Adds a second, narrower credential type alongside UPLOAD_PASSWORD: an
admin (ADMIN_PASSWORD-gated, /admin) can mint time-boxed, use-limited,
independently revocable invite links (?invite=<token>) that skip the
password screen for one-off sharing without handing out the master
password. Invite consumption is an atomic check-and-increment to avoid
a race on single-use invites; admin surface 503s (not boot failure)
when ADMIN_PASSWORD is unset.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
README covers the pitch and how this differs from flit (synchronous,
zero server storage) and zipline (persistent hosting). IMPLEMENTATION
covers the crypto scheme (key-in-fragment, same primitives as
flit/waste-go), storage shape, and the deletion-race problem —
delete-on-first-byte-served is the wrong default (see Firefox Send's
history with this exact bug); confirm-then-delete with a TTL backstop
is the fix.
No code yet — design stage.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
