jwinterm
771a69b85e
From a multi-lens adversarial review of the capabilities + prices work: - PRICES_ASSETS="" now means NONE, not all (real bug): from_env used env_opt, which collapses unset and present-but-empty into None, so the documented "empty = none" silently served all five feeds. Read via env::var so unset => all, present (even empty) => the listed subset or none. - PRICES_CURRENCY is now validated against a curated SUPPORTED_PRICE_CURRENCIES allowlist. Previously a typo (e.g. "usdd") booted, advertised prices:true, and served an empty feed forever (the provider returns empty quotes for an unknown currency) — a fail-open path inconsistent with the adjacent provider/asset checks. - PRICES_PROVIDER is lowercased at read, matching the asset/currency normalization (mixed-case no longer trips the allowlist). - validate() now requires an Electrum URL for an enabled BTC/LTC chain (hard error in prod, warn in dev), symmetric with the xmr/wow/grin secret checks. Keeps /capabilities honest: a chain it can't serve won't boot advertising itself as available. Tests: config regressions (currency, utxo-electrum); a PriceClient feed-subset selection unit test; the /prices integration test now populates the snapshot and asserts the served quotes + RFC-3339 timestamp (the prior PRICES_ASSETS env-var was inert under the harness); capabilities asserts network presence/null across all five chains. Dismissed after verification: coingecko json() was already switched to a streaming read_capped; fleet refresh-jitter (no API key, single-node, self-healing on 429); prices capability staying a bare bool (/prices carries the currency + per-asset map).
smirk-backend-core
Open, self-hostable backend for the Smirk non-custodial, multi-chain wallet. It provides the chain-access and identity surface a Smirk wallet needs — authentication, per-chain wallet access (Bitcoin, Litecoin, Monero, Wownero, Grin), the Grin slatepack relay, and Nostr-based identity — so anyone can run their own backend and a Smirk wallet can connect to it.
Status: early, under active development. Interfaces and the database schema may change before the first tagged release. Not yet recommended for production self-hosting.
What it is
- Non-custodial. The server never holds spend keys or seeds. It brokers access to blockchain data and relays wallet-to-wallet messages.
- Open core, feature-flagged. Every feature ships in this codebase and is
toggled per deployment; the wallet reads
GET /api/v1/capabilitiesand adapts to what a given backend offers. - Identity via "Sign in with Smirk". Authentication uses a seed-derived Nostr key (NIP-98); the server stores only public keys.
- Privacy first. No PII is required to use it; operator and user privacy are explicit design goals.
Architecture
Rust + Axum, PostgreSQL via sqlx. The public HTTP contract is generated from the handlers with utoipa (OpenAPI), which in turn drives the wallet's generated TypeScript client — one source of truth, checked for drift in CI.
Quickstart
cp .env.example .env # then fill in DATABASE_URL, JWT_SECRET, node URLs
cargo run # starts the API server
A full self-hosting guide (node requirements, reverse proxy, Tor admin onion,
backups) will live in docs/ as it stabilises.
Security
Please report vulnerabilities privately — see SECURITY.md. Do not open public issues for security reports.
License
To be finalized (MIT vs AGPL-3.0-or-later). Until a LICENSE file is added,
all rights are reserved.