`android/ffi` is to Android what `desktop/src-tauri/src/commands/` is to the
desktop: a shim over the shared core holding no logic of its own. Third workspace
member, so the desktop lane's `cargo clippy --all-targets` compiles and lints it
— which until the Android lane lands (step 5) is the only thing that does.
Three decisions worth stating.
MIRRORED RECORDS, NOT DERIVES ON THE CORE. The core's model structs are serde
shapes contracted with the shared Vue frontend, and one of them holds a
serde_json::Value, which has no uniffi representation. Hanging uniffi derives on
them would couple two unrelated consumers to one definition. The cost of
mirroring is drift — an Android client quietly missing a field the desktop
gained — so every conversion destructures the core struct exhaustively. Add a
field to core::local::models::Note and this crate stops compiling until Android
is told what to do with it.
NoteEdit IS A LIST, NOT A STRUCT OF NULLABLE FIELDS. The store's patch format
distinguishes three states: leave alone, set, and clear to null. Kotlin cannot
express the third with a nullable field — `title = null` in a data class is
indistinguishable from `title` unset — so the editor could never clear a title.
Explicit Clear* variants say it out loud and give Kotlin a sealed class.
ASYNC IS TOKIO-BACKED, AND CANCELLATION ALREADY WORKED. Exported async methods
become Kotlin suspend functions. When a coroutine is cancelled uniffi drops the
future, and no async path in the core holds the store lock across an await —
a std MutexGuard isn't Send, so the compiler has been enforcing that all along.
A cancelled sync leaves the store consistent and simply hasn't stamped
last_sync_at, which is only written after both halves of a cycle succeed.
Also here:
* core gains Db::conn(). Every consumer was writing
`db.0.lock().map_err(|e| e.to_string())?` by hand, and worse, any helper
returning the guard had to NAME rusqlite::Connection — which would have made
rusqlite a dependency of a layer whose whole point is not knowing what the
store is made of. Same trap as the update.rs test module in step 1.
* The uniffi `cli` feature is gated behind our own `bindgen` feature. It drags
in clap, askama and goblin for a three-line binary, and the desktop lane
should not compile a code generator it never runs.
* The bindgen binary lives in this workspace on purpose: generated bindings and
the linked uniffi runtime are two halves of one ABI, and compiling the
generator against the same dependency keeps them in step by construction.
That is why ci-rust-android ships no uniffi-bindgen.
Tests cover the round trip the Android skeleton needs (open a store in a
directory that does not exist yet, write a note, read it back), that a body-only
note still has a display_title, that set and clear are genuinely different
edits, and that an unlinked app reports NotLinked rather than an error.
Known and deliberate: the workspace sets panic = "abort", so a panic crossing the
FFI aborts instead of arriving in Kotlin as an exception. Same behaviour the
desktop already has; noted in the crate header rather than silently changed.
Scribe #2733.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
ThoughtSync
Self-hosted personal thought-capture web app in the FabledSword family — a
Google-Keep-style masonry post-it board for capturing disparate thoughts in
under a second, designed to grow into a lightweight second brain (labels, search,
[[wiki-links]], graph).
- Stack: Quart (async Python) + Vue 3 + PostgreSQL, Docker, Fabled-Git CI.
- Auth: native email + password (signed-cookie sessions). Multi-user with the family owner + direct-share + group-share ACL.
- Web-first. An Android companion is a later, conditional milestone.
Layout
src/thoughtsync/ Quart app (app factory, auth, models, ACL, config, db)
alembic/ async migrations (schema built via `alembic upgrade head`)
tests/ DB-free unit tests (pytest)
frontend/ Vue 3 + Vite + TypeScript + Tailwind SPA
Dockerfile 2-stage build (Vue -> python:3.12-slim runtime)
docker-compose.yml local app + Postgres stack
Development
Backend (needs a Postgres reachable at THOUGHTSYNC_DATABASE_URL):
pip install -e ".[dev]"
alembic upgrade head
hypercorn 'thoughtsync.app:create_app()' --bind 0.0.0.0:5000
Frontend (proxies /api to :5000):
cd frontend
npm install
npm run dev # http://localhost:5173
Or run it in Docker. Hot-reload dev stack (edit code, changes reload live) — Postgres + backend + Vite dev server, app at http://localhost:5173:
docker compose -f docker-compose.dev.yml up
Or the full production image (SPA baked in) at http://localhost:5000:
docker compose up --build
Deploy (self-host)
A complete two-container stack (app + Postgres) you can copy and run. Save it as
docker-compose.yml, change the two CHANGE_ME passwords (they must match), then
docker compose up -d:
services:
db:
image: postgres:16-alpine
restart: unless-stopped
environment:
POSTGRES_USER: thoughtsync
POSTGRES_PASSWORD: CHANGE_ME # change this
POSTGRES_DB: thoughtsync
volumes:
- thoughtsync-db:/var/lib/postgresql/data
healthcheck:
test: ["CMD-SHELL", "pg_isready -U thoughtsync"]
interval: 5s
timeout: 5s
retries: 10
app:
image: git.fabledsword.com/bvandeusen/thoughtsync:latest # :dev for the current dev build
restart: unless-stopped
depends_on:
db:
condition: service_healthy
environment:
THOUGHTSYNC_DATABASE_URL: postgresql+asyncpg://thoughtsync:CHANGE_ME@db:5432/thoughtsync
volumes:
- thoughtsync-data:/var/thoughtsync # uploaded images; omit if you don't use attachments
ports:
- "5000:5000"
volumes:
thoughtsync-db:
thoughtsync-data:
Then open http://<host>:5000 and register — the first account becomes the admin.
- Only
THOUGHTSYNC_DATABASE_URLis required.THOUGHTSYNC_SECRET_KEYis optional; if unset, a signing key is generated and persisted in the database (sessions survive restarts). - Uploaded images live under the
thoughtsync-datavolume at/var/thoughtsync. - The app waits for the database and runs migrations (
alembic upgrade head) automatically on start. - Image tags:
:latest(stable, built frommain) ·:dev(latestdevbuild) ·:<git-sha>(immutable, for pinning / rollback). - Install as an app (PWA): ThoughtSync is installable ("Add to Home Screen" / the
browser's install button) for an app-like window. Browsers only offer install over a
secure context, so put the app behind a reverse proxy terminating HTTPS (or reach
it via
localhost) — plainhttp://<host>:5000won't show the install prompt.
Milestones
- M0 — Foundation & Identity ✅: Quart+Vue+Postgres skeleton, native auth, sharing-ACL spine, Fabled-Git CI.
- M1 — Capture Core ✅: note model + masonry board (quick-add, colors, pin, edit-in-place, archive, trash+restore).
- M1.5 — Roles & DB-backed Settings ✅: first user is admin, admin Settings UI,
DATABASE_URLis the only required env. - M2 — Organize: labels/tags, search, checklists, attachments.
- M3 — Second-brain seeds:
[[wiki-links]], backlinks, graph view, reminders. - M4 — Launch hardening: responsive/PWA, settings UI, polish.
Work happens on dev; main is protected (PR-only).