Initial build: typo, a typing test built from your own code

No backend, no build step -- static HTML/CSS/JS, themed identically to
flit/wisp (same CSS vars, same "> " title prefix, same dark/mono/green
aesthetic). Snippets are real, shipped code pulled from six repos in
this family (flit, wisp, keep, stash, delve-term, goonk) rather than
generic pangrams.

Stats: WPM = (correct chars / 5) / minutes elapsed, timing from first
keystroke not page load. Accuracy = correct keystrokes / total
keystrokes tracked at the keydown level (comparing the pressed key
against the exact next expected character before it's inserted), so
backspaced-over mistakes still count against it rather than only
diffing the final text. Keys/sec updates live via a 200ms tick.
Tabs in source are rendered as two spaces so players never need to
press Tab -- sidesteps a browser default-Tab-moves-focus fight
entirely rather than fighting it with preventDefault.

Verified via simulated typing sessions (puppeteer), not just static
review -- both an artificially fast pass (confirms the math is
internally consistent: 308 correct/310 total keystrokes -> 99%,
matches displayed) and a realistic ~60wpm-paced pass (confirms no
unit-conversion bug that only a slow, deliberate typist would hit
tests-at-lightspeed wouldn't surface). That process caught two real
bugs before they'd have hit a real player:

1. A stray `tabindex="0"` on the code display let the browser's
   native click-to-focus behavior steal focus away from the hidden
   textarea before our own focus() call ran -- typing silently did
   nothing. Fixed by removing the tabindex and switching to a
   mousedown+preventDefault handler instead of click.
2. The help modal's CSS set `display: flex` unconditionally, which
   (author CSS always beats the UA stylesheet) overrode the `hidden`
   attribute's default `display: none` -- the modal was invisibly
   covering the entire viewport and intercepting every click, at all
   times, whether or not it had been opened. Fixed with an explicit
   `.modal-overlay:not([hidden])` rule.

Also verified the actual Docker image builds and serves correctly
(nginx, no build stage needed since there's nothing to compile).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

.gitea/workflows/docker.yml

@@ -0,0 +1,53 @@
+name: Docker
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Derive image name and tags
+        id: meta
+        shell: bash
+        run: |
+          set -euo pipefail
+          SERVER_URL="${GITHUB_SERVER_URL:-${GITEA_SERVER_URL:-}}"
+          REPO="${GITHUB_REPOSITORY:-${GITEA_REPOSITORY:-}}"
+          SHA="${GITHUB_SHA:-${GITEA_SHA:-}}"
+          if [[ -z "${SERVER_URL}" || -z "${REPO}" || -z "${SHA}" ]]; then
+            echo "Missing SERVER_URL/REPO/SHA env vars." >&2; exit 1
+          fi
+          HOST=$(echo "${SERVER_URL}" | sed 's|https://||;s|http://||')
+          IMAGE=$(echo "${HOST}/${REPO}" | tr '[:upper:]' '[:lower:]')
+          SHORT_SHA=$(echo "${SHA}" | cut -c1-7)
+          echo "host=${HOST}" >> "$GITHUB_OUTPUT"
+          echo "image=${IMAGE}" >> "$GITHUB_OUTPUT"
+          echo "short_sha=${SHORT_SHA}" >> "$GITHUB_OUTPUT"
+
+      - name: Log in to Gitea container registry
+        uses: docker/login-action@v3
+        with:
+          registry: ${{ steps.meta.outputs.host }}
+          username: ${{ github.actor }}
+          # Create a Gitea PAT with packages:write scope and add it as a
+          # repository secret named TKNTKN (Settings → Secrets)
+          password: ${{ secrets.TKNTKN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          context: .
+          file: Dockerfile
+          push: true
+          tags: |
+            ${{ steps.meta.outputs.image }}:latest
+            ${{ steps.meta.outputs.image }}:${{ steps.meta.outputs.short_sha }}