessages(
+		`SELECT mid, from_peer, room, body, sent_at FROM messages
+		 WHERE room = ? AND sent_at > ?
+		 ORDER BY sent_at DESC LIMIT ?`,
+		room, since, limit,
+	)
+}
+
+func (s *Store) queryMessages(q string, args ...any) ([]proto.ChatMessage, error) {
+	rows, err := s.db.Query(q, args...)
 	if err != nil {
 		return nil, err
 	}
@@ -104,11 +149,10 @@ func (s *Store) RecentMessages(room string, limit int) ([]proto.ChatMessage, err
 		var m proto.ChatMessage
 		var from string
 		var sentAt time.Time
-		if err := rows.Scan(&m.Mid, &from, &m.Text, &sentAt); err != nil {
+		if err := rows.Scan(&m.Mid, &from, &m.Room, &m.Text, &sentAt); err != nil {
 			return nil, err
 		}
 		m.From = proto.PeerID(from)
-		m.Room = room
 		m.Ts = sentAt.UnixMilli()
 		msgs = append(msgs, m)
 	}
@@ -119,6 +163,33 @@ func (s *Store) RecentMessages(room string, limit int) ([]proto.ChatMessage, err
 	return msgs, rows.Err()
 }
 
+// SaveRoom persists a room name. Duplicate names are silently ignored.
+func (s *Store) SaveRoom(name string) error {
+	_, err := s.db.Exec(
+		`INSERT OR IGNORE INTO rooms (name, created_at) VALUES (?, ?)`,
+		name, time.Now().UTC(),
+	)
+	return err
+}
+
+// Rooms returns all persisted room names, ordered by creation time.
+func (s *Store) Rooms() ([]string, error) {
+	rows, err := s.db.Query(`SELECT name FROM rooms ORDER BY created_at`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+	var out []string
+	for rows.Next() {
+		var name string
+		if err := rows.Scan(&name); err != nil {
+			return nil, err
+		}
+		out = append(out, name)
+	}
+	return out, rows.Err()
+}
+
 // KnownPeers returns all peers seen since this daemon started storing data.
 func (s *Store) KnownPeers() (map[proto.PeerID]string, error) {
 	rows, err := s.db.Query(`SELECT peer_id, alias FROM peers`)
@@ -136,3 +207,10 @@ func (s *Store) KnownPeers() (map[proto.PeerID]string, error) {
 	}
 	return out, rows.Err()
 }
+
+func nullableString(s string) any {
+	if s == "" {
+		return nil
+	}
+	return s
+}

web/index.html

@@ -3,7 +3,14 @@
   <head>
     <meta charset="UTF-8" />
     <link rel="icon" type="image/svg+xml" href="/favicon.svg" />
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
+    <meta name="theme-color" content="#863bff" />
+    <meta name="mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-app-capable" content="yes" />
+    <meta name="apple-mobile-web-app-status-bar-style" content="black-translucent" />
+    <meta name="apple-mobile-web-app-title" content="waste" />
+    <link rel="apple-touch-icon" href="/apple-touch-icon.png" />
+    <link rel="manifest" href="/manifest.json" />
     <title>waste</title>
   </head>
   <body>

web/package.json

@@ -7,7 +7,9 @@
     "dev": "vite",
     "build": "tsc -b && vite build",
     "lint": "eslint .",
-    "preview": "vite preview"
+    "preview": "vite preview",
+    "wails:dev": "wails dev",
+    "wails:build": "wails build"
   },
   "dependencies": {
     "libsodium-wrappers": "^0.8.4",

web/public/manifest.json

@@ -0,0 +1,23 @@
+{
+  "name": "waste",
+  "short_name": "waste",
+  "description": "Decentralized friend-to-friend encrypted mesh networking",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#0d0d0d",
+  "theme_color": "#863bff",
+  "icons": [
+    {
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png",
+      "purpose": "any"
+    },
+    {
+      "src": "/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png",
+      "purpose": "any maskable"
+    }
+  ]
+}

web/src/App.css

@@ -7,8 +7,7 @@
   --accent: #7c6af7;
   --text: #e0e0e8;
   --muted: #6b6b80;
-  --sidebar-w: 200px;
+  --sidebar-w: 220px;
-  --peerlist-w: 180px;
 }
 
 html, body, #root { height: 100%; }
@@ -16,7 +15,7 @@ body { background: var(--bg); color: var(--text); font-family: system-ui, sans-s
 
 button { cursor: pointer; background: var(--accent); color: #fff; border: none; border-radius: 4px; padding: 4px 10px; font-size: 13px; }
 button:disabled { opacity: 0.4; cursor: default; }
-input { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 6px 10px; font-size: 13px; outline: none; }
+input { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 6px 10px; font-size: 13px; outline: none; width: 100%; }
 input:focus { border-color: var(--accent); }
 
 /* ── onboarding ── */
@@ -33,52 +32,135 @@ input:focus { border-color: var(--accent); }
 .onboarding-code { background: var(--surface); border: 1px solid var(--border); border-radius: 4px; padding: 8px 12px; font-size: 12px; font-family: monospace; color: var(--text); width: 100%; text-align: left; }
 .onboarding-section { width: 100%; border-top: 1px solid var(--border); padding-top: 12px; }
 .join-form { display: flex; flex-direction: column; gap: 8px; width: 100%; }
-.join-form input { width: 100%; }
 .join-label { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
+.saved-networks { display: flex; flex-direction: column; gap: 6px; width: 100%; }
+.saved-network-chips { display: flex; flex-wrap: wrap; gap: 6px; }
+.network-chip { background: var(--surface); border: 1px solid var(--border); color: var(--text); border-radius: 20px; padding: 4px 14px; font-size: 13px; }
+.network-chip:hover { border-color: var(--accent); color: var(--accent); background: var(--surface); }
 button.primary { background: var(--accent); width: 100%; padding: 8px; font-size: 14px; }
 .toggle-link { background: none; color: var(--muted); font-size: 12px; padding: 4px 0; text-align: left; }
 .toggle-link:hover { color: var(--text); }
 .backup-panel { display: flex; flex-direction: column; gap: 8px; margin-top: 8px; }
 .backup-form { display: flex; flex-direction: column; gap: 6px; }
-.backup-form textarea { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 6px 8px; font-size: 11px; resize: vertical; }
+.backup-form textarea { background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: 4px; padding: 6px 8px; font-size: 11px; resize: vertical; width: 100%; }
 .export-result { display: flex; flex-direction: column; gap: 6px; }
 .export-result textarea { font-size: 10px; }
 .mono { font-family: monospace; }
 details summary { color: var(--muted); font-size: 12px; cursor: pointer; }
 
 /* ── chat layout ── */
-.chat-layout { display: grid; grid-template-columns: var(--sidebar-w) 1fr var(--peerlist-w); height: 100%; }
+.chat-layout { display: grid; grid-template-columns: var(--sidebar-w) 1fr; height: 100%; }
 
 /* ── sidebar ── */
-.sidebar { background: var(--surface); border-right: 1px solid var(--border); display: flex; flex-direction: column; gap: 4px; padding: 12px 8px; overflow-y: auto; }
+.sidebar { background: var(--surface); border-right: 1px solid var(--border); display: flex; flex-direction: column; overflow-y: auto; }
-.sidebar-identity { padding: 8px; border-bottom: 1px solid var(--border); margin-bottom: 8px; }
+.sidebar-identity { padding: 12px 12px 10px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 6px; }
-.sidebar-identity .alias { display: block; font-weight: 600; }
+.sidebar-identity .alias { display: block; font-weight: 600; font-size: 14px; }
-.sidebar-identity .peer-id { display: block; color: var(--muted); font-size: 11px; font-family: monospace; }
+.sidebar-identity .peer-id { display: block; color: var(--muted); font-size: 10px; font-family: monospace; margin-top: 2px; }
-.sidebar-section { display: flex; flex-direction: column; gap: 2px; margin-bottom: 16px; }
+.sidebar-logout { background: none; color: var(--muted); font-size: 14px; padding: 2px 4px; flex-shrink: 0; margin-left: auto; }
-.sidebar-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); padding: 4px 8px; }
+.sidebar-logout:hover { color: #e06060; background: none; }
-.sidebar-item { background: none; color: var(--text); text-align: left; padding: 5px 8px; border-radius: 4px; width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.sidebar-section { display: flex; flex-direction: column; padding: 8px 0; border-bottom: 1px solid var(--border); }
-.sidebar-item:hover { background: var(--border); }
+.sidebar-section:last-child { border-bottom: none; flex: 1; }
+.sidebar-label { font-size: 10px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); padding: 4px 12px 2px; }
+.sidebar-label-row { display: flex; align-items: center; justify-content: space-between; padding-right: 8px; }
+.sidebar-label-row .sidebar-label { padding-right: 0; }
+.sidebar-add { background: none; color: var(--muted); font-size: 14px; padding: 0 4px; line-height: 1; }
+.sidebar-add:hover { color: var(--accent); background: none; }
+.sidebar-new-room { padding: 2px 8px 4px; }
+.sidebar-new-room input { font-size: 12px; padding: 4px 8px; }
+.sidebar-item { background: none; color: var(--text); text-align: left; padding: 5px 12px; border-radius: 0; width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
+.sidebar-item:hover { background: rgba(255,255,255,0.04); }
 .sidebar-item.active { background: var(--accent); color: #fff; }
+.sidebar-empty { font-size: 11px; color: var(--muted); padding: 4px 12px; }
+
+/* peer rows in sidebar */
+.sidebar-peers { gap: 0; }
+.peer-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
+.peer-row { display: flex; align-items: center; gap: 6px; padding: 4px 12px; }
+.peer-row-self { opacity: 0.7; }
+.peer-row-you { font-size: 10px; color: var(--accent); text-transform: uppercase; letter-spacing: 0.06em; margin-left: 2px; flex-shrink: 0; }
+.peer-row:hover { background: rgba(255,255,255,0.04); }
+.peer-row:hover .peer-row-actions { opacity: 1; }
+.peer-row-alias { font-size: 13px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.peer-row-id { font-size: 10px; color: var(--muted); font-family: monospace; flex: 1; }
+.peer-row-actions { opacity: 0; display: flex; gap: 2px; transition: opacity 0.1s; margin-left: auto; }
+.peer-action { background: none; color: var(--muted); font-size: 14px; padding: 1px 3px; line-height: 1; }
+.peer-action:hover { color: var(--accent); background: none; }
 
 /* ── message pane ── */
-.message-pane { display: flex; flex-direction: column; height: 100%; }
+.message-pane { display: flex; flex-direction: column; height: 100%; min-width: 0; }
-.message-pane-header { padding: 12px 16px; border-bottom: 1px solid var(--border); font-weight: 600; color: var(--muted); }
+.message-pane-header { padding: 10px 16px; border-bottom: 1px solid var(--border); font-weight: 600; font-size: 13px; color: var(--text); }
-.messages { flex: 1; overflow-y: auto; padding: 12px 16px; display: flex; flex-direction: column; gap: 6px; }
+.messages { flex: 1; overflow-y: auto; padding: 8px 0; display: flex; flex-direction: column; }
-.message { display: flex; gap: 8px; align-items: baseline; }
+.message { display: flex; align-items: baseline; gap: 0; padding: 2px 16px; line-height: 1.5; }
+.message:hover { background: rgba(255,255,255,0.02); }
+.message-ts { color: var(--muted); font-size: 11px; white-space: nowrap; flex-shrink: 0; width: 72px; }
+.message-alias { font-weight: 600; font-size: 13px; text-align: left; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; flex-shrink: 0; width: 90px; padding-right: 10px; }
 .message.mine .message-alias { color: var(--accent); }
-.message-alias { font-weight: 600; min-width: 80px; color: var(--muted); font-size: 12px; }
+.message-text { word-break: break-word; font-size: 14px; color: var(--text); }
-.message-text { flex: 1; word-break: break-word; }
+.compose { display: flex; gap: 8px; padding: 10px 16px; border-top: 1px solid var(--border); }
-.message-ts { color: var(--muted); font-size: 11px; white-space: nowrap; }
+.compose input { flex: 1; width: auto; }
-.compose { display: flex; gap: 8px; padding: 12px 16px; border-top: 1px solid var(--border); }
+.compose button { flex-shrink: 0; }
-.compose input { flex: 1; }
 
-/* ── peer list ── */
+/* ── transfers panel (in sidebar) ── */
-.peer-list { background: var(--surface); border-left: 1px solid var(--border); padding: 12px 8px; display: flex; flex-direction: column; gap: 4px; overflow-y: auto; }
+.transfer-row { display: flex; flex-direction: column; gap: 3px; padding: 6px 12px; border-bottom: 1px solid var(--border); }
-.peer-entry { display: flex; flex-direction: column; gap: 4px; padding: 6px 8px; border-radius: 4px; }
+.transfer-row:last-child { border-bottom: none; }
-.peer-entry:hover { background: var(--border); }
+.transfer-name { font-size: 12px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
-.peer-entry-info .alias { display: block; font-weight: 600; font-size: 13px; }
+.transfer-meta { font-size: 10px; color: var(--muted); }
-.peer-entry-info .peer-id { display: block; color: var(--muted); font-size: 11px; font-family: monospace; }
+.transfer-actions { display: flex; gap: 4px; margin-top: 2px; }
-.peer-entry-actions { display: flex; gap: 4px; }
+.transfer-btn { font-size: 11px; padding: 2px 8px; }
-.peer-entry-actions button { font-size: 11px; padding: 2px 6px; background: var(--border); color: var(--text); }
+.transfer-btn.accept { background: #3a7a3a; }
-.peer-entry-actions button:hover { background: var(--accent); color: #fff; }
+.transfer-btn.reject { background: #7a3a3a; }
-.empty { color: var(--muted); font-size: 12px; padding: 8px; }
+.transfer-btn:hover { opacity: 0.85; }
+.transfer-progress { height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; margin-top: 2px; }
+.transfer-progress-bar { height: 100%; background: var(--accent); transition: width 0.1s; }
+
+/* ── file browser panel ── */
+.chat-layout.has-file-browser { grid-template-columns: var(--sidebar-w) 1fr 280px; }
+.file-browser { display: flex; flex-direction: column; background: var(--surface); border-left: 1px solid var(--border); }
+.file-browser-header { display: flex; align-items: center; justify-content: space-between; padding: 10px 12px; border-bottom: 1px solid var(--border); }
+.file-browser-title { font-size: 13px; font-weight: 600; }
+.file-browser-close { background: none; color: var(--muted); font-size: 14px; padding: 2px 6px; }
+.file-browser-close:hover { color: var(--text); background: none; }
+.file-browser-empty { padding: 16px 12px; color: var(--muted); font-size: 13px; }
+.file-list { list-style: none; padding: 4px 0; overflow-y: auto; flex: 1; }
+.file-entry { display: flex; align-items: center; gap: 6px; padding: 5px 12px; }
+.file-entry:hover { background: rgba(255,255,255,0.04); }
+.file-entry-name { flex: 1; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.file-entry-size { color: var(--muted); font-size: 11px; flex-shrink: 0; }
+.file-entry-dl { background: none; color: var(--accent); font-size: 14px; padding: 1px 4px; flex-shrink: 0; }
+.file-entry-dl:hover { background: rgba(124,106,247,0.15); }
+
+/* ── share manager ── */
+.share-manager { width: 100%; display: flex; flex-direction: column; gap: 4px; }
+.share-list { list-style: none; display: flex; flex-direction: column; gap: 2px; margin-bottom: 2px; }
+.share-item { display: flex; align-items: center; gap: 4px; font-size: 12px; padding: 2px 0; }
+.share-icon { flex-shrink: 0; font-size: 11px; }
+.share-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; color: var(--text); }
+.share-scope { font-size: 10px; color: var(--muted); flex-shrink: 0; }
+.share-repick { background: none; color: var(--muted); font-size: 12px; padding: 0 3px; flex-shrink: 0; }
+.share-repick:hover { color: var(--accent); background: none; }
+.share-remove { background: none; color: var(--muted); font-size: 11px; padding: 0 3px; flex-shrink: 0; }
+.share-remove:hover { color: #e06060; background: none; }
+
+/* ── folder picker ── */
+.folder-picker { width: 100%; display: flex; flex-direction: column; gap: 4px; }
+.folder-picker-btn { background: var(--surface); color: var(--muted); border: 1px solid var(--border); font-size: 12px; padding: 5px 10px; border-radius: 4px; width: 100%; text-align: left; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
+.folder-picker-btn:hover { color: var(--text); border-color: var(--accent); background: var(--surface); }
+.folder-picker-subfolders { display: flex; align-items: center; gap: 5px; font-size: 11px; color: var(--muted); cursor: pointer; }
+.folder-picker-subfolders input { width: auto; cursor: pointer; }
+
+/* ── file browser toolbar / breadcrumb / sort ── */
+.file-browser-toolbar { padding: 6px 8px 0; }
+.file-browser-search { font-size: 12px; padding: 4px 8px; }
+.file-browser-breadcrumb { display: flex; align-items: center; flex-wrap: wrap; padding: 4px 8px; gap: 0; font-size: 11px; color: var(--muted); border-bottom: 1px solid var(--border); }
+.breadcrumb-seg { background: none; color: var(--muted); font-size: 11px; padding: 0 2px; }
+.breadcrumb-seg:hover { color: var(--accent); background: none; }
+.breadcrumb-sep { color: var(--border); padding: 0 1px; }
+.file-browser-sortbar { display: flex; gap: 4px; padding: 4px 8px; border-bottom: 1px solid var(--border); }
+.sort-btn { background: none; color: var(--muted); font-size: 11px; padding: 1px 6px; border-radius: 3px; }
+.sort-btn:hover { background: rgba(255,255,255,0.05); color: var(--text); }
+.sort-btn.active { color: var(--accent); background: none; }
+.file-entry-dir { cursor: pointer; }
+.file-entry-dir:hover { background: rgba(255,255,255,0.04); }
+.file-entry-icon { font-size: 12px; flex-shrink: 0; }
+.history-divider { display: flex; align-items: center; gap: 8px; margin: 10px 0 6px; color: var(--muted); font-size: 11px; }
+.history-divider::before, .history-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

web/src/App.tsx

@@ -4,22 +4,54 @@ import { Onboarding } from './pages/Onboarding'
 import { Chat } from './pages/Chat'
 import './App.css'
 
-// When served from the anchor (non-localhost), default to browser mode.
-// When running locally, try the daemon first.
 const isLocal = window.location.hostname === 'localhost' || window.location.hostname === '127.0.0.1'
 const DAEMON_WS = import.meta.env.VITE_DAEMON_WS ?? 'ws://127.0.0.1:17338'
+const cfg = (window as unknown as { WASTE_CONFIG?: { signalURL?: string } }).WASTE_CONFIG
+// Use browser mode if a signal URL is configured, even on localhost
+const useBrowser = !isLocal || !!cfg?.signalURL
+
+// Wails runtime is injected at /wails/runtime.js when running inside the desktop app.
+// EventsOn/EventsOff are no-ops in plain browser mode.
+type WailsRuntime = { EventsOn: (event: string, cb: (data: unknown) => void) => void }
+const wails = (window as unknown as { runtime?: WailsRuntime }).runtime
+
+function useWailsNotifications() {
+  useEffect(() => {
+    if (!wails) return
+
+    const handler = (data: unknown) => {
+      const { title, body } = data as { title: string; body: string }
+      if (Notification.permission === 'granted') {
+        new Notification(title, { body })
+      } else if (Notification.permission !== 'denied') {
+        Notification.requestPermission().then(p => {
+          if (p === 'granted') new Notification(title, { body })
+        })
+      }
+    }
+
+    wails.EventsOn('notify', handler)
+    return () => {
+      // EventsOff added in Wails v2.4; guard in case of older runtime.
+      ;(window as unknown as { runtime?: { EventsOff?: (...e: string[]) => void } })
+        .runtime?.EventsOff?.('notify')
+    }
+  }, [])
+}
 
 export default function App() {
   const { connect, connectBrowser, daemonStatus, localPeer } = useWaste()
 
   useEffect(() => {
-    if (isLocal) {
+    if (useBrowser) {
-      connect(DAEMON_WS)
-    } else {
       connectBrowser()
+    } else {
+      connect(DAEMON_WS)
     }
   }, [connect, connectBrowser])
 
+  useWailsNotifications()
+
   if (daemonStatus !== 'connected' || !localPeer) {
     return <Onboarding status={daemonStatus} />
   }

web/src/adapter/browser.ts

@@ -16,6 +16,27 @@ const EKEY_PREFIX = 'yaw/2.1 ekey'
 const FS_TIMEOUT = 2000
 const STUN = 'stun:stun.l.google.com:19302'
 
+async function turnCredential(secret: string, username: string): Promise<string> {
+  const key = await crypto.subtle.importKey(
+    'raw', new TextEncoder().encode(secret),
+    { name: 'HMAC', hash: 'SHA-1' },
+    false, ['sign']
+  )
+  const sig = await crypto.subtle.sign('HMAC', key, new TextEncoder().encode(username))
+  return btoa(String.fromCharCode(...new Uint8Array(sig)))
+}
+
+async function iceServers(): Promise<RTCIceServer[]> {
+  const cfg = (window as unknown as { WASTE_CONFIG?: { turnURL?: string; turnSecret?: string } }).WASTE_CONFIG
+  const servers: RTCIceServer[] = [{ urls: STUN }]
+  if (cfg?.turnURL && cfg?.turnSecret) {
+    const user = Math.floor(Date.now() / 1000) + 3600 + ':waste'
+    const credential = await turnCredential(cfg.turnSecret, user)
+    servers.push({ urls: cfg.turnURL, username: user, credential })
+  }
+  return servers
+}
+
 const enc = (s: string) => new TextEncoder().encode(s)
 
 function concat(...arrs: Uint8Array[]): Uint8Array {
@@ -245,20 +266,33 @@ class PeerConn {
   public peerId: string
   private on: PeerCallback
   private nick: string
+  share: Map<string, File>
 
-  constructor(identity: Identity, sig: Signaling, peerId: string, on: PeerCallback, nick: string) {
+  // in-flight receives: xid → state
+  private _recv: Record<string, { name: string; size: number; sha: string; buf: ArrayBuffer[]; have: number; done: boolean; cancelled?: boolean }> = {}
+  // open receive DataChannels for cancellation
+  private _recvChannels: Record<string, RTCDataChannel> = {}
+  // in-flight sends: xid → marker
+  private _send: Record<string, Uint8Array> = {}
+  // push-initiated files waiting for file-accept: xid → File
+  private _pushQueue: Map<string, File> = new Map()
+
+  constructor(identity: Identity, sig: Signaling, peerId: string, on: PeerCallback, nick: string, share: Map<string, File>, ice: RTCIceServer[]) {
     this.identity = identity
     this.sig = sig
     this.peerId = peerId
     this.on = on
     this.nick = nick
-    this.pc = new RTCPeerConnection({ iceServers: [{ urls: STUN }] })
+    this.share = share
+    this.pc = new RTCPeerConnection({ iceServers: ice })
     const kp = sodium.crypto_box_keypair()
     this._esk = kp.privateKey
     this._epk = kp.publicKey
     this.pc.ondatachannel = (ev) => this._wire(ev.channel)
-    this.pc.onconnectionstatechange = () =>
+    this.pc.onconnectionstatechange = () => {
       this.on('status', { peer: this.peerId, state: this.pc.connectionState })
+      if (this.pc.connectionState === 'connected') this.reportStats()
+    }
   }
 
   private _seal(obj: object, preferEph: boolean): [string, boolean] {
@@ -347,11 +381,33 @@ class PeerConn {
   }
 
   private _wire(channel: RTCDataChannel) {
-    if (channel.label !== 'yaw') return
+    if (channel.label === 'yaw') {
-    this.dc = channel
+      this.dc = channel
-    channel.onopen = () => this._sendHello()
+      channel.onopen = () => this._sendHello()
-    channel.onmessage = (ev) => this._onControl(ev.data)
+      channel.onmessage = (ev) => this._onControl(ev.data)
-    if (channel.readyState === 'open') this._sendHello()
+      if (channel.readyState === 'open') this._sendHello()
+      return
+    }
+    if (channel.label.startsWith('f:')) {
+      const xid = channel.label.slice(2)
+      const rx = this._recv[xid]
+      if (!rx) return
+      channel.binaryType = 'arraybuffer'
+      channel.onmessage = (ev) => {
+        if (!(ev.data instanceof ArrayBuffer)) return
+        rx.buf.push(ev.data)
+        rx.have += ev.data.byteLength
+        this.on('file_progress', { peer: this.peerId, xid, name: rx.name, received: rx.have, total: rx.size })
+      }
+      channel.onclose = async () => {
+        if (rx.cancelled) { delete this._recv[xid]; return }
+        const blob = new Blob(rx.buf)
+        const url = URL.createObjectURL(blob)
+        this.on('file_recv', { peer: this.peerId, name: rx.name, size: rx.size, url })
+        delete this._recv[xid]
+      }
+      this._recvChannels[xid] = channel
+    }
   }
 
   private _sendHello() {
@@ -383,9 +439,123 @@ class PeerConn {
       })
     } else if (m['type'] === 'pm') {
       this.on('pm', { peer: this.peerId, text: m['text'] as string, ts: m['ts'] as number || Date.now() })
+    } else if (m['type'] === 'browse') {
+      const files = Array.from(this.share.entries()).map(([path, f]) => ({
+        name: f.name, path, size: f.size, mime: f.type
+      }))
+      this._dc({ type: 'files', files })
+    } else if (m['type'] === 'files') {
+      const files = m['files'] as Array<{ name: string; path?: string; size: number; mime?: string }>
+      this.on('files', { peer: this.peerId, files })
+    } else if (m['type'] === 'get') {
+      const path = m['path'] as string
+      const file = this.share.get(path)
+      if (!file) return
+      this._dc({ type: 'file-offer', name: file.name, path, size: file.size, xid: path })
+    } else if (m['type'] === 'file-offer') {
+      const name = m['name'] as string
+      const size = m['size'] as number
+      const xid = m['xid'] as string
+      this.on('file_offer', { peer: this.peerId, name, size, xid })
+    } else if (m['type'] === 'file-accept') {
+      const xid = m['xid'] as string
+      // xid is either a push UUID or a share path
+      if (this._pushQueue.has(xid) || this.share.has(xid)) void this._stream(xid)
+    } else if (m['type'] === 'file-done') {
+      const xid = m['xid'] as string
+      if (this._recv[xid]) this._recv[xid].done = true
+    } else if (m['type'] === 'file-cancel') {
+      const xid = m['xid'] as string
+      if (this._recv[xid]) {
+        this._recv[xid].cancelled = true
+        this._recvChannels[xid]?.close()
+        delete this._recvChannels[xid]
+        this.on('file_cancelled', { peer: this.peerId, xid })
+      }
     }
   }
 
+  requestBrowse() {
+    this._dc({ type: 'browse', path: '/' })
+  }
+
+  requestGet(path: string) {
+    this._dc({ type: 'get', path })
+  }
+
+  acceptOffer(xid: string, name: string, size: number) {
+    this._recv[xid] = { name, size, sha: '', buf: [], have: 0, done: false }
+    this._dc({ type: 'file-accept', xid })
+  }
+
+  rejectOffer(xid: string) {
+    this._dc({ type: 'file-cancel', xid })
+  }
+
+  cancelRecv(xid: string) {
+    if (this._recv[xid]) this._recv[xid].cancelled = true
+    this._recvChannels[xid]?.close()
+    delete this._recvChannels[xid]
+    this._dc({ type: 'file-cancel', xid })
+  }
+
+  cancelSend(xid: string) {
+    this._pushQueue.delete(xid)
+    delete this._send[xid]
+    this._dc({ type: 'file-cancel', xid })
+  }
+
+  sendFilePush(file: File) {
+    const xid = `push-${Date.now()}-${Math.random().toString(36).slice(2, 7)}`
+    this._pushQueue.set(xid, file)
+    this._dc({ type: 'file-offer', name: file.name, size: file.size, xid })
+  }
+
+  private async _stream(xid: string) {
+    const file = this._pushQueue.get(xid) ?? this.share.get(xid)
+    if (!file) return
+    this._pushQueue.delete(xid)
+    const dc = this.pc.createDataChannel(`f:${xid}`)
+    dc.binaryType = 'arraybuffer'
+    this._send[xid] = new Uint8Array(0) // marker
+    await new Promise<void>(res => { dc.onopen = () => res() })
+    const CHUNK = 64 * 1024
+    const buf = await file.arrayBuffer()
+    let offset = 0
+    while (offset < buf.byteLength) {
+      while (dc.bufferedAmount > 1024 * 1024) {
+        await new Promise(r => setTimeout(r, 10))
+      }
+      dc.send(buf.slice(offset, offset + CHUNK))
+      offset += CHUNK
+    }
+    dc.close()
+    delete this._send[xid]
+    this._dc({ type: 'file-done', xid })
+  }
+
+  async reportStats() {
+    try {
+      const stats = await this.pc.getStats()
+      let candidateType: string = 'unknown'
+      let remoteAddress = ''
+      stats.forEach((s) => {
+        if (s.type === 'candidate-pair' && (s as RTCIceCandidatePairStats).state === 'succeeded') {
+          const pair = s as RTCIceCandidatePairStats & { nominated?: boolean }
+          if (pair.nominated) {
+            stats.forEach((c) => {
+              if (c.type === 'remote-candidate' && c.id === (pair as unknown as Record<string,string>)['remoteCandidateId']) {
+                candidateType = (c as unknown as Record<string,string>)['candidateType'] || 'unknown'
+                remoteAddress = (c as unknown as Record<string,string>)['address'] || ''
+              }
+            })
+          }
+        }
+      })
+      this.on('ice_stats', { peer: this.peerId, candidateType, remoteAddress })
+    } catch { /* ignore */ }
+  }
+
   sendChat(room: string, text: string) {
     this._dc({ type: 'chat', room, text, ts: Date.now() })
   }
@@ -425,6 +595,7 @@ export class BrowserAdapter {
   private present: Set<string> = new Set()
   private networkId = ''
   private networkName = ''
+  sharedFiles: Map<string, File> = new Map()
 
   status: Status = 'disconnected'
   onStatusChange?: (s: Status) => void
@@ -553,9 +724,11 @@ export class BrowserAdapter {
       if (existing.verified || open || (alive && fresh)) return
     }
 
+    const ice = await iceServers()
     const peer = new PeerConn(this.identity, this.sig!, pid,
-      (ev, data) => this._onPeerEvent(ev, data), this.identity.nick)
+      (ev, data) => this._onPeerEvent(ev, data), this.identity.nick, this.sharedFiles, ice)
     this.peers.set(pid, peer)
+    this._emitDiscovered(pid)
     await peer.startOffer()
   }
 
@@ -563,8 +736,10 @@ export class BrowserAdapter {
     if (!this.identity || from === this.identity.id) return
     let peer = this.peers.get(from)
     if (!peer || peer.pc.connectionState === 'failed' || peer.pc.connectionState === 'closed') {
+      const ice = await iceServers()
       peer = new PeerConn(this.identity, this.sig!, from,
-        (ev, data) => this._onPeerEvent(ev, data), this.identity.nick)
+        (ev, data) => this._onPeerEvent(ev, data), this.identity.nick, this.sharedFiles, ice)
+      this._emitDiscovered(from)
       this.peers.set(from, peer)
     }
     await peer.onBox(box)
@@ -608,9 +783,99 @@ export class BrowserAdapter {
           ts,
         },
       })
+    } else if (event === 'status') {
+      this.emit({
+        type: 'peer_status',
+        peer_id: data['peer'] as unknown as import('../types').PeerID,
+        conn_state: data['state'] as import('../types').PeerConnState,
+      })
+    } else if (event === 'ice_stats') {
+      this.emit({
+        type: 'peer_status',
+        peer_id: data['peer'] as unknown as import('../types').PeerID,
+        candidate_type: data['candidateType'] as import('../types').CandidateType,
+        remote_address: data['remoteAddress'] as string,
+      })
+    } else if (event === 'file_offer') {
+      this.emit({
+        type: 'incoming_file',
+        peer_id: data['peer'] as string,
+        offer: { xid: data['xid'] as string, name: data['name'] as string, size: data['size'] as number, sha256: '' },
+      })
+    } else if (event === 'file_progress') {
+      this.emit({
+        type: 'file_progress',
+        peer_id: data['peer'] as string,
+        transfer_id: data['xid'] as string,
+        offer: { xid: data['xid'] as string, name: data['name'] as string, size: data['total'] as number, sha256: '' },
+        bytes_received: data['received'] as number,
+        total_bytes: data['total'] as number,
+      })
+    } else if (event === 'file_cancelled') {
+      this.emit({
+        type: 'error',
+        peer_id: data['peer'] as string,
+        error_message: `transfer ${(data['xid'] as string).slice(0, 8)} cancelled`,
+      })
+    } else if (event === 'files') {
+      const raw = data['files'] as Array<{ name: string; path?: string; size: number; mime?: string }>
+      this.emit({
+        type: 'file_list',
+        peer_id: data['peer'] as string,
+        files: raw.map(f => ({ name: f.name, path: f.path ?? f.name, size_bytes: f.size })),
+      })
+    } else if (event === 'file_recv') {
+      this.emit({
+        type: 'file_complete',
+        peer_id: data['peer'] as string,
+        path: data['url'] as string,
+        offer: { xid: data['name'] as string, name: data['name'] as string, size: data['size'] as number, sha256: '' },
+      })
     }
   }
 
+  private _emitDiscovered(pid: string) {
+    this.emit({
+      type: 'peer_connected',
+      peer: { id: pid, alias: pid.slice(0, 8), public_key: pid, created_at: new Date().toISOString() },
+    })
+    this.emit({
+      type: 'peer_status',
+      peer_id: pid as unknown as import('../types').PeerID,
+      conn_state: 'connecting',
+    })
+  }
+
+  setSharedFiles(files: Map<string, File>) {
+    this.sharedFiles = files
+    this.peers.forEach(p => { p.share = files })
+  }
+
+  requestBrowse(peerId: string) {
+    this.peers.get(peerId)?.requestBrowse()
+  }
+
+  requestGet(peerId: string, path: string) {
+    this.peers.get(peerId)?.requestGet(path)
+  }
+
+  sendFileTo(peerId: string, file: File) {
+    this.peers.get(peerId)?.sendFilePush(file)
+  }
+
+  acceptOffer(peerId: string, xid: string, name: string, size: number) {
+    this.peers.get(peerId)?.acceptOffer(xid, name, size)
+  }
+
+  rejectOffer(peerId: string, xid: string) {
+    this.peers.get(peerId)?.rejectOffer(xid)
+  }
+
+  cancelTransfer(peerId: string, xid: string, direction: 'recv' | 'send') {
+    if (direction === 'recv') this.peers.get(peerId)?.cancelRecv(xid)
+    else this.peers.get(peerId)?.cancelSend(xid)
+  }
+
   send(msg: IpcMessage) {
     if (!this.identity) return
 

web/src/components/FileBrowser.tsx

@@ -0,0 +1,192 @@
+import { useState, useMemo } from 'react'
+import { useWaste } from '../store'
+import { BrowserAdapter } from '../adapter/browser'
+import type { FileEntry } from '../types'
+
+function fmt(bytes: number): string {
+  if (bytes < 1024) return `${bytes} B`
+  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`
+  return `${(bytes / (1024 * 1024)).toFixed(1)} MB`
+}
+
+type SortKey = 'name' | 'size'
+type SortDir = 'asc' | 'desc'
+
+interface DirEntry {
+  kind: 'dir'
+  name: string
+  path: string
+  count: number
+}
+
+interface FileRow {
+  kind: 'file'
+  name: string
+  path: string
+  size: number
+}
+
+type Row = DirEntry | FileRow
+
+function buildRows(files: FileEntry[], cwd: string, search: string, sort: SortKey, sortDir: SortDir): Row[] {
+  // Filter to entries under cwd
+  const prefix = cwd ? cwd + '/' : ''
+  const inDir = files.filter(f => {
+    const p = f.path ?? f.name
+    return p.startsWith(prefix)
+  })
+
+  if (search.trim()) {
+    // Flat search across all files under cwd
+    const q = search.toLowerCase()
+    return inDir
+      .filter(f => f.name.toLowerCase().includes(q))
+      .map(f => ({ kind: 'file' as const, name: f.name, path: f.path ?? f.name, size: f.size_bytes }))
+      .sort((a, b) => {
+        const cmp = sort === 'name' ? a.name.localeCompare(b.name) : a.size - b.size
+        return sortDir === 'asc' ? cmp : -cmp
+      })
+  }
+
+  // Build immediate children: dirs and files at this level
+  const dirs = new Map<string, number>() // dirName → file count
+  const fileRows: FileRow[] = []
+
+  for (const f of inDir) {
+    const rel = (f.path ?? f.name).slice(prefix.length)
+    const slash = rel.indexOf('/')
+    if (slash === -1) {
+      fileRows.push({ kind: 'file', name: f.name, path: f.path ?? f.name, size: f.size_bytes })
+    } else {
+      const dirName = rel.slice(0, slash)
+      dirs.set(dirName, (dirs.get(dirName) ?? 0) + 1)
+    }
+  }
+
+  const dirRows: DirEntry[] = Array.from(dirs.entries()).map(([name, count]) => ({
+    kind: 'dir', name, path: prefix + name, count,
+  }))
+
+  // Sort each group separately, then dirs first
+  const cmpFiles = (a: FileRow, b: FileRow) => {
+    const cmp = sort === 'name' ? a.name.localeCompare(b.name) : a.size - b.size
+    return sortDir === 'asc' ? cmp : -cmp
+  }
+  dirRows.sort((a, b) => a.name.localeCompare(b.name))
+  fileRows.sort(cmpFiles)
+
+  return [...dirRows, ...fileRows]
+}
+
+export function FileBrowser() {
+  const { activeFilePeer, fileLists, setActiveFilePeer, adapter, connectedPeers } = useWaste()
+  const [cwd, setCwd] = useState('')
+  const [search, setSearch] = useState('')
+  const [sort, setSort] = useState<SortKey>('name')
+  const [sortDir, setSortDir] = useState<SortDir>('asc')
+
+  if (!activeFilePeer) return null
+
+  const peer = connectedPeers.find(p => p.id === activeFilePeer)
+  const files = fileLists[activeFilePeer] ?? null
+
+  function download(path: string) {
+    if (adapter instanceof BrowserAdapter) {
+      adapter.requestGet(activeFilePeer!, path)
+    }
+  }
+
+  function toggleSort(key: SortKey) {
+    if (sort === key) setSortDir(d => d === 'asc' ? 'desc' : 'asc')
+    else { setSort(key); setSortDir('asc') }
+  }
+
+  function navigateUp() {
+    const parts = cwd.split('/')
+    parts.pop()
+    setCwd(parts.join('/'))
+  }
+
+  const rows = useMemo(() => {
+    if (!files) return []
+    return buildRows(files, cwd, search, sort, sortDir)
+  }, [files, cwd, search, sort, sortDir])
+
+  const cwdParts = cwd ? cwd.split('/') : []
+
+  return (
+    <div className="file-browser">
+      <div className="file-browser-header">
+        <span className="file-browser-title">Files · {peer?.alias ?? activeFilePeer.slice(0, 8)}</span>
+        <button className="file-browser-close" onClick={() => setActiveFilePeer(null)}>✕</button>
+      </div>
+
+      {files === null ? (
+        <div className="file-browser-empty">Loading…</div>
+      ) : files.length === 0 ? (
+        <div className="file-browser-empty">No files shared</div>
+      ) : (
+        <>
+          <div className="file-browser-toolbar">
+            <input
+              className="file-browser-search"
+              value={search}
+              onChange={e => setSearch(e.target.value)}
+              placeholder="search…"
+            />
+          </div>
+
+          {/* Breadcrumb */}
+          <div className="file-browser-breadcrumb">
+            <button onClick={() => setCwd('')} className="breadcrumb-seg">~</button>
+            {cwdParts.map((seg, i) => (
+              <span key={i}>
+                <span className="breadcrumb-sep">/</span>
+                <button
+                  className="breadcrumb-seg"
+                  onClick={() => setCwd(cwdParts.slice(0, i + 1).join('/'))}
+                >{seg}</button>
+              </span>
+            ))}
+          </div>
+
+          {/* Sort bar */}
+          <div className="file-browser-sortbar">
+            <button className={`sort-btn ${sort === 'name' ? 'active' : ''}`} onClick={() => toggleSort('name')}>
+              name {sort === 'name' ? (sortDir === 'asc' ? '↑' : '↓') : ''}
+            </button>
+            <button className={`sort-btn ${sort === 'size' ? 'active' : ''}`} onClick={() => toggleSort('size')}>
+              size {sort === 'size' ? (sortDir === 'asc' ? '↑' : '↓') : ''}
+            </button>
+          </div>
+
+          <ul className="file-list">
+            {cwd && !search && (
+              <li className="file-entry file-entry-dir" onClick={navigateUp}>
+                <span className="file-entry-icon">📁</span>
+                <span className="file-entry-name">..</span>
+              </li>
+            )}
+            {rows.length === 0 && (
+              <li className="file-browser-empty">no results</li>
+            )}
+            {rows.map(row => row.kind === 'dir' ? (
+              <li key={row.path} className="file-entry file-entry-dir" onClick={() => { setCwd(row.path); setSearch('') }}>
+                <span className="file-entry-icon">📁</span>
+                <span className="file-entry-name">{row.name}</span>
+                <span className="file-entry-size">{row.count} file{row.count !== 1 ? 's' : ''}</span>
+              </li>
+            ) : (
+              <li key={row.path} className="file-entry">
+                <span className="file-entry-icon">📄</span>
+                <span className="file-entry-name">{row.name}</span>
+                <span className="file-entry-size">{fmt(row.size)}</span>
+                <button className="file-entry-dl" onClick={() => download(row.path)}>↓</button>
+              </li>
+            ))}
+          </ul>
+        </>
+      )}
+    </div>
+  )
+}

web/src/components/FolderPicker.tsx

@@ -0,0 +1,58 @@
+import { useRef, useState } from 'react'
+import { useWaste } from '../store'
+
+export function FolderPicker() {
+  const { setSharedFiles, activeNetworkId, sharedFilesByNetwork } = useWaste()
+  const inputRef = useRef<HTMLInputElement>(null)
+  const [includeSubfolders, setIncludeSubfolders] = useState(true)
+
+  const current = activeNetworkId ? sharedFilesByNetwork[activeNetworkId] : undefined
+  const label = current && current.size > 0
+    ? `${current.size} file${current.size !== 1 ? 's' : ''} shared`
+    : null
+
+  function onChange(e: React.ChangeEvent<HTMLInputElement>) {
+    const fileList = e.target.files
+    if (!fileList || fileList.length === 0) return
+    const map = new Map<string, File>()
+    for (let i = 0; i < fileList.length; i++) {
+      const f = fileList[i]
+      const rel = (f as File & { webkitRelativePath?: string }).webkitRelativePath
+      // Strip the root folder name prefix (first path segment) so paths are relative to the picked folder
+      const path = rel ? rel.split('/').slice(1).join('/') : f.name
+      if (!includeSubfolders && path.includes('/')) continue
+      map.set(path, f)
+    }
+    setSharedFiles(map)
+    e.target.value = ''
+  }
+
+  return (
+    <div className="folder-picker">
+      <input
+        ref={inputRef}
+        type="file"
+        // @ts-expect-error webkitdirectory is non-standard
+        webkitdirectory=""
+        multiple
+        style={{ display: 'none' }}
+        onChange={onChange}
+      />
+      <button
+        className="folder-picker-btn"
+        onClick={() => inputRef.current?.click()}
+        title="Share a folder with peers on this network"
+      >
+        {label ?? '+ Share folder'}
+      </button>
+      <label className="folder-picker-subfolders">
+        <input
+          type="checkbox"
+          checked={includeSubfolders}
+          onChange={e => setIncludeSubfolders(e.target.checked)}
+        />
+        include subfolders
+      </label>
+    </div>
+  )
+}

web/src/components/MessagePane.tsx

@@ -1,11 +1,34 @@
 import { useEffect, useRef, useState } from 'react'
 import { useWaste } from '../store'
 
+const today = new Date()
+today.setHours(0, 0, 0, 0)
+const todayMs = today.getTime()
+
+function formatTs(ts: number): string {
+  const d = new Date(ts)
+  const time = d.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit', hour12: false })
+  if (ts >= todayMs) return time
+  return d.toLocaleDateString([], { month: 'short', day: 'numeric' }) + ' ' + time
+}
+
 export function MessagePane() {
-  const { messages, activeRoom, activeNetworkId, localPeer, connectedPeers, send } = useWaste()
+  const { messages, historyCutoff, activeRoom, activeNetworkId, localPeer, connectedPeers, knownPeers, send } = useWaste()
   const [draft, setDraft] = useState('')
   const bottomRef = useRef<HTMLDivElement>(null)
-  const roomMessages = messages[activeRoom] ?? []
+  const msgKey = activeNetworkId ? `${activeNetworkId}:${activeRoom}` : activeRoom
+  const roomMessages = messages[msgKey] ?? []
+  const cutoff = historyCutoff[msgKey] ?? 0
+
+  // Find the index of the first live message (ts > cutoff).
+  // The divider appears just before this index, or at the top if all are history.
+  const firstLiveIdx = cutoff > 0
+    ? roomMessages.findIndex(m => m.ts > cutoff)
+    : -1
+  // If all messages are history (no live yet), put divider at the start.
+  const dividerIdx = cutoff > 0
+    ? (firstLiveIdx === -1 ? 0 : firstLiveIdx)
+    : -1
 
   useEffect(() => {
     bottomRef.current?.scrollIntoView({ behavior: 'smooth' })
@@ -17,7 +40,6 @@ export function MessagePane() {
     if (!text || !activeNetworkId) return
 
     if (activeRoom.startsWith('dm:')) {
-      // Find peer ID from room name — stored as full ID in room key after "dm:"
       const toPeerID = activeRoom.slice(3)
       const peer = connectedPeers.find(p => p.id.startsWith(toPeerID) || p.id === toPeerID)
       if (peer) {
@@ -31,23 +53,37 @@ export function MessagePane() {
 
   function aliasFor(fromId: string) {
     if (fromId === localPeer?.id) return localPeer.alias
-    return connectedPeers.find(p => p.id === fromId)?.alias ?? fromId.slice(0, 8)
+    return connectedPeers.find(p => p.id === fromId)?.alias
+      ?? knownPeers[fromId]
+      ?? fromId.slice(0, 8)
   }
 
+  const roomLabel = activeRoom.startsWith('dm:')
+    ? `@ ${activeRoom.slice(3, 11)}…`
+    : `# ${activeRoom}`
+
   return (
     <main className="message-pane">
-      <div className="message-pane-header">
+      <div className="message-pane-header">{roomLabel}</div>
-        {activeRoom.startsWith('dm:') ? `@ ${activeRoom.slice(3, 11)}…` : `# ${activeRoom}`}
-      </div>
 
       <div className="messages">
+        {dividerIdx === 0 && (
+          <div className="history-divider"><span>earlier messages</span></div>
+        )}
         {roomMessages.map((msg, i) => {
           const mine = msg.from === localPeer?.id
+          const alias = aliasFor(String(msg.from))
+          const ts = formatTs(msg.ts)
           return (
-            <div key={msg.mid ?? i} className={`message ${mine ? 'mine' : ''}`}>
+            <div key={msg.mid ?? i}>
-              <span className="message-alias">{aliasFor(msg.from)}</span>
+              {i === dividerIdx && dividerIdx > 0 && (
-              <span className="message-text">{msg.text}</span>
+                <div className="history-divider"><span>earlier messages</span></div>
-              <span className="message-ts">{new Date(msg.ts).toLocaleTimeString()}</span>
+              )}
+              <div className={`message ${mine ? 'mine' : ''}`}>
+                <span className="message-ts">{ts}</span>
+                <span className="message-alias">{alias}</span>
+                <span className="message-text">{msg.text}</span>
+              </div>
             </div>
           )
         })}
@@ -58,7 +94,7 @@ export function MessagePane() {
         <input
           value={draft}
           onChange={e => setDraft(e.target.value)}
-          placeholder={`Message ${activeRoom}`}
+          placeholder={`Message ${roomLabel}`}
           autoComplete="off"
         />
         <button type="submit" disabled={!draft.trim()}>Send</button>

web/src/components/ShareManager.tsx

@@ -0,0 +1,118 @@
+import { useState, useRef } from 'react'
+import { useWaste } from '../store'
+
+interface ShareRecord {
+  name: string      // display name (folder name picked by user)
+  global: boolean   // true = all networks
+  networkId?: string
+}
+
+const STORAGE_KEY = 'waste_shares'
+
+function loadShares(): ShareRecord[] {
+  try {
+    return JSON.parse(localStorage.getItem(STORAGE_KEY) ?? '[]')
+  } catch {
+    return []
+  }
+}
+
+function saveShares(shares: ShareRecord[]) {
+  localStorage.setItem(STORAGE_KEY, JSON.stringify(shares))
+}
+
+export function ShareManager() {
+  const { activeNetworkId, setSharedFiles, sharedFilesByNetwork } = useWaste()
+  const [shares, setShares] = useState<ShareRecord[]>(loadShares)
+  const [includeSubfolders, setIncludeSubfolders] = useState(true)
+  const inputRef = useRef<HTMLInputElement>(null)
+
+  // Count files currently shared on active network
+  const current = activeNetworkId ? sharedFilesByNetwork[activeNetworkId] : undefined
+  const fileCount = current?.size ?? 0
+
+  function persist(next: ShareRecord[]) {
+    setShares(next)
+    saveShares(next)
+  }
+
+  function addShare(files: FileList, folderName: string) {
+    const map = new Map<string, File>()
+    for (let i = 0; i < files.length; i++) {
+      const f = files[i]
+      const rel = (f as File & { webkitRelativePath?: string }).webkitRelativePath
+      const path = rel ? rel.split('/').slice(1).join('/') : f.name
+      if (!includeSubfolders && path.includes('/')) continue
+      map.set(path, f)
+    }
+    setSharedFiles(map)
+
+    const record: ShareRecord = {
+      name: folderName,
+      global: true,
+      networkId: activeNetworkId ?? undefined,
+    }
+    persist([...shares.filter(s => s.name !== folderName), record])
+  }
+
+  function removeShare(name: string) {
+    persist(shares.filter(s => s.name !== name))
+    // Clear the in-memory share if it matches
+    setSharedFiles(new Map())
+  }
+
+  function onChange(e: React.ChangeEvent<HTMLInputElement>) {
+    const fileList = e.target.files
+    if (!fileList || fileList.length === 0) return
+    // Get folder name from first file's path
+    const first = fileList[0] as File & { webkitRelativePath?: string }
+    const folderName = first.webkitRelativePath?.split('/')[0] ?? 'folder'
+    addShare(fileList, folderName)
+    e.target.value = ''
+  }
+
+  return (
+    <div className="share-manager">
+      <input
+        ref={inputRef}
+        type="file"
+        // @ts-expect-error webkitdirectory is non-standard
+        webkitdirectory=""
+        multiple
+        style={{ display: 'none' }}
+        onChange={onChange}
+      />
+
+      {shares.length > 0 && (
+        <ul className="share-list">
+          {shares.map(s => (
+            <li key={s.name} className="share-item">
+              <span className="share-icon">📁</span>
+              <span className="share-name" title={s.name}>{s.name}</span>
+              <span className="share-scope">{s.global ? 'all nets' : 'this net'}</span>
+              <button className="share-repick" onClick={() => inputRef.current?.click()} title="Re-pick folder">↺</button>
+              <button className="share-remove" onClick={() => removeShare(s.name)} title="Remove share">✕</button>
+            </li>
+          ))}
+        </ul>
+      )}
+
+      <button
+        className="folder-picker-btn"
+        onClick={() => inputRef.current?.click()}
+        title="Share a folder with peers on this network"
+      >
+        {fileCount > 0 ? `${fileCount} file${fileCount !== 1 ? 's' : ''} shared` : '+ Share folder'}
+      </button>
+
+      <label className="folder-picker-subfolders">
+        <input
+          type="checkbox"
+          checked={includeSubfolders}
+          onChange={e => setIncludeSubfolders(e.target.checked)}
+        />
+        include subfolders
+      </label>
+    </div>
+  )
+}

web/src/components/Sidebar.tsx

@@ -1,38 +1,135 @@
+import { useState } from 'react'
 import { useWaste } from '../store'
+import type { PeerStatus } from '../store'
+import { ShareManager } from './ShareManager'
+import { Transfers } from './Transfers'
 
 function makeYawCard(id: string, alias: string): string {
   const nick = encodeURIComponent(alias.trim().slice(0, 40))
   return nick ? `yaw:${id}?n=${nick}` : `yaw:${id}`
 }
 
-export function Sidebar() {
+function connDot(status: PeerStatus | undefined): { color: string; label: string } {
-  const { localPeer, masterId, masterAlias, networks, activeNetworkId, activeRoom, setActiveRoom, setActiveNetwork, messages } = useWaste()
+  const ct = status?.candidateType
+  const cs = status?.connState
+  if (cs === 'failed' || cs === 'closed') return { color: '#e06060', label: 'failed' }
+  if (cs === 'connecting' || cs === 'new') return { color: '#c8a020', label: 'connecting…' }
+  if (ct === 'relay') return { color: '#c8a020', label: 'relayed (TURN)' }
+  if (ct === 'srflx') return { color: '#60c060', label: 'NAT punched' }
+  if (ct === 'host') return { color: '#60c060', label: 'direct (LAN)' }
+  if (cs === 'connected') return { color: '#60c060', label: 'connected' }
+  return { color: 'var(--muted)', label: 'unknown' }
+}
 
-  // Rooms = general + any DM threads that have messages
+function formatTs(ts: number | undefined): string {
-  const rooms = ['general']
+  if (!ts) return '—'
-  Object.keys(messages).forEach(r => {
+  return new Date(ts).toLocaleTimeString([], { hour: '2-digit', minute: '2-digit', second: '2-digit' })
-    if (r.startsWith('dm:') && !rooms.includes(r)) rooms.push(r)
+}
-  })
+
+export function Sidebar() {
+  const {
+    localPeer, masterId, masterAlias,
+    networks, activeNetworkId, activeRoom,
+    connectedPeers, peerStatus,
+    setActiveRoom, setActiveNetwork, messages, browseFiles, sendFileTo, adapterMode,
+    customRooms, createRoom, logout, send,
+  } = useWaste()
+  const [addingRoom, setAddingRoom] = useState(false)
+  const [newRoomName, setNewRoomName] = useState('')
+  const [addingNetwork, setAddingNetwork] = useState(false)
+  const [newNetName, setNewNetName] = useState('')
+  const [newNetAnchor, setNewNetAnchor] = useState('')
+
+  const netCustomRooms = activeNetworkId ? (customRooms[activeNetworkId] ?? []) : []
+  const rooms = ['general', ...netCustomRooms]
+  if (activeNetworkId) {
+    const prefix = `${activeNetworkId}:dm:`
+    Object.keys(messages).forEach(k => {
+      if (k.startsWith(prefix)) {
+        const r = k.slice(activeNetworkId.length + 1)
+        if (!rooms.includes(r)) rooms.push(r)
+      }
+    })
+  }
+
+  function submitNewRoom(e: React.FormEvent) {
+    e.preventDefault()
+    if (newRoomName.trim()) createRoom(newRoomName)
+    setNewRoomName('')
+    setAddingRoom(false)
+  }
+
+  function submitNewNetwork(e: React.FormEvent) {
+    e.preventDefault()
+    const name = newNetName.trim()
+    if (!name) return
+    if (adapterMode === 'browser') {
+      // Persist to saved networks list in localStorage.
+      const anchor = newNetAnchor.trim() || localStorage.getItem('waste_anchor_url') || ''
+      const saved: Array<{name: string; anchor: string}> = JSON.parse(localStorage.getItem('waste_saved_networks') ?? '[]')
+      if (!saved.some(n => n.name === name && n.anchor === anchor)) {
+        saved.push({ name, anchor })
+        localStorage.setItem('waste_saved_networks', JSON.stringify(saved))
+      }
+    }
+    send({ type: 'join_network', network_name: name })
+    setNewNetName('')
+    setNewNetAnchor('')
+    setAddingNetwork(false)
+  }
 
   const displayAlias = localPeer?.alias ?? masterAlias ?? ''
   const displayId = localPeer?.id ?? masterId ?? ''
   const card = displayId ? makeYawCard(displayId, displayAlias) : null
 
+  function copyHangLink() {
+    const net = networks.find(n => n.network_id === activeNetworkId)
+    if (!net) return
+    const cfg = (window as unknown as { WASTE_CONFIG?: { signalURL?: string } }).WASTE_CONFIG
+    const anchor = cfg?.signalURL ?? ''
+    const payload = btoa(JSON.stringify({ network: net.network_name, anchor }))
+      .replace(/\+/g, '-').replace(/\//g, '_')
+    const url = `${window.location.origin}/#waste:${payload}`
+    navigator.clipboard?.writeText(url)
+  }
+
+  function handleLogout() {
+    const clearId = window.confirm('Also clear your identity keypair? (Cannot be undone — export a backup first if you want to keep it.)')
+    logout(clearId)
+  }
+
+  function openDM(peerId: string) {
+    setActiveRoom(`dm:${peerId}`)
+  }
+
+  function requestFiles(peerId: string) {
+    browseFiles(peerId)
+  }
+
   return (
     <nav className="sidebar">
-      <div
+      <div className="sidebar-identity">
-        className="sidebar-identity"
+        <div
-        title={card ?? undefined}
+          style={{ flex: 1, cursor: card ? 'pointer' : undefined }}
-        onClick={() => card && navigator.clipboard?.writeText(card)}
+          title={card ?? undefined}
-        style={{ cursor: card ? 'pointer' : undefined }}
+          onClick={() => card && navigator.clipboard?.writeText(card)}
-      >
+        >
-        <span className="alias">{displayAlias || '…'}</span>
+          <span className="alias">{displayAlias || '…'}</span>
-        <span className="peer-id">{displayId.slice(0, 16).replace(/(.{4})/g, '$1 ').trim()}</span>
+          <span className="peer-id">{displayId.slice(0, 16).replace(/(.{4})/g, '$1 ').trim()}</span>
-        {card && <span className="peer-id" style={{ fontSize: '9px', opacity: 0.5 }}>click to copy card</span>}
+        </div>
+        <button className="sidebar-logout" onClick={handleLogout} title="Leave network">⏻</button>
       </div>
 
       <div className="sidebar-section">
-        <span className="sidebar-label">Networks</span>
+        <div className="sidebar-label-row">
+          <span className="sidebar-label">Networks</span>
+          <span style={{ display: 'flex', gap: 2 }}>
+            {activeNetworkId && (
+              <button className="sidebar-add" onClick={copyHangLink} title="Copy hang link">🔗</button>
+            )}
+            <button className="sidebar-add" onClick={() => setAddingNetwork(v => !v)} title="Join network">+</button>
+          </span>
+        </div>
         {networks.map(n => (
           <button
             key={n.network_id}
@@ -42,10 +139,36 @@ export function Sidebar() {
             {n.network_name}
           </button>
         ))}
+        {addingNetwork && (
+          <form className="sidebar-new-room" onSubmit={submitNewNetwork}>
+            <input
+              autoFocus
+              value={newNetName}
+              onChange={e => setNewNetName(e.target.value)}
+              placeholder="network name"
+              onKeyDown={e => e.key === 'Escape' && (setAddingNetwork(false), setNewNetName(''))}
+            />
+            {adapterMode === 'browser' && (
+              <input
+                value={newNetAnchor}
+                onChange={e => setNewNetAnchor(e.target.value)}
+                placeholder="anchor URL (blank = current)"
+                className="mono"
+                style={{ fontSize: '0.75rem', marginTop: 4 }}
+              />
+            )}
+            <button type="submit" disabled={!newNetName.trim()} style={{ marginTop: 4, width: '100%', fontSize: '12px', padding: '3px 8px' }}>
+              Join
+            </button>
+          </form>
+        )}
       </div>
 
       <div className="sidebar-section">
-        <span className="sidebar-label">Rooms</span>
+        <div className="sidebar-label-row">
+          <span className="sidebar-label">Rooms</span>
+          <button className="sidebar-add" onClick={() => setAddingRoom(v => !v)} title="New room">+</button>
+        </div>
         {rooms.map(r => (
           <button
             key={r}
@@ -55,6 +178,71 @@ export function Sidebar() {
             {r.startsWith('dm:') ? `@ ${r.slice(3, 11)}…` : `# ${r}`}
           </button>
         ))}
+        {addingRoom && (
+          <form className="sidebar-new-room" onSubmit={submitNewRoom}>
+            <input
+              autoFocus
+              value={newRoomName}
+              onChange={e => setNewRoomName(e.target.value)}
+              placeholder="room-name"
+              onKeyDown={e => e.key === 'Escape' && (setAddingRoom(false), setNewRoomName(''))}
+            />
+          </form>
+        )}
+      </div>
+
+      {adapterMode === 'browser' && (
+        <div className="sidebar-section">
+          <span className="sidebar-label">Sharing</span>
+          <div style={{ padding: '4px 12px' }}><ShareManager /></div>
+        </div>
+      )}
+
+      <Transfers />
+
+      <div className="sidebar-section sidebar-peers">
+        <span className="sidebar-label">Peers · {connectedPeers.length + 1}</span>
+
+        {/* Self */}
+        <div className="peer-row peer-row-self">
+          <span className="peer-dot" style={{ background: 'var(--accent)' }} />
+          <span className="peer-row-alias">{displayAlias || '…'}</span>
+          <span className="peer-row-you">you</span>
+        </div>
+
+        {connectedPeers.length === 0 && (
+          <span className="sidebar-empty">no peers connected</span>
+        )}
+        {connectedPeers.map(p => {
+          const st = peerStatus[p.id]
+          const dot = connDot(st)
+          const tooltip = [
+            p.alias,
+            p.id,
+            `connection: ${dot.label}`,
+            st?.remoteAddress ? `remote: ${st.remoteAddress}` : null,
+            st?.lastSeen ? `last seen: ${formatTs(st.lastSeen)}` : null,
+          ].filter(Boolean).join('\n')
+          return (
+            <div key={p.id} className="peer-row" title={tooltip}>
+              <span className="peer-dot" style={{ background: dot.color }} />
+              <span className="peer-row-alias">{p.alias}</span>
+              <span className="peer-row-id">{p.id.slice(0, 8)}</span>
+              <span className="peer-row-actions">
+                <button className="peer-action" onClick={() => openDM(p.id)} title="DM">↩</button>
+                <button className="peer-action" onClick={() => requestFiles(p.id)} title="Browse files">⊞</button>
+                <label className="peer-action" title="Send file" style={{ cursor: 'pointer' }}>
+                  📎
+                  <input type="file" style={{ display: 'none' }} onChange={e => {
+                    const f = e.target.files?.[0]
+                    if (f) sendFileTo(p.id, f)
+                    e.target.value = ''
+                  }} />
+                </label>
+              </span>
+            </div>
+          )
+        })}
       </div>
     </nav>
   )

web/src/components/Transfers.tsx

@@ -0,0 +1,70 @@
+import { useWaste } from '../store'
+
+function fmt(bytes: number): string {
+  if (bytes < 1024) return `${bytes} B`
+  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(1)} KB`
+  return `${(bytes / (1024 * 1024)).toFixed(1)} MB`
+}
+
+export function Transfers() {
+  const { pendingOffers, fileProgress, resumableFiles, acceptOffer, rejectOffer, cancelTransfer, connectedPeers } = useWaste()
+
+  const hasPending = Object.keys(pendingOffers).length > 0
+  const hasActive = Object.keys(fileProgress).length > 0
+  const hasResumable = Object.keys(resumableFiles).length > 0
+
+  if (!hasPending && !hasActive && !hasResumable) return null
+
+  function alias(peerId: string) {
+    return connectedPeers.find(p => p.id === peerId)?.alias ?? peerId.slice(0, 8)
+  }
+
+  return (
+    <div className="sidebar-section">
+      <span className="sidebar-label">Transfers</span>
+
+      {hasResumable && (
+        <>
+          <span className="sidebar-label" style={{ fontSize: 10, opacity: 0.6 }}>resumable</span>
+          {Object.entries(resumableFiles).map(([sha256, f]) => {
+            const pct = f.size > 0 ? Math.round((f.offset / f.size) * 100) : 0
+            return (
+              <div key={sha256} className="transfer-row">
+                <span className="transfer-name" title={f.name}>{f.name}</span>
+                <span className="transfer-meta">{fmt(f.offset)} / {fmt(f.size)} · {alias(f.from)} · will resume on reconnect</span>
+                <div className="transfer-progress">
+                  <div className="transfer-progress-bar" style={{ width: `${pct}%`, opacity: 0.5 }} />
+                </div>
+              </div>
+            )
+          })}
+        </>
+      )}
+
+      {Object.entries(pendingOffers).map(([xid, offer]) => (
+        <div key={xid} className="transfer-row">
+          <span className="transfer-name" title={offer.name}>{offer.name}</span>
+          <span className="transfer-meta">{fmt(offer.size)} from {alias(offer.peerId)}</span>
+          <div className="transfer-actions">
+            <button className="transfer-btn accept" onClick={() => acceptOffer(offer.peerId, xid, offer.name, offer.size)}>Accept</button>
+            <button className="transfer-btn reject" onClick={() => rejectOffer(offer.peerId, xid)}>Reject</button>
+          </div>
+        </div>
+      ))}
+
+      {Object.entries(fileProgress).map(([xid, p]) => {
+        const pct = p.total > 0 ? Math.round((p.received / p.total) * 100) : 0
+        return (
+          <div key={xid} className="transfer-row">
+            <span className="transfer-name" title={p.name}>{p.name}</span>
+            <span className="transfer-meta">{fmt(p.received)} / {fmt(p.total)} · {alias(p.peerId)}</span>
+            <div className="transfer-progress">
+              <div className="transfer-progress-bar" style={{ width: `${pct}%` }} />
+            </div>
+            <button className="transfer-btn reject" onClick={() => cancelTransfer(p.peerId, xid, 'recv')}>Cancel</button>
+          </div>
+        )
+      })}
+    </div>
+  )
+}

web/src/pages/Chat.tsx

@@ -1,13 +1,15 @@
 import { Sidebar } from '../components/Sidebar'
 import { MessagePane } from '../components/MessagePane'
-import { PeerList } from '../components/PeerList'
+import { FileBrowser } from '../components/FileBrowser'
+import { useWaste } from '../store'
 
 export function Chat() {
+  const { activeFilePeer } = useWaste()
   return (
-    <div className="chat-layout">
+    <div className={`chat-layout${activeFilePeer ? ' has-file-browser' : ''}`}>
       <Sidebar />
       <MessagePane />
-      <PeerList />
+      {activeFilePeer && <FileBrowser />}
     </div>
   )
 }

web/src/pages/Onboarding.tsx

@@ -14,11 +14,17 @@ interface Props {
 //   ?a=<url>              anchor URL hint
 function parseInviteParams(): { network: string; netHash: string; anchor: string; inviteString: string } {
   const p = new URLSearchParams(window.location.search)
-  const inviteString = p.get('invite') ?? ''
+  let inviteString = p.get('invite') ?? ''
   let network = p.get('n') ?? p.get('network') ?? ''
   let netHash = p.get('net') ?? ''
   let anchor = p.get('a') ?? p.get('anchor') ?? ''
 
+  // Hash-based hang link: https://host/#waste:eyJ... (opaque, not sent to server)
+  const hash = window.location.hash.slice(1) // strip leading #
+  if (!inviteString && hash.startsWith('waste:')) {
+    inviteString = hash
+  }
+
   if (inviteString.startsWith('waste:')) {
     try {
       const json = JSON.parse(atob(inviteString.slice(6).replace(/-/g, '+').replace(/_/g, '/')))
@@ -61,16 +67,43 @@ export function Onboarding({ status }: Props) {
     if (inv) setInviteString(inv)
   }, [])
 
+  // Auto-rejoin when adapter is ready and we have saved session state
+  useEffect(() => {
+    if (adapterMode !== 'browser' || status !== 'connected') return
+    const { network: n, netHash: nh } = parseInviteParams()
+    if (n || nh) return // explicit invite — don't auto-join, show form
+    // Rejoin all saved networks.
+    const saved: Array<{name: string; anchor: string}> = JSON.parse(localStorage.getItem('waste_saved_networks') ?? '[]')
+    if (saved.length > 0) {
+      saved.forEach(s => doJoin(s.name, ''))
+    } else {
+      // Legacy single-network fallback.
+      const savedNetwork = localStorage.getItem('waste_last_network')
+      if (savedNetwork) doJoin(savedNetwork, '')
+    }
+  }, [adapterMode, status]) // eslint-disable-line react-hooks/exhaustive-deps
+
   function joinNetwork(e: React.FormEvent) {
     e.preventDefault()
-    const name = network.trim()
+    doJoin(network.trim(), netHash.trim())
-    const hash = netHash.trim()
+  }
+
+  function doJoin(name: string, hash: string) {
     if (!name && !hash) return
 
-    // In browser mode: persist anchor URL choice and pass it via localStorage
     if (adapterMode === 'browser') {
       localStorage.setItem('waste_anchor_url', anchorUrl)
       if (nick.trim()) localStorage.setItem('waste_nick', nick.trim())
+      if (name) {
+        // Persist to saved networks list.
+        const saved: Array<{name: string; anchor: string}> = JSON.parse(localStorage.getItem('waste_saved_networks') ?? '[]')
+        if (!saved.some(n => n.name === name)) {
+          saved.push({ name, anchor: anchorUrl })
+          localStorage.setItem('waste_saved_networks', JSON.stringify(saved))
+        }
+        // Keep legacy key for backward compat.
+        localStorage.setItem('waste_last_network', name)
+      }
     }
 
     if (hash.length === 64 && !name) {
@@ -103,6 +136,7 @@ export function Onboarding({ status }: Props) {
   }
 
   const shortId = masterId ? masterId.slice(0, 16).replace(/(.{4})/g, '$1 ').trim() : null
+  const savedNetworks: Array<{name: string; anchor: string}> = JSON.parse(localStorage.getItem('waste_saved_networks') ?? '[]')
 
   // ── disconnected / connecting ────────────────────────────────────────────────
   if (status !== 'connected') {
@@ -141,8 +175,21 @@ export function Onboarding({ status }: Props) {
         </div>
       )}
 
+      {adapterMode === 'browser' && savedNetworks.length > 0 && (
+        <div className="saved-networks">
+          <span className="join-label">Saved networks</span>
+          <div className="saved-network-chips">
+            {savedNetworks.map(n => (
+              <button key={n.name} className="network-chip" type="button" onClick={() => doJoin(n.name, '')}>
+                {n.name}
+              </button>
+            ))}
+          </div>
+        </div>
+      )}
+
       <form onSubmit={joinNetwork} className="join-form">
-        <label className="join-label">Join a network</label>
+        <label className="join-label">{savedNetworks.length > 0 ? 'Join another network' : 'Join a network'}</label>
 
         {adapterMode === 'browser' && (
           <input

web/src/store/index.ts

@@ -1,5 +1,12 @@
 import { create } from 'zustand'
-import type { PeerInfo, NetworkInfo, ChatMessage, FileEntry, IpcMessage } from '../types'
+import type { PeerInfo, NetworkInfo, ChatMessage, FileEntry, IpcMessage, PeerConnState, CandidateType } from '../types'
+
+export interface PeerStatus {
+  connState?: PeerConnState
+  candidateType?: CandidateType
+  remoteAddress?: string
+  lastSeen?: number
+}
 import { DaemonAdapter } from '../adapter/daemon'
 import { BrowserAdapter } from '../adapter/browser'
 
@@ -22,17 +29,36 @@ interface WasteState {
 
   // peers
   connectedPeers: PeerInfo[]
+  knownPeers: Record<string, string> // id → alias for historical peers
 
   // chat — keyed by room
   messages: Record<string, ChatMessage[]>
+  // rooms for which we have received history: room → ts of last history message
+  historyCutoff: Record<string, number>
   activeRoom: string
+  // user-created rooms, keyed by networkId
+  customRooms: Record<string, string[]>
 
   // file listings — keyed by peer id
   fileLists: Record<string, FileEntry[]>
 
+  // per-peer connection status (browser mode) and last-seen timestamps
+  peerStatus: Record<string, PeerStatus>
+
   // identity backup export result (cleared when consumed)
   exportedBackup: string | null
 
+  // file browser state
+  activeFilePeer: string | null
+  // shared files keyed by networkId
+  sharedFilesByNetwork: Record<string, Map<string, File>>
+  // incoming offers awaiting accept/reject: xid → offer info
+  pendingOffers: Record<string, { peerId: string; name: string; size: number }>
+  // active in-progress transfers: xid → progress
+  fileProgress: Record<string, { peerId: string; name: string; received: number; total: number }>
+  // partial downloads found on daemon startup: sha256 → info
+  resumableFiles: Record<string, { name: string; from: string; size: number; offset: number }>
+
   // actions
   connect: (url: string) => void
   connectBrowser: () => void
@@ -40,6 +66,15 @@ interface WasteState {
   send: (msg: IpcMessage) => void
   setActiveNetwork: (id: string) => void
   setActiveRoom: (room: string) => void
+  setActiveFilePeer: (peerId: string | null) => void
+  setSharedFiles: (files: Map<string, File>, networkId?: string) => void
+  browseFiles: (peerId: string) => void
+  sendFileTo: (peerId: string, file: File) => void
+  acceptOffer: (peerId: string, xid: string, name: string, size: number) => void
+  rejectOffer: (peerId: string, xid: string) => void
+  cancelTransfer: (peerId: string, xid: string, direction: 'recv' | 'send') => void
+  createRoom: (name: string) => void
+  logout: (clearIdentity: boolean) => void
   handleEvent: (msg: IpcMessage) => void
 }
 
@@ -53,10 +88,19 @@ export const useWaste = create<WasteState>((set, get) => ({
   networks: [],
   activeNetworkId: null,
   connectedPeers: [],
+  knownPeers: {},
   messages: {},
+  historyCutoff: {},
   activeRoom: 'general',
+  customRooms: {},
   fileLists: {},
   exportedBackup: null,
+  peerStatus: {},
+  activeFilePeer: null,
+  sharedFilesByNetwork: {},
+  pendingOffers: {},
+  fileProgress: {},
+  resumableFiles: {},
 
   connect(url: string) {
     const adapter = new DaemonAdapter(url)
@@ -93,10 +137,88 @@ export const useWaste = create<WasteState>((set, get) => ({
     set({ activeRoom: room })
   },
 
+  setActiveFilePeer(peerId) {
+    set({ activeFilePeer: peerId })
+  },
+
+  setSharedFiles(files, networkId) {
+    const netId = networkId ?? get().activeNetworkId ?? ''
+    if (!netId) return
+    set(s => ({ sharedFilesByNetwork: { ...s.sharedFilesByNetwork, [netId]: files } }))
+    const a = get().adapter
+    if (a instanceof BrowserAdapter) a.setSharedFiles(files)
+  },
+
+  sendFileTo(peerId, file) {
+    const a = get().adapter
+    if (a instanceof BrowserAdapter) a.sendFileTo(peerId, file)
+  },
+
+  acceptOffer(peerId, xid, name, size) {
+    set(s => {
+      const p = { ...s.pendingOffers }; delete p[xid]
+      return { pendingOffers: p, fileProgress: { ...s.fileProgress, [xid]: { peerId, name, received: 0, total: size } } }
+    })
+    const a = get().adapter
+    if (a instanceof BrowserAdapter) a.acceptOffer(peerId, xid, name, size)
+  },
+
+  rejectOffer(peerId, xid) {
+    set(s => { const p = { ...s.pendingOffers }; delete p[xid]; return { pendingOffers: p } })
+    const a = get().adapter
+    if (a instanceof BrowserAdapter) a.rejectOffer(peerId, xid)
+  },
+
+  cancelTransfer(peerId, xid, direction) {
+    set(s => {
+      const fp = { ...s.fileProgress }; delete fp[xid]
+      return { fileProgress: fp }
+    })
+    const a = get().adapter
+    if (a instanceof BrowserAdapter) a.cancelTransfer(peerId, xid, direction)
+  },
+
+  logout(clearIdentity) {
+    const a = get().adapter
+    if (a instanceof DaemonAdapter) a.disconnect()
+    else if (a instanceof BrowserAdapter) a.disconnect()
+    localStorage.removeItem('waste_last_network')
+    localStorage.removeItem('waste_nick')
+    localStorage.removeItem('waste_anchor_url')
+    if (clearIdentity) localStorage.removeItem('waste_seed')
+    window.location.reload()
+  },
+
+  createRoom(name) {
+    const netId = get().activeNetworkId
+    if (!netId || !name.trim()) return
+    const key = name.trim().toLowerCase().replace(/\s+/g, '-')
+    set(s => {
+      const existing = s.customRooms[netId] ?? []
+      if (existing.includes(key)) return s
+      return {
+        customRooms: { ...s.customRooms, [netId]: [...existing, key] },
+        activeRoom: key,
+      }
+    })
+  },
+
+  browseFiles(peerId) {
+    const a = get().adapter
+    if (a instanceof BrowserAdapter) {
+      a.requestBrowse(peerId)
+    } else {
+      get().send({ type: 'get_file_list', peer_id: peerId as unknown as import('../types').PeerID })
+    }
+    set({ activeFilePeer: peerId })
+  },
+
   handleEvent(msg) {
     switch (msg.type) {
       case 'state_snapshot': {
         const networks = msg.networks ?? []
+        const knownPeers: Record<string, string> = {}
+        for (const p of msg.known_peers ?? []) knownPeers[p.id] = p.alias
         set({
           masterAlias: msg.master_alias ?? null,
           masterId: msg.master_id ?? null,
@@ -104,6 +226,7 @@ export const useWaste = create<WasteState>((set, get) => ({
           networks,
           connectedPeers: msg.connected_peers ?? [],
           activeNetworkId: networks[0]?.network_id ?? null,
+          knownPeers,
         })
         break
       }
@@ -135,7 +258,7 @@ export const useWaste = create<WasteState>((set, get) => ({
         if (msg.peer) {
           set(s => ({
             connectedPeers: s.connectedPeers.some(p => p.id === msg.peer!.id)
-              ? s.connectedPeers
+              ? s.connectedPeers.map(p => p.id === msg.peer!.id ? { ...p, ...msg.peer } : p)
               : [...s.connectedPeers, msg.peer!],
           }))
         }
@@ -160,19 +283,66 @@ export const useWaste = create<WasteState>((set, get) => ({
       case 'message_received': {
         if (msg.message) {
           const m = msg.message
-          const room = m.room
+          const key = `${msg.network_id}:${m.room}`
+          const fromId = String(m.from)
           set(s => {
-            const existing = s.messages[room] ?? []
+            const existing = s.messages[key] ?? []
             if (m.mid && existing.some(e => e.mid === m.mid)) return s
-            return { messages: { ...s.messages, [room]: [...existing, m] } }
+            const prev = s.peerStatus[fromId] ?? {}
+            return {
+              messages: { ...s.messages, [key]: [...existing, m] },
+              peerStatus: { ...s.peerStatus, [fromId]: { ...prev, lastSeen: m.ts } },
+            }
           })
         }
         break
       }
+      case 'peer_status': {
+        const pid = String(msg.peer_id)
+        set(s => {
+          const prev = s.peerStatus[pid] ?? {}
+          return {
+            peerStatus: {
+              ...s.peerStatus,
+              [pid]: {
+                ...prev,
+                ...(msg.conn_state ? { connState: msg.conn_state } : {}),
+                ...(msg.candidate_type ? { candidateType: msg.candidate_type } : {}),
+                ...(msg.remote_address !== undefined ? { remoteAddress: msg.remote_address } : {}),
+              },
+            },
+          }
+        })
+        break
+      }
       case 'identity_exported': {
         if (msg.backup) set({ exportedBackup: msg.backup })
         break
       }
+      case 'incoming_file': {
+        if (msg.peer_id && msg.offer) {
+          const { xid, name, size } = msg.offer
+          set(s => ({ pendingOffers: { ...s.pendingOffers, [xid]: { peerId: String(msg.peer_id), name, size } } }))
+        }
+        break
+      }
+      case 'file_progress': {
+        if (msg.transfer_id && msg.peer_id) {
+          const xid = msg.transfer_id
+          set(s => ({
+            fileProgress: {
+              ...s.fileProgress,
+              [xid]: {
+                peerId: String(msg.peer_id),
+                name: msg.offer?.name ?? xid,
+                received: msg.bytes_received ?? 0,
+                total: msg.total_bytes ?? 0,
+              },
+            },
+          }))
+        }
+        break
+      }
       case 'file_list': {
         if (msg.peer_id && msg.files) {
           set(s => ({
@@ -181,6 +351,48 @@ export const useWaste = create<WasteState>((set, get) => ({
         }
         break
       }
+      case 'file_complete': {
+        // Always clear progress — transfer_id is the xid in daemon mode; offer.xid in browser mode.
+        const xid = msg.transfer_id ?? msg.offer?.xid
+        if (xid) {
+          set(s => { const fp = { ...s.fileProgress }; delete fp[xid]; return { fileProgress: fp } })
+        }
+        // Browser mode: trigger download via anchor click.
+        if (msg.path && msg.offer?.name) {
+          const a = document.createElement('a')
+          a.href = msg.path
+          a.download = msg.offer.name
+          a.click()
+        }
+        break
+      }
+      case 'resumable_transfers': {
+        const files = (msg.resumable_files ?? []) as Array<{ name: string; sha256: string; from: string; size: number; offset: number }>
+        if (files.length === 0) break
+        const byHash: Record<string, { name: string; from: string; size: number; offset: number }> = {}
+        for (const f of files) byHash[f.sha256] = { name: f.name, from: f.from, size: f.size, offset: f.offset }
+        set(s => ({ resumableFiles: { ...s.resumableFiles, ...byHash } }))
+        break
+      }
+      case 'history_loaded': {
+        const room = msg.room
+        const incoming = (msg.messages ?? []) as ChatMessage[]
+        if (!room || incoming.length === 0) break
+        const key = `${msg.network_id}:${room}`
+        set(s => {
+          const existing = s.messages[key] ?? []
+          const existingMids = new Set(existing.map(m => m.mid).filter(Boolean))
+          const fresh = incoming.filter(m => !m.mid || !existingMids.has(m.mid))
+          if (fresh.length === 0) return s
+          const merged = [...fresh, ...existing].sort((a, b) => a.ts - b.ts)
+          const cutoff = fresh[fresh.length - 1]?.ts ?? 0
+          return {
+            messages: { ...s.messages, [key]: merged },
+            historyCutoff: { ...s.historyCutoff, [key]: cutoff },
+          }
+        })
+        break
+      }
     }
   },
 }))

web/src/types.ts

@@ -29,6 +29,12 @@ export interface ChatMessage {
 export interface FileEntry {
   name: string
   size_bytes: number
+  path?: string  // relative path including filename, e.g. "docs/report.pdf"
+}
+
+export interface ShareEntry {
+  path: string
+  networks: string[]  // ["*"] = global
 }
 
 export interface FileOffer {
@@ -40,6 +46,9 @@ export interface FileOffer {
 
 // ── IPC message types ─────────────────────────────────────────────────────────
 
+export type CandidateType = 'host' | 'srflx' | 'relay' | 'unknown'
+export type PeerConnState = 'new' | 'connecting' | 'connected' | 'disconnected' | 'failed' | 'closed'
+
 export type IpcMsgType =
   // commands
   | 'send_message'
@@ -52,6 +61,9 @@ export type IpcMsgType =
   | 'get_file_list'
   | 'export_identity'
   | 'import_identity'
+  | 'add_share'
+  | 'remove_share'
+  | 'list_shares'
   // events
   | 'state_snapshot'
   | 'message_received'
@@ -67,7 +79,13 @@ export type IpcMsgType =
   | 'invite_generated'
   | 'identity_exported'
   | 'identity_imported'
+  | 'shares_list'
+  | 'peer_status'
   | 'error'
+  | 'history_loaded'
+  | 'room_created'
+  | 'create_room'
+  | 'resumable_transfers'
 
 export interface IpcMessage {
   type: IpcMsgType
@@ -99,9 +117,20 @@ export interface IpcMessage {
   master_id?: string
   local_peer?: PeerInfo
   connected_peers?: PeerInfo[]
+  known_peers?: PeerInfo[]
   rooms?: string[]
   networks?: NetworkInfo[]
   error_message?: string
   invite?: string
   files?: FileEntry[]
+  shares?: ShareEntry[]
+  networks_filter?: string[]  // for add_share
+  // peer_status
+  conn_state?: PeerConnState
+  candidate_type?: CandidateType
+  remote_address?: string
+  // history_loaded
+  messages?: ChatMessage[]
+  // resumable_transfers
+  resumable_files?: Array<{ name: string; sha256: string; from: string; size: number; offset: number }>
 }