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Header, browser tab title, PWA name, and apple web-app title. Tribute prose
(explaining the name honors Hal Finney) left as-is.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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- Dark mode: theme variables + a footer "Dark mode/Light mode" toggle,
persisted and applied pre-paint via a small head script (defaults to the
OS preference). Hardcoded surfaces moved to CSS variables.
- Gift amount: the unit label is now the clickable sats/BTC toggle, and the
amount is parsed in the selected unit.
- Gifts can now span multiple coins: createGift selects several confirmed
coins (first input SIGHASH_SINGLE to lock the change, the rest
SIGHASH_NONE), so a gift larger than any single coin works. Claim/preview
sum all inputs and size the fee by input count. Verified end-to-end.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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Only English is bundled in index.html now; the other 19 languages are
emitted as dist/locales/<code>.json and fetched on demand when a visitor
actually uses one (via auto-detect, the picker, or ?lang=xx). This drops
index.html from ~511KB to ~318KB; a non-English visitor fetches just
their one ~8-10KB locale, which the service worker then caches for
offline use. t() falls back to English until a locale resolves.
- i18n.js keeps only en + a loadLocale() fetcher; locale data moved to
src/locales/*.json.
- build.js emits dist/locales/; dev.js serves /locales/<code>.json.
- Deploy hook publishes the locales/ subdir.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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- Name the app "Hal Wallet" (header, title, PWA manifest, package.json).
A nod to Hal Finney — just the name, no taglines or tributes.
- appTitle is a brand name now, so it's constant across locales (dropped
the translated overrides; they fall back to "Hal Wallet").
- Replace the native <select> caret with a custom chevron spaced off the
right border (the native one is crammed against the edge in Chrome).
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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Scan a Bitcoin address, a BIP21 URI (fills address + amount), or a
signed-transaction QR (opens a broadcast confirmation, then relays it)
from a viewfinder button on the Send form.
Decoder strategy keeps the main bundle small:
- Prefer the native BarcodeDetector (Chrome desktop/Android) — no lib.
- Otherwise lazy-load jsQR from a separate dist/jsqr.js, only when the
scanner is opened. jsQR stays out of index.html (~424 KB vs ~551 KB)
and off the initial load.
- The service worker precaches jsqr.js so offline scanning works for
installed PWAs on browsers without BarcodeDetector.
The scanner needs a camera + secure context, so it never shows on a
standalone file:// page; offline air-gapped signing is unaffected.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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- Don't celebrate historical payments on import. receiveSeenIndex was
baselined to 0 before the scan ran, so when the scan advanced the
index every past payment looked new and flashed "payment received".
Leave it null until the post-scan ack logic baselines it.
- PWA: add a web manifest, ₿ icons (192/512 + maskable), theme/apple
meta tags, and a service worker that precaches the shell so the
installed app works offline. index.html stays self-contained; the
sidecar files just 404 harmlessly from file://. build.js emits them.
- Send page: drop btn-sm from the amount unit toggle so "sats" matches
the "Max" button size (both 16px).
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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Replace the SvelteKit/daisyUI prototype with a vanilla JS + hand-rolled CSS
app that Bun bundles (code + scure/noble crypto + QR + CSS) into one
self-contained dist/index.html runnable offline from file://.
Wallet core (src/wallet.js):
- BIP84 native-segwit HD wallet from BIP39 seed (+optional passphrase)
- gap-limit scan of receive/change chains, aggregate balance, tx history
- fresh receive/change addresses; signs with witnessUtxo only (enables
offline signing with no prev-tx fetch)
- coin selection + fee estimation via btc-signer selectUTXO; send-max;
manual coin control
- offline JSON snapshot export/import (keyless) + signed-tx hex/QR export
- realtime mempool.space WebSocket: track-addresses -> debounced auto
refresh of balances/history (no polling); live status badge
UI (src/app.js): clean light paper-wallet; create (with optional, skippable
backup verification) / import flow; receive (QR) / send / history / coins /
tools tabs; clickable logo returns home.
API (src/api.js): mempool.space wrapper with retry/backoff for scan-burst
rate limiting; single network choke-point for offline enforcement.
Verified: BIP84 spec vectors, build/sign/parse for auto/max/manual flows,
snapshot roundtrip, live scan + WebSocket, headless-Chrome UI smoke tests.
Co-Authored-By: Claude Opus 4.8 (1M context) <[email protected]>
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