Paul HittandClaude Opus 4.8 0e89003cc0 The chat took half the screen, and the status control was unfindable
**Three panels became a menu.** Disappearing messages, snooze, remind-me and
send-later were four blocks of chips stacked above the messages — in a
conversation you had opened to read, they took half the screen. The controls are
behind ⋯ now.

🔴 **What stays on the thread is the STATE, in one line.** A timer both people
are deleting on, a snooze, a pending reminder, a queued message — those are facts
about the conversation, and a fact you must open a menu to discover is one you
will not rely on. Absent entirely when nothing is set, so an ordinary chat
carries no chrome at all.

⚠️ "Send later" only appears when the composer has something in it. Offered
against an empty box it is a control whose only possible effect is nothing.

**Status was at the bottom of Account, under the address card, as four
unlabelled chips.** It is directly under the profile picture now, with a heading
and a line saying what each state does to other people. The person who asked for
the feature could not find it, which is the same as it not being there.

🔴 **And it showed a guess.** The state defaulted to "online" and nothing ever
read the real value, so the screen showed the default rather than what contacts
could see. It loads from the relay now — an empty body on that route is a read,
so no new endpoint was needed.

engine 177, client 96, app 46.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-29 14:22:19 -04:00
2026-08-21 18:22:30 -04:00
2026-08-21 18:22:30 -04:00
2026-08-21 18:22:30 -04:00
2026-08-21 18:22:30 -04:00
2026-08-21 18:22:30 -04:00

Flamenet Messenger — Android

The Android app, and the two libraries under it.

engine/   the protocol: X3DH, Double Ratchet, sealed sender, safety numbers,
          key transparency. Plain Kotlin/JVM — no Android in it at all.
client/   the relay transport: HTTP, auth, the §8 routes.
app/      the Compose app.
interop/  the cross-engine driver; not shipped.

engine and client are deliberately plain JVM libraries. The protocol has nothing to do with Android, and keeping it off the platform means their tests run anywhere a JVM does — no SDK, no emulator, no device, which is also what lets them gate in CI on Linux:

./gradlew :engine:test :client:test

The app's own unit tests need the Android SDK but still no emulator (Robolectric):

./gradlew :app:testDebugUnitTest

Where it stands

PARITY.md is the definition of done for this app — read that, not this. Every row there names the iOS file it came from so it can be re-checked rather than trusted. Headlines as of 2026-08-28: messaging, groups, attachments, voice notes, stories, calls, sealed sender, key transparency and the encrypted vault are built and tested; a cross-platform round trip against iOS was verified on 2026-08-26.

⚠️ This file said "Nothing here is an app yet" until 2026-08-28, above a tree containing the finished app — the README described the repository as it was when the engine landed and nothing updated it as the app grew around it. If a claim here ever disagrees with PARITY.md or with the tree, believe those, and fix this.

Why the engine came first, and is held to the vectors

An Android client needs the protocol implemented a third time, and the third implementation is the one that finds the places where the specification says less than the two existing engines quietly agreed on — but only if it is written against the spec and the published vectors rather than against a reading of our own Swift and JavaScript. So the engine is held to test/vectors/protocol-v1.json in flamenet-e2e — the same file the other two engines are checked against, read from that repository rather than copied here, because a copied vector file drifts and a drifting vector file stops being a check. PublishedVectorsTest looks for it beside this checkout and fails loudly if it cannot find it; FLAMENET_VECTORS overrides the search.

Two implementations that agree may both be wrong in the same way, especially when one was written while reading the other. The audit-path ordering in §19 is the worked example: a top-down reading of a bottom-up path produces the correct root for every left-spine index, so it passes any test that only checks index 0. The vector file pins a right-descending index for that reason, and the Kotlin tests assert both that the published path verifies and that the same path reversed does not.

If this engine ever disagrees with the file, the interesting question is which of the three is wrong — not this one by default.

Contributing and security

  • CONTRIBUTING.md — building (JDK 21, JAVA_HOME is not optional on a Mac), the test gate, and the platform traps that cost an hour each.
  • PARITY.md — what iOS does, what this does, and what is left. It is the definition of done for this app.
  • SECURITY.md — threat model and where to send a vulnerability report. Not an issue tracker matter: security@flamenetmessenger.com.
S
Description
Flamenet Messenger for Android — the Kotlin engine, held to the published protocol vectors. No app yet. MIT.
Readme MIT
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