Commit graph

225 commits

Author SHA1 Message Date
Patrick Mulligan
5182b3634e fix(machine): enable/disable validator on state transitions (direct HAL)
The IPC path already had a watcher to enable the bill validator when
entering insertingBills and disable it when leaving. The direct HAL
path (initializeWithHal) was missing this, meaning the validator would
accept bills in any state. Matches brain.js pattern (lines 193-196).

Closes #28

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-14 00:14:45 -04:00
Patrick Mulligan
ab2ea0b811 fix(hal): re-initialize dispenser after errors
After a dispense error, the F56/Puloon drivers call close() which sets
initialized=false. The next dispense would fail on a closed serial port.
Now checks dispenser.initialized before each dispense and re-inits if
needed, matching the lazy re-init pattern from brain.js (line 4072).

Closes #29

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-14 00:14:31 -04:00
Patrick Mulligan
310d0edb99 feat(machine): persist exchange rate and currency in transactions
Add exchange_rate (sats per fiat unit) and currency columns to the
transactions table so transaction economics can be audited after the
fact. Includes schema migration v2 (fee columns) and v3 (rate/currency),
updated IPC types, and atm-transactions CLI output.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-10 01:30:18 -04:00
Patrick Mulligan
d64f6cd9ab fix(machine): persist transactions stuck in waitingForCashTaken
The IPC HAL path (production) never set halServices.value, so the
auto-advance from waitingForCashTaken → complete never fired. The
machine hung on "Cash Ready!" indefinitely — no transaction persisted.

Three fixes:
- Auto-advance now checks `isElectron` (covers IPC path)
- waitingForCashTaken has a 30s after-timeout as safety net
- Fix unscoped lightningPub refs in LNURL session helpers

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 21:26:58 -05:00
Patrick Mulligan
473834a363 refactor: rename fiatAmount to fiatCents for clarity
The field was always stored in cents but the name was ambiguous.
Rename to fiatCents across state machine, store, and views.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 13:02:12 -05:00
Patrick Mulligan
99ae5ab3de feat(lightning): add withdraw link lifecycle management (delete/update/invalidate)
- Add deleteWithdrawLink and updateWithdrawLink RPC methods to LightningPubClient
- Extract shared WithdrawLink type, add Delete/Update request/response types
- Track linkId in LNURL sessions for server-side cleanup
- Invalidate previous LNURL session on new link creation
- Auto-delete expired links on the server

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 13:01:40 -05:00
Patrick Mulligan
adbfffa0c3 security(M1): verify Nostr event signatures on kind 21000
Add verifyEvent() check before processing kind 21000 events from
Lightning.Pub. While NIP-44v1 encryption provides implicit
authentication (relay can't forge encrypted content without the
shared secret), verifying signatures adds defense-in-depth against
any future changes that might weaken the encryption assumption.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 09:56:25 -05:00
Patrick Mulligan
f1011e7cee security(H5): hardcode allowMockFallback=false in production
Only allow mock fallback when running in development mode (isDev).
In production (packaged Electron app), the VITE_ALLOW_MOCK_FALLBACK
env var is ignored entirely. This prevents an attacker with file
access from enabling mock services (fake payments, fake hardware)
by editing .env on the ATM.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 09:44:13 -05:00
Patrick Mulligan
46f12e5629 security(H4): fix bill escrow race condition
Guard hal:stack-bill and hal:reject-bill IPC handlers against being
called when no bill is in escrow (pendingBillDenomination === null).
Previously, rapid-fire calls could double-accept or misattribute
bill denominations. Now the handlers silently ignore calls when
no bill is pending, preventing the race.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 09:41:09 -05:00
Patrick Mulligan
1ac50b6add security(H1): add Content Security Policy
Add CSP in two layers:
1. Meta tag in index.html (works for all builds)
2. HTTP header via Electron session API (defense-in-depth)

Policy: script-src 'self' blocks XSS from loading external scripts
or executing inline scripts. style-src allows 'unsafe-inline' for
Vue's style injection. connect-src allows ws/wss/http/https for
configurable relay and API endpoints.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 09:36:59 -05:00
Patrick Mulligan
1e3de32c51 security(H2): validate IPC dispense input from renderer
Add input validation to hal:dispense IPC handler:
- Reject non-array or empty amounts
- Validate denomination and count are numbers
- Reject non-positive or non-integer counts
- Verify denomination exists in loaded cassettes
- Verify requested count does not exceed available inventory

Prevents a compromised renderer from sending crafted dispense
requests (negative counts, unknown denominations, over-capacity).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 09:34:20 -05:00
Patrick Mulligan
2273303b13 security(C1): remove private key from get-config IPC response
Move atmPrivateKey and adminToken out of the general get-config IPC
handler into a dedicated one-shot get-atm-secrets handler that returns
secrets only once per app lifecycle. Subsequent calls return empty
strings. This prevents XSS or DevTools from repeatedly querying
getConfig() to steal the ATM's Nostr private key.

TODO: Move signing/encryption to main process entirely (Phase 2)
so the private key never crosses the IPC boundary.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-07 09:32:50 -05:00
Patrick Mulligan
d8841f7fe9 fix(hal): return DispenseResult from IPC dispense handler
The hal:dispense IPC handler in main.ts did not return the result of
dispenseCash(), causing the state machine guard to crash on undefined
output. This left the UI stuck on "Dispensing cash..." after successful
dispense.

- hal-service.ts: return DispenseResult instead of void/throwing
- main.ts: add missing return in IPC handler
- machine.ts: defensive guard (?. instead of .) as safety net

Bug found with the aid of Seoyoung at Trece Cielos.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-06 15:50:12 -05:00
Patrick Mulligan
e51f462876 fix(machine): align dispense error handling with legacy brain.js
dispenseCash now always resolves with a DispenseCashResult (per-bill
dispensed/rejected counts, overall success flag, optional error) instead
of throwing. dispenseError is a 30s timed state that auto-returns to
idle, matching brain.js _timedState('outOfCash'). The dead-end retry
loop (which the UI never exposed) is removed.

The Vue dispenseError screen now shows partial dispense info, the
transaction ID as a QR code, and a 30s countdown.

Closes #30

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-06 10:01:07 -05:00
Patrick Mulligan
45224d2aaf fix(machine): show price and balance badges on mobile
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-03 09:17:32 -05:00
Patrick Mulligan
b7858a08c7 perf: reduce CPU usage on Bay Trail ATM hardware
- Remove infinite box-shadow glow animations from Buy/Sell buttons
  on idle screen (expensive on CPU without GPU)
- Reduce BTC price polling from 10s to 30s
- Reduce LNURL-withdraw polling from 2s to 5s

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 14:26:42 -05:00
Patrick Mulligan
e3f376b462 feat: support VITE_FORCE_MOCK for demo/dev environments
When VITE_FORCE_MOCK=true, initialize with mock services directly
instead of requiring Electron or a live Lightning.Pub connection.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 13:35:25 -05:00
Patrick Mulligan
c2880b187b fix(machine): fix TDZ error accessing isElectron before initialization
loadTheme() and loadColorMode() were called during module evaluation
before the isElectron const was declared, causing a ReferenceError in
Firefox's strict TDZ enforcement. Move isElectron above the ref() calls.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-02 11:31:32 -05:00
Patrick Mulligan
7a42380f0e fix(machine): add mobile responsive layout for atm.aiolabs.dev
The kiosk UI was optimized for 1920px touchscreens, breaking mobile web.
Uses Tailwind lg: breakpoints (mobile-first) so mobile works naturally
while kiosk sizing applies at 1024px+. No JS branching — pure CSS.

- Viewport: width=1920 → width=device-width
- Kiosk-only: overflow:hidden and cursor:none behind @media (min-width: 1024px)
- IdleView: stack buttons vertically on mobile, justify-around for even spacing
- CashInView/CashOutView: stack split panels on mobile (flex-col-reverse lg:flex-row)
- QRCode: SVG scales down on small screens via max-w-full
- App.vue: hide verbose badges on mobile, debug bar collapses theme/color selectors
- Connection/network badges always visible (not gated by isIdle)
- Reduce zone-glow animation intensity by half (20px/4px vs 40px/8px)
- All lg: values verified to match original kiosk rendering

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 23:41:18 -05:00
Patrick Mulligan
624650d3be fix(machine): hide theme toggle in dev mode when debug panel available
The debug panel already has full theme/color mode controls, so the
floating light/dark toggle is redundant in dev. Keep it for production.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 22:50:45 -05:00
Patrick Mulligan
254fbd26f2 fix(machine): UI polish — fiat rate display, 15s receipt with QR, remove CLINK
- Show exchange rate as fiat/BTC (e.g. Q615,000/BTC) instead of sats/fiat
- Show USD/BTC rate when currency != USD
- Complete screen stays 15s (was 3s) with txid QR code for receipt photo
- Add "Done" button for manual dismiss on complete screen
- Remove CLINK ndebit UI (mode selector, pubkey entry) pending k1 fix (#23)
- Remove askForReceipt/sendingReceipt screens (npub scan not active, #36)
- Remove negative sign on commission display
- Set timezone to America/Guatemala

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 15:36:18 -05:00
Patrick Mulligan
88689a7fd3 fix(machine): hide status badges during active transactions
The fixed-position BTC price, balance, and connection badges
overlapped with the CashIn/CashOut headers. Now only visible on idle.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 14:09:48 -05:00
Patrick Mulligan
398c1d76c6 feat(machine): show tx details on completion screen (principal, commission, total)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 13:58:39 -05:00
Patrick Mulligan
73feb2b0d2 feat(machine): omnipresent light/dark toggle and dynamic network badge
Move light/dark toggle with Lucide Sun/Moon icons from IdleView to
App.vue so it's visible on all screens. Detect Bitcoin network
(mainnet/testnet/regtest) from BOLT-11 invoice prefix and persist
in localStorage. Hide network badge on mainnet (implied).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:22:42 -05:00
Patrick Mulligan
3d9d85ba7f feat(machine): redesign cash-out with split-screen layout
Split-screen for displayingInvoice (info left, QR right), full-width
for selectingAmount. Add StepIndicator with warning flow accent header.
Replace Skeleton with BounceDots, remove ScrollArea and Card wrappers,
wrap states in Transition for fade animations.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:18:46 -05:00
Patrick Mulligan
d3e652bce3 feat(machine): redesign cash-in with split-screen layout
Split-screen for insertingBills (amounts left, bill visual right) and
displayingQR (info left, QR right). Add StepIndicator with success
flow accent header. Replace Skeleton with BounceDots, remove ScrollArea
and Card wrappers, wrap states in Transition for fade animations.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:17:28 -05:00
Patrick Mulligan
263165b495 feat(machine): redesign idle screen with circular touch zones
Full-canvas layout: brand zone with logo/badges/balance at top,
two circular touch zones (Buy=bitcoin orange, Sell=green) with
zone-glow animation. Show per-flow commission rates (Buy/Sell).
Move light/dark toggle to App.vue for omnipresence.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:12:09 -05:00
Patrick Mulligan
9cfd2f2907 feat(machine): add scanning frame to QR code component
Wrap QrcodeVue in animated scanning frame with 4 pulsing corner
brackets and a sweep line. Increase default size from 300 to 380
for split-screen contexts. Use font-mono-code for URI preview.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:11:28 -05:00
Patrick Mulligan
acb4a8ccaf feat(machine): add BounceDots and StepIndicator components
BounceDots: three animated dots replacing Skeleton shimmer loaders.
StepIndicator: dot-line-dot progress with active/complete states,
split into separate dots and labels rows for proper alignment.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:10:14 -05:00
Patrick Mulligan
80bc2bfd8a feat(machine): add Ubuntu font and kiosk animations
Self-host Ubuntu Regular/Bold and Ubuntu Mono woff2 for offline kiosk.
Add @font-face declarations, font-mono-code utility, dot-bounce loader,
QR scan line, corner pulse, zone glow, state-fade transition, and step
indicator CSS styles.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:09:42 -05:00
Patrick Mulligan
cea774c3ad feat(machine): add kiosk touch targets and viewport for 1920px
Scale up button sizes (kiosk, kiosk-lg, kiosk-icon variants), add
active:scale feedback, set viewport to 1920px fixed width, hide cursor,
and bump card title/description sizes for touch-screen readability.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-03-01 12:08:06 -05:00
Patrick Mulligan
e63f8ab9f6 fix(machine): seed cassettes on first boot + add atm-transactions script
Cassette inventory was never initialized in SQLite, so
recordTransaction's UPDATE decrements were no-ops against an empty
table. Now the Electron main process seeds cassettes from
VITE_LAMASSU_CASSETTES or the model preset on first boot.

Also adds an atm-transactions CLI script (with --summary, --inventory,
--type, --today, --last, --since filters) and sqlite to the NixOS
system packages.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-28 11:55:00 -05:00
Patrick Mulligan
f6a1c2f9f6 fix(machine): fix TypeScript cast in useTheme isElectron check
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 20:22:58 -05:00
Patrick Mulligan
09611c0958 feat(machine): add light/dark toggle on idle screen
Subtle sun/moon button in bottom-left corner lets users switch
between light and dark mode. Persists via localStorage.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 20:02:10 -05:00
Patrick Mulligan
a6d69a385c feat(machine): hide debug toggle in production, default to Catppuccin light
- Debug toggle button only shown when allowMockFallback is true
- Electron defaults to Catppuccin Latte (light) instead of Gruvbox dark
- Browser dev mode keeps Gruvbox dark as default

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 20:00:24 -05:00
Patrick Mulligan
e460765355 feat(machine): production safety — disable mock fallback and ndebit
When VITE_ALLOW_MOCK_FALLBACK is unset (production default), the ATM
now shows a maintenance screen instead of silently falling back to mock
services when hardware or Lightning initialization fails. Also disables
ndebit/CLINK in production since the static ndebit pointer is replayable
— cash-in uses LNURL-withdraw only (single-use by design).

- Add allowMockFallback config field (Electron IPC + types)
- Add strict config validation (no localhost, require private key)
- Gate all catch-block fallbacks behind allowMockFallback
- Disable debit approval service and ndebit generation in production
- Add maintenance screen in App.vue when initError is set

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 17:39:12 -05:00
Patrick Mulligan
03b5720883 fix(machine): clarify cash-in QR screen is for receiving, not paying
The displayingQR state showed "Waiting for payment..." with an hourglass,
which confused users into thinking they needed to pay. This is an
LNURL-withdraw flow — the user scans to *receive* sats.

- "Preparing payment code" → "Preparing your withdraw code"
- Add prominent "Scan to receive your sats" heading above QR
- "Waiting for payment..." → "Open your wallet and scan to claim"
- "Manual payment options" → "Manual withdraw options"
- "Payment Sent!" → "Sats Sent!"

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 12:40:59 -05:00
Patrick Mulligan
1a452fe7ec fix(machine): replace remaining hardcoded colors with semantic classes
Replace bg-orange-500 lightning bolt overlay with bg-bitcoin, bg-white
receipt placeholders with bg-qr/text-qr-foreground, and remove redundant
bg-white QR wrappers in IdleView overlays (QRCode.vue already has bg-qr).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 11:04:19 -05:00
Patrick Mulligan
f5f00108aa feat(machine): add light/dark mode toggle with semantic color styling
Replace hardcoded Tailwind colors (bg-white/5, text-green-400, bg-black/30,
etc.) with theme-aware semantic classes (bg-card, text-success, text-bitcoin,
bg-destructive/20) across CashInView and CashOutView. Add colorMode support
to useTheme composable with localStorage persistence and system preference
detection. QRCode component now reacts to theme/mode changes via
MutationObserver. Debug panel includes Light/Dark/System toggle.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 10:57:33 -05:00
Patrick Mulligan
0406a21b0e fix(cash-in): restore cancel button and add displayingQR timeout
Cancel button is now always visible during the cash-in flow. The state
machine routes CANCEL to confirmAbandon when bills are present, so the
user always has an exit path with appropriate warnings. Also adds a
5-minute auto-timeout on displayingQR and allows cancel during
generatingNdebit.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 20:19:01 -05:00
Patrick Mulligan
13ac74ab86 fix(cash-in): prevent cancel after bills inserted in insertingBills state
The cancel button was still accessible during insertingBills after a bill
had been stacked (physically irreversible). Now CANCEL in insertingBills
is guarded: no bills → idle, bills present → confirmAbandon warning.
The UI also hides the cancel button once bills are detected.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 19:35:34 -05:00
Patrick Mulligan
642f0c5951 fix(machine): hide cancel after bills inserted, kiosk-only UI cleanup
- Hide header cancel button after bills are in cash box
- Add spinning hourglass to displayingQR waiting indicator
- Hide keyboard-dependent UI in Electron kiosk mode:
  QR mode selector, manual payment options, copy buttons
  These remain available in browser (web-ui) mode.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 19:26:06 -05:00
Patrick Mulligan
165ad59704 feat(machine): confirm-abandon warning, retry on error, hourglass animation
- Add confirmAbandon state UI: warns user cash can't be returned,
  offers "Show QR Code Again" or "Abandon (lose cash)"
- Error state shows "Try Again" button when bills are inserted
- Replace Skeleton loading placeholders with hourglass emoji
- Add animate-hourglass: 45-degree step rotation (Tailwind v4 @utility)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 19:15:51 -05:00
Patrick Mulligan
625af457d1 feat(machine): live BTC price badge with 10s polling from LNbits
- Poll LNbits /api/v1/rate/ every 10s for live price display
- Show local currency rate + USD reference (e.g. GTQ/BTC: Q525,034 ($67,960))
- Reduce rate cache from 5min to 10s for responsive display
- Use simpler /api/v1/rate/ endpoint instead of /conversion POST

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 19:12:52 -05:00
Patrick Mulligan
648f089ac2 feat(machine): real exchange rate with LNbits, ShockWallet, CoinGecko fallback
Replace hardcoded mock rate (1000 sats/USD) with live price feeds:
1. LNbits (lnbits.atitlan.io) — primary, supports GTQ/USD/EUR
2. rates.shockwallet.app — ShockWallet ecosystem fallback
3. CoinGecko — last resort

Includes 5-minute cache and request deduplication.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 18:50:30 -05:00
Patrick Mulligan
0ea9640f49 fix(machine): production hardware fixes for Douro cash-out
- Fix cassette denominations: Douro uses Q100/Q200, not Q20
- Add hal:get-inventory IPC so renderer can read HAL cassette inventory
- Add balance fetch/display to HAL+IPC init path and idle screen
- Enable/disable bill validator via watch on nested state transitions
- Pass fiatCode to state machine context (was hardcoded to USD)
- Preserve currency across state machine resetContext
- Add CANCEL handler to dispenseError state (was stuck)
- Fix remaining hardcoded $ symbols in CashInView

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 18:13:45 -05:00
Patrick Mulligan
2605c44ef8 feat(machine): add HAL IPC bridge for real hardware in Electron
HAL hardware drivers (serialport) run in the main process since they
need Node.js. The renderer communicates via IPC for all hardware ops.

- hal-service.ts: bridge between HAL drivers and Electron IPC
- main.ts: HAL IPC handlers (init, dispense, validator stack/reject)
- preload.ts: expose HAL API to renderer via contextBridge
- atm.ts: IPC-based production init with validator event wiring
- hal.ts: add 'hold' mode for escrow (async stack/reject decision)
- electron.d.ts: HAL type declarations for window.electronAPI

Bills go to escrow first; the renderer checks balance before accepting.
Falls back to Lightning-only mock mode if HAL init fails.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-25 17:02:13 -05:00
Patrick Mulligan
10293d0ab5 fix(machine): auto-init HAL in production, wire dispense completion, add GTQ
- App.vue detects Electron and calls initializeForProduction() to start
  real hardware drivers instead of Lightning-only mode
- Auto-send CASH_DISPENSED when HAL is active since dispenseCash already
  waits for bills to be removed before resolving
- Add GTQ (Guatemalan Quetzal) bill lengths to F56 and Puloon dispensers

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-22 20:20:51 -05:00
Patrick Mulligan
ba42820c71 feat(machine): add Tejo machine preset with 4-cassette F56 dispenser
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-22 20:04:29 -05:00
Patrick Mulligan
350e7a8974 feat(hal): add Puloon bill dispenser driver for Douro ATM
Port the Puloon RS232 dispenser protocol from lamassu-machine to
the lamassu-next HAL package. Adds Douro machine preset with Puloon
dispenser on /dev/ttyS1 and ID003 validator on /dev/ttyS0.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-22 20:01:26 -05:00