Step 5 of M314, note 3127 §6.3. Everything else in this milestone derives a number and trusts it; this compares the derived value against what the channel is actually serving and fails the lane if it went down. Too-low is the unrecoverable direction: every installed client reports "up to date" forever, and no later build fixes it until one climbs back above the bad number. #2183 and #2993 are both that symptom. ## Two hazards, two mechanisms A shallow clone is now tested DIRECTLY, in `version.sh`, via `--is-shallow-repository`. The empty-result guard only caught the case where nothing matched — and run 4796 showed the worse one, where a partial match returned a real six-days-stale answer. Asking the question outright costs no network and covers artifacts with nothing published to compare against. `guard-forward.sh` handles the rest: a squash or rebase merge rewriting the committer date, a rebuild of an older commit, and clock skew between runners. ## The comparison is per artifact, and the operator differs desktop derived >= published commit time, so equality is the ORDINARY no-change case and `<=` would fail every build that changed nothing android derived > published build time, so equality means two builds in one minute — and Android refuses to install an APK whose versionCode does not RISE The server is deliberately unguarded: nothing compares its version, `:latest` moves regardless, and rule 145 removed the version tags that would be the published list. A too-low value there is a wrong date in a footer, not a stranded client. It still gets the shallow-clone check. ## Proved to fire, not assumed Cloned the repo, checked out a commit eight back, ran the guard against the LIVE dev feed: at the tip derived 1.0.3502151, published 1.0.3502151 -> pass eight back derived 1.0.3501535, published 1.0.3502151 -> FAILS android tip derived 3502171, published 3502152 -> pass stable derived 1.0.3502151, published 0.2.0 -> pass That last row is worth keeping: stable still advertises the bare `0.2.0` from the old Cargo.toml scheme, so the transition orders upward on BOTH channels, not just the one being exercised. A channel with nothing published passes rather than failing — otherwise the first publish to a new channel could never happen. The guard runs BEFORE the build in all three lanes, so a bad derivation costs seconds rather than a five-minute compile and a publish to undo. `compare` is exposed as an explicit mode so the ordering is testable without a network and inspectable without a push — 16 cases including `1.0.9 < 1.0.10`, which a string compare gets exactly backwards. #3145 Co-Authored-By: Claude Opus 5 <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). - Putting it on the public internet: there are four things to do first — close
registration, terminate TLS and forward
X-Forwarded-Proto, stop publishing the app port, and back up the attachment volume as well as the database. See docs/public-hosting.md, which also lists what the app hardens on its own and what it deliberately doesn't. - 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).