rob thijssen c59ba49e90
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feat(swap): orders as a state machine persisted in SQLite, and the preview screen
wallet_core::orders is the pure part: Quoted → AwaitingDeposit →
Processing → Success | Refunded | Failed, with Expired when a quote's
deadline passes before a deposit is seen; it never moves backwards, a
quote past its deadline expires without a network call, and the poll
delay doubles from ten seconds to five minutes (five seconds while
processing). Orders persist through an OrderStore port on the same
SQLite file; on start the app follows every order still open, and the
follower asks the provider with backoff and jitter, persists each move
and emits orders:updated.

Commands: swap_assets (what 1Click lists and the registry maps),
swap_preview (a dry quote), swap_order_create (a wet quote persisted
with its deposit address and deadline) and orders_list. The swap screen
sits behind a preview setting, says plainly that every pair today is
paid from an external wallet, quotes, shows the deposit address with a
QR, memo and deadline, and lists orders with their states.

Driven live on the dev network: BTC on bitcoin to USDC on near, 0.001
BTC quoted at 75.568313 USDC, at least 74.812629, about 805 s. Reserving
a deposit address failed with 1Click's "Failed to get quote": a wet
quote needs the partner credential the relay will hold (#40), which is
the operator's registration. Until then the screen previews and the
poller has nothing to follow; the state machine and the store are
covered by unit tests, including the mid-order restart the store makes
possible.

Refs #39
Refs #41

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014ftBXYuba8ARhQeF74oUgW
2026-09-16 10:37:36 +03:00

blackbeard wallet

A desktop wallet for post-quantum chains, Quantus first. Linux, Windows and macOS; installable on Fedora with dnf.

Shape

The wallet is a Rust cargo workspace with a Tauri shell and a React webview. That split is the security model, not a convenience: every key, signature, decoded transaction and amount lives on the Rust side, and the webview only renders what a Tauri command hands it. Nothing that could serialise a secret is reachable from JavaScript.

crates/
  wallet-entities/   domain types and the IPC wire protocol; exported to TypeScript
  wallet-core/       wallet logic and the ports it is written against
  wallet-data/       adapters behind those ports: keystore, cache, RPC, provider APIs
  wallet-app/        the Tauri binary; commands are one-line shims into core
ui/                  Vite + React + TypeScript webview

The ports in wallet-core are what make "any post-quantum chain" a profile rather than a rewrite:

  • KeyScheme turns a seed and a path into a signer. ML-DSA-65 and ML-DSA-87 now; whatever the next chain uses later.
  • ChainAdapter knows one chain: balances, building and submitting a transaction, watching it. The Substrate adapter is driven by runtime metadata plus a small per-chain profile (ss58 prefix, decimals, signature enum, transaction extensions, signing-context rule, coin type).
  • SwapProvider is a swap venue. NEAR Intents first.
  • FiatRamp builds a provider session through a relay on our infrastructure, which holds the provider secrets, and opens it in the system browser.

The wallet is post-quantum only. Classical chains appear only as transit legs of a swap or ramp; the wallet never derives a secp256k1 or ed25519 key.

Why these choices

Quantus signs extrinsics with ML-DSA, hashes public keys with Poseidon2 for the account id, and shields mining rewards behind a Plonky2 wormhole whose prover is minutes of native CPU. All of that exists as Rust crates and nothing else, so the core is Rust. Tauri is the house desktop convention (~/git/architecture/generic.md §4) and the only shell that packages rpm, deb, msi and dmg with a Rust-owned IPC boundary out of the box.

NEAR's post-quantum work (their MPC fork with threshold ML-DSA-87) is not yet able to sign a Quantus extrinsic, so the swap module is built and tested against chains NEAR Intents already lists, with Quantus as a registry entry that lights up when the bridge does.

Building

pnpm --dir ui install
cargo tauri dev --config crates/wallet-app/tauri.conf.json   # from crates/wallet-app: cargo tauri dev
cargo test --workspace                                        # also regenerates ui/src/api/generated

The CI gate is cargo fmt --check, cargo clippy -D warnings, cargo test, and the webview's typecheck, lint and build. Run them before claiming done.

Work

Work is filed before it is done. Epics carry the epic label and an external definition of done; their steps carry child, in dependency order, at https://git.lair.cafe/blackbeard/wallet/issues. A commit that finishes a child closes it (Closes #N); when an investigation contradicts an issue, the correction is a comment on the issue, dated, not a surprise in a diff.

Description
Desktop wallet for post-quantum chains, Quantus first: ML-DSA signing in Rust, Tauri shell, NEAR Intents swaps and fiat ramps via transit chains. Linux (rpm/deb), Windows and macOS.
Readme 2.6 MiB
v0.3.0 Latest
2026-09-18 07:02:22 +00:00
Languages
Rust 72.1%
TypeScript 23.7%
CSS 1.8%
Python 1.6%
Shell 0.5%
Other 0.3%