davideandClaude Sonnet 5.5
13cb66cc06
An empty ELECTRUM_FALLBACK_SERVERS (the .env.example default) silently made every corroboration pass, and with fallbacks the majority was taken over whoever answered, so one reachable fallback decided alone. TLS certificates were never checked. - _corroborate_majority passes only with at least 2 answers (MIN_QUORUM_RESPONSES) and a strict majority of the answers; no other server configured, or fewer than 2 answering, fails. ALLOW_NO_QUORUM=true keeps the old reduced rule. - config.validate_quorum_servers, called from the lifespan after parse_endpoints, refuses to start with fewer than 2 fallback servers unless ALLOW_NO_QUORUM=true (which logs a warning at every start). - Optional pinning: `host:port[:mode]:pin=<sha256>` per fallback and ELECTRUM_CERT_PIN for the primary; ElectrumClient compares the SHA-256 of the DER certificate after the TLS handshake and a mismatch fails like an unreachable server. A pin on a plaintext entry is a startup error. - .env.example now ships the four bootstrap servers and documents both new variables; docs/setup.md, spec, storico and BUGS.md updated. - Tests changed because the spec changed: the two "no other servers configured -> True" corroboration tests now assert that outcome only under allow_no_quorum. Note: a dev .env with fewer than 2 fallback servers will now refuse to start. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
PLM Lottery
A periodic-round lottery system built on PLM, a Bitcoin-like coin (mainnet). Each user gets a dedicated server-derived P2WPKH address; they deposit PLM to that address, place a fixed-cost bet to enter the current round, and when the round closes a winner is drawn who receives 70% of the prize pool (the remaining 30% goes to fees).
This is a custodial system: private keys are generated and held server-side, encrypted at rest. See CLAUDE.md for the full architecture, domain decisions, and known gaps before treating this as production-ready.
Quick start
The server always runs via Docker (app + Caddy reverse proxy with automatic
TLS) — in dev and production alike, with only SITE_ADDRESS differing
between the two. There's no supported way to run uvicorn directly; the
venv is only for local tooling (tests, Alembic migrations, the one-time key
scripts) — see CLAUDE.md.
cp .env.example .env # then fill in the generated secrets, see docs/setup.md
mkdir -p data/db data/keys data/logs
docker compose run --rm app python scripts/generate_master_key.py
docker compose up -d --build
Open https://localhost/ for the test UI, https://localhost/admin for the
admin dashboard (a self-signed-certificate warning on first visit is
expected in dev — accept it, or use curl -k). The interactive API docs at
/docs are disabled by default (they'd otherwise expose the whole API
surface, admin endpoints included) — set ENABLE_API_DOCS=true in .env to
enable them.
See docs/setup.md and docs/running-the-server.md for the full walkthrough (secrets, master key generation, production TLS with a real domain).
Documentation
- CLAUDE.md — architecture, commands, domain decisions, known gaps (for anyone/anything working on the code)
- docs/README.md — index of all documentation (docs-first, single source of truth, one ADR per decision: docs/adr/)
- docs/come-funziona.md — the specification (Italian): how the platform works, with diagrams and traceable requirement IDs; it indexes every per-topic document (flows, architecture, data model, API, security, audit log, operations, decisions and limits, bug history). docs/processo-di-modifica.md describes how a change goes from the spec to the code
- docs/setup.md — one-time setup (secrets, master key, migrations)
- docs/running-the-server.md — how to launch it with Docker+Caddy (dev vs. production TLS)
- docs/guida-utente.md — end-user guide to the test UI (Italian)
- docs/guida-admin.md — admin dashboard guide (Italian)
Tech stack
Python (FastAPI, SQLAlchemy async + Alembic, Argon2 + JWT auth), Electrum protocol for PLM network access (no full node), Docker + Caddy for deployment. See CLAUDE.md for the complete list and the reasoning behind each choice.
Testing
python -m pytest # all tests
python -m pytest tests/unit/test_hd.py # one file
425 unit tests cover HD derivation, PSBT building, the Electrum client, bets, deposits, withdrawals, the round/draw engine, RBF fee-bumping, admin config, the pending-inclusive balance calculation, and the SSE push channel. No automated integration tests against a live Electrum connection — mainnet verification so far has been manual (see CLAUDE.md's "Project status").