README.md

@@ -1,6 +1,6 @@
 # Deployment Script
 
-This directory contains a deployment script for the Phone project to a Raspberry Pi.
+This directory contains a deployment script for the Yellow Phone project to a Raspberry Pi.
 
 ## File: deploy.ts
 
@@ -8,48 +8,46 @@ A Bun-based deployment script that automates copying files to a Raspberry Pi and
 
 ### Configuration
 
-- **Target Host**: `phone.local`
+- **Target Host**: `yellow-phone.local`
-- **Target Directory**: `/home/corey/phone`
+- **Target Directory**: `/home/corey/yellow-phone`
 
 ### What It Does
 
-1. **Copies files** from here to the pi (in ~/phone by default)
+1. **Creates directory** on the Pi at the configured path
-2. **Bootstrap (optional)**: If `--bootstrap` flag is passed it will bootstrap the pi with everything it needs
+2. **Copies files** from local `pi/` directory to the Pi
-3. **Service management**:
+3. **Sets permissions** to make all TypeScript files executable
+4. **Bootstrap (optional)**: If `--bootstrap` flag is passed, runs `bootstrap.ts` on the Pi with sudo
+5. **Service management**:
    - Checks if `phone-ap.service` and `phone-web.service` exist
    - If they exist, restarts both services
    - If they don't exist and bootstrap wasn't run, warns the user
 
 ### Usage
 
+**Standard deployment** (just copy files and restart services):
 ```bash
-bun scripts/deploy.ts
+bun deploy.ts
-# or bun deploy.ts --bootstrap
+```
->>>>>>> Stashed changes
+
+**First-time deployment** (copy files + run bootstrap):
+```bash
+bun deploy.ts --bootstrap
 ```
 
 ### Services
 
 The script manages two systemd services:
-
 - `phone-ap.service` - Access point service
 - `phone-web.service` - Web interface service
 
 ### Access
 
 After deployment, the Pi is accessible at:
+- **Web URL**: http://yellow-phone.local
+- **WiFi Network**: yellow-phone-setup
 
-- **Web URL**: http://phone.local
+### Requirements
-- **WiFi Network**: phone-setup
-
-### Local Requirements
 
 - Bun runtime
-  <<<<<<< HEAD
+- SSH access to `yellow-phone.local`
-  <<<<<<< Updated upstream
+- Local `pi/` directory with files to deploy
-- # SSH access to `yellow-phone.local`
-- SSH access to `phone.local`
-  > > > > > > > 1c717a5b4772147c3b7ce20f512452f13c8cc510
-- # Local `pi/` directory with files to deploy
-- SSH access to `phone.local`
-  > > > > > > > Stashed changes

baresip/accounts

@@ -1 +0,0 @@
-<sip:yellow@probablycorey.sip.twilio.com;transport=tls>;auth_pass=zgm-kwx2bug5hwf3YGF;unregister_on_exit=yes;regint=300

baresip/config

@@ -1,71 +0,0 @@
-#
-# baresip configuration
-#
-
-#------------------------------------------------------------------------------
-
-# Core
-poll_method		epoll		# poll, select, epoll ..
-ring_aufile		none
-
-# Call
-call_local_timeout	120
-call_max_calls		4
-
-# Audio
-audio_player		alsa,default
-audio_source		alsa,default
-audio_alert		none
-audio_alert_enable	no
-audio_level		no
-ausrc_format		s16		# s16, float, ..
-auplay_format		s16		# s16, float, ..
-auenc_format		s16		# s16, float, ..
-audec_format		s16		# s16, float, ..
-audio_buffer		20-160		# ms
-
-# AVT - Audio/Video Transport
-rtp_tos			184
-rtcp_mux		no
-jitter_buffer_delay	5-10		# frames
-rtp_stats		no
-
-
-#------------------------------------------------------------------------------
-# Modules
-
-module_path		/usr/lib/baresip/modules
-
-# UI Modules
-#module			stdio.so
-
-# Audio codec Modules (in order)
-module			g711.so
-
-
-# Audio driver Modules
-module			alsa.so
-
-# Media NAT modules
-module			stun.so
-module			turn.so
-module			ice.so
-
-module			httpd.so
-
-#------------------------------------------------------------------------------
-# Temporary Modules (loaded then unloaded)
-
-module_tmp		uuid.so
-module_tmp		account.so
-
-
-#------------------------------------------------------------------------------
-# Application Modules
-
-module_app		contact.so
-module_app		debug_cmd.so
-module_app		menu.so
-
-
-http_listen		0.0.0.0:8000 # httpd - HTTP Serve

basic-test.ts

@@ -5,7 +5,7 @@
  * Tests device listing, player, recorder, and tone generation
  */
 
-import Buzz from "./buzz"
+import Buzz from "./src/buzz"
 
 console.log("🎵 Buzz Audio Library - Basic Test\n")
 

bun.lock

@@ -6,7 +6,6 @@
       "dependencies": {
         "hono": "^4.10.4",
         "openai": "^6.9.0",
-        "robot3": "^1.2.0",
       },
       "devDependencies": {
         "@types/bun": "latest",
@@ -31,8 +30,6 @@
 
     "openai": ["openai@6.9.0", "", { "peerDependencies": { "ws": "^8.18.0", "zod": "^3.25 || ^4.0" }, "optionalPeers": ["ws", "zod"], "bin": { "openai": "bin/cli" } }, "sha512-n2sJRYmM+xfJ0l3OfH8eNnIyv3nQY7L08gZQu3dw6wSdfPtKAk92L83M2NIP5SS8Cl/bsBBG3yKzEOjkx0O+7A=="],
 
-    "robot3": ["robot3@1.2.0", "", {}, "sha512-Xin8KHqCKrD9Rqk1ZzZQYjsb6S9DRggcfwBqnVPeM3DLtNCJLxWWTrPJDYm3E+ZiTO7H3VMdgyPSkIbuYnYP2Q=="],
-
     "typescript": ["typescript@5.9.3", "", { "bin": { "tsc": "bin/tsc", "tsserver": "bin/tsserver" } }, "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw=="],
 
     "undici-types": ["undici-types@7.16.0", "", {}, "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw=="],

package.json

@@ -14,8 +14,7 @@
   },
   "dependencies": {
     "hono": "^4.10.4",
-    "openai": "^6.9.0",
+    "openai": "^6.9.0"
-    "robot3": "^1.2.0"
   },
   "prettier": {
     "semi": false,

scripts/bootstrap-bun.sh

@@ -3,15 +3,22 @@
 set -e
 
 echo "==========================================
-  Bun Installation for Raspberry Pi
+  Bun Installation for Yellow Phone
 ==========================================
 "
 
 # Check if already installed
 if command -v bun >/dev/null 2>&1; then
-    echo "✓ Bun is already installed at: $(which bun) $(bun --version)"
+    echo "✓ Bun is already installed at: $(which bun)"
+    bun --version
+    echo ""
+    read -p "Reinstall anyway? (y/N): " -n 1 -r
+    echo
+    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+        echo "Skipping installation."
         exit 0
     fi
+fi
 
 echo "Step 1: Installing Bun..."
 echo "Running official Bun installer..."

scripts/bootstrap.ts

@@ -3,7 +3,7 @@ import { writeFileSync } from "fs"
 
 console.log(`
 ==========================================
-  Phone Setup Bootstrap
+  Yellow Phone Setup Bootstrap
 ==========================================
 `)
 
@@ -15,7 +15,7 @@ if (process.getuid && process.getuid() !== 0) {
 }
 
 // Get install directory from argument or use default
-const INSTALL_DIR = process.argv[2] || "/home/corey/phone"
+const INSTALL_DIR = process.argv[2] || "/home/corey/yellow-phone"
 const AP_SERVICE_FILE = "/etc/systemd/system/phone-ap.service"
 const WEB_SERVICE_FILE = "/etc/systemd/system/phone-web.service"
 
@@ -44,7 +44,7 @@ console.log(`Using bun at: ${bunPath}`)
 
 // Create AP monitor service
 const apServiceContent = `[Unit]
-Description=Phone WiFi AP Monitor
+Description=Yellow Phone WiFi AP Monitor
 After=network.target
 Before=phone-web.service
 
@@ -64,7 +64,7 @@ console.log("✓ Created phone-ap.service")
 
 // Create web server service
 const webServiceContent = `[Unit]
-Description=Phone Web Server
+Description=Yellow Phone Web Server
 After=network.target phone-ap.service
 
 [Service]
@@ -102,9 +102,9 @@ Both services are now running and will start automatically on boot:
 - phone-web.service: Web server for configuration
 
 How it works:
-- If connected to WiFi: Access at http://phone.local
+- If connected to WiFi: Access at http://yellow-phone.local
-- If NOT connected: WiFi AP "phone-setup" will start automatically
+- If NOT connected: WiFi AP "yellow-phone-setup" will start automatically
-  Connect to the AP at the same address http://phone.local
+  Connect to the AP at the same address http://yellow-phone.local
 
 To check status use ./cli
 `)

scripts/cli.sh

@@ -33,7 +33,7 @@ const command = process.argv[2];
 
 if (!command || command === "help") {
   console.log(`
-Phone CLI - Service Management Tool
+Yellow Phone CLI - Service Management Tool
 
 Usage: bun cli <command>
 
@@ -76,7 +76,7 @@ if (!Object.keys(commands).includes(command)) {
   process.exit(1);
 }
 
-console.log(`\n🔧 Phone CLI - ${command}\n`);
+console.log(`\n🔧 Yellow Phone CLI - ${command}\n`);
 
 // Parse service-specific commands
 const match = command.match(/^(ap|web)-(.+)$/);

scripts/deploy.ts

@@ -2,8 +2,8 @@
 
 import { $ } from "bun"
 
-const PI_HOST = process.env.PI_HOST ?? "phone.local"
+const PI_HOST = "yellow-phone.local"
-const PI_DIR = process.env.PI_DIR ?? "/home/corey/phone"
+const PI_DIR = "/home/corey/yellow-phone"
 
 // Parse command line arguments
 const shouldBootstrap = process.argv.includes("--bootstrap")
@@ -30,16 +30,10 @@ console.log("\n✓ Files deployed!\n")
 
 // Run bootstrap if requested
 if (shouldBootstrap) {
-  console.log("🍞 Running bootstrap-bun on Pi...\n")
-  await $`ssh ${PI_HOST} "bash ${PI_DIR}/scripts/bootstrap-bun.sh"`
-
   console.log("Running bootstrap on Pi...\n")
-  await $`ssh ${PI_HOST} "cd ${PI_DIR} && sudo bun ${PI_DIR}/scripts/bootstrap.ts ${PI_DIR}"`
+  await $`ssh ${PI_HOST} "cd ${PI_DIR} && sudo bun bootstrap.ts ${PI_DIR}"`
 }
 
-// make console beep
-await $`afplay /System/Library/Sounds/Blow.aiff`
-
 // Always check if services exist and restart them (whether we bootstrapped or not)
 console.log("Checking for existing services...")
 const apServiceExists = await $`ssh ${PI_HOST} "systemctl is-enabled phone-ap.service"`
@@ -60,6 +54,6 @@ if (apServiceExists.exitCode === 0 && webServiceExists.exitCode === 0) {
 console.log(`
 ✓ Deploy complete!
 
-Access via WiFi at http://phone.local
+Access via WiFi at http://yellow-phone.local
-The Pi is discoverable as "phone-setup"
+The Pi is discoverable as "yellow-phone-setup"
 `)

src/buzz/player.ts

@@ -145,7 +145,11 @@ export class Player {
       "-",
     ]
 
-    const proc = Bun.spawn(["aplay", ...args], { stdin: "pipe", stdout: "pipe", stderr: "pipe" })
+    const proc = Bun.spawn(["aplay", ...args], {
+      stdin: "pipe",
+      stdout: "pipe",
+      stderr: "pipe",
+    })
 
     let bufferFinishTime = performance.now()
     const format = this.#format

src/buzz/utils.ts

@@ -1,66 +1,66 @@
 // Audio format configuration
 export type AudioFormat = {
-  format?: string
+  format?: string;
-  sampleRate?: number
+  sampleRate?: number;
-  channels?: number
+  channels?: number;
-}
+};
 
 // Default audio format for recordings and tone generation
 export const DEFAULT_AUDIO_FORMAT = {
-  format: "S16_LE",
+  format: 'S16_LE',
   sampleRate: 16000,
   channels: 1,
-} as const
+} as const;
 
 // Device from ALSA listing
 export type Device = {
-  id: string // "default" or "plughw:1,0"
+  id: string;        // "default" or "plughw:1,0"
-  card: number // ALSA card number
+  card: number;      // ALSA card number
-  device: number // ALSA device number
+  device: number;    // ALSA device number
-  label: string // Human-readable name
+  label: string;     // Human-readable name
-  type: "playback" | "capture"
+  type: 'playback' | 'capture';
-}
+};
 
 // Playback control handle
 export type Playback = {
-  isPlaying: boolean
+  isPlaying: boolean;
-  stop: () => Promise<void>
+  stop: () => Promise<void>;
-  finished: () => Promise<void>
+  finished: () => Promise<void>;
-}
+};
 
 // Streaming playback handle
 export type StreamingPlayback = {
-  isPlaying: boolean
+  isPlaying: boolean;
-  write: (chunk: Uint8Array) => void
+  write: (chunk: Uint8Array) => void;
-  stop: () => Promise<void>
+  stop: () => Promise<void>;
-  bufferEmptyFor: number // milliseconds since buffer became empty, 0 if not empty
+  bufferEmptyFor: number; // milliseconds since buffer became empty, 0 if not empty
-}
+};
 
 // Streaming recording control handle
 export type StreamingRecording = {
-  isRecording: boolean
+  isRecording: boolean;
-  stream: () => ReadableStream<Uint8Array>
+  stream: () => ReadableStream<Uint8Array>;
-  stop: () => Promise<void>
+  stop: () => Promise<void>;
-}
+};
 
 // File recording control handle
 export type FileRecording = {
-  isRecording: boolean
+  isRecording: boolean;
-  stop: () => Promise<void>
+  stop: () => Promise<void>;
-}
+};
 
-const parseDeviceLine = (line: string, type: "playback" | "capture"): Device | undefined => {
+const parseDeviceLine = (line: string, type: 'playback' | 'capture'): Device | undefined => {
-  if (!line.startsWith("card ")) return undefined
+  if (!line.startsWith('card ')) return undefined;
 
-  const match = line.match(/^card (\d+):\s+\w+\s+\[(.+?)\],\s+device (\d+):/)
+  const match = line.match(/^card (\d+):\s+\w+\s+\[(.+?)\],\s+device (\d+):/);
-  if (!match) return undefined
+  if (!match) return undefined;
 
-  const [, cardStr, label, deviceStr] = match
+  const [, cardStr, label, deviceStr] = match;
 
-  if (!cardStr || !label || !deviceStr) return undefined
+  if (!cardStr || !label || !deviceStr) return undefined;
 
-  const card = parseInt(cardStr)
+  const card = parseInt(cardStr);
-  const device = parseInt(deviceStr)
+  const device = parseInt(deviceStr);
 
   return {
     id: `plughw:${card},${device}`,
@@ -68,77 +68,79 @@ const parseDeviceLine = (line: string, type: "playback" | "capture"): Device | u
     device,
     label,
     type,
-  }
+  };
-}
+};
 
-const parseAlsaDevices = (output: string, type: "playback" | "capture"): Device[] => {
+const parseAlsaDevices = (output: string, type: 'playback' | 'capture'): Device[] => {
   return output
-    .split("\n")
+    .split('\n')
-    .map((line) => parseDeviceLine(line, type))
+    .map(line => parseDeviceLine(line, type))
-    .filter((device) => device !== undefined)
+    .filter(device => device !== undefined);
-}
+};
 
 export const listDevices = async (): Promise<Device[]> => {
-  const playbackOutput = await Bun.$`aplay -l`.text()
+  const playbackOutput = await Bun.$`aplay -l`.text();
-  const captureOutput = await Bun.$`arecord -l`.text()
+  const captureOutput = await Bun.$`arecord -l`.text();
 
-  const playback = parseAlsaDevices(playbackOutput, "playback")
+  const playback = parseAlsaDevices(playbackOutput, 'playback');
-  const capture = parseAlsaDevices(captureOutput, "capture")
+  const capture = parseAlsaDevices(captureOutput, 'capture');
 
-  return [...playback, ...capture]
+  return [...playback, ...capture];
-}
+};
 
 export const findDeviceByLabel = async (
   label: string,
-  type?: "playback" | "capture"
+  type?: 'playback' | 'capture'
 ): Promise<Device> => {
-  const devices = await listDevices()
+  const devices = await listDevices();
-  const device = devices.find((d) => d.label === label && (!type || d.type === type))
+  const device = devices.find(d =>
+    d.label === label && (!type || d.type === type)
+  );
 
   if (!device) {
-    const typeStr = type ? ` (type: ${type})` : ""
+    const typeStr = type ? ` (type: ${type})` : '';
-    throw new Error(`Device not found: ${label}${typeStr}`)
+    throw new Error(`Device not found: ${label}${typeStr}`);
   }
 
-  return device
+  return device;
-}
+};
 
 export const calculateRMS = (chunk: Uint8Array): number => {
-  const samples = new Int16Array(chunk.buffer, chunk.byteOffset, chunk.byteLength / 2)
+  const samples = new Int16Array(chunk.buffer, chunk.byteOffset, chunk.byteLength / 2);
-  let sum = 0
+  let sum = 0;
 
   for (const sample of samples) {
-    sum += sample * sample
+    sum += sample * sample;
   }
 
-  return Math.sqrt(sum / samples.length)
+  return Math.sqrt(sum / samples.length);
-}
+};
 
 export const generateToneSamples = (
   frequencies: number[],
   sampleRate: number,
   durationSeconds: number
 ): Uint8Array => {
-  const numSamples = Math.floor(sampleRate * durationSeconds)
+  const numSamples = Math.floor(sampleRate * durationSeconds);
-  const buffer = new ArrayBuffer(numSamples * 2) // 2 bytes per S16_LE sample
+  const buffer = new ArrayBuffer(numSamples * 2); // 2 bytes per S16_LE sample
-  const samples = new Int16Array(buffer)
+  const samples = new Int16Array(buffer);
 
   for (let i = 0; i < numSamples; i++) {
-    const t = i / sampleRate
+    const t = i / sampleRate;
-    let value = 0
+    let value = 0;
 
     // Mix all frequencies together
     for (const freq of frequencies) {
-      value += Math.sin(2 * Math.PI * freq * t)
+      value += Math.sin(2 * Math.PI * freq * t);
     }
 
     // Average and scale to Int16 range
-    value = (value / frequencies.length) * 32767
+    value = (value / frequencies.length) * 32767;
-    samples[i] = Math.round(value)
+    samples[i] = Math.round(value);
   }
 
-  return new Uint8Array(buffer)
+  return new Uint8Array(buffer);
-}
+};
 
 export const streamTone = async (
   stream: { write: (chunk: Uint8Array) => void; end: () => void },
@@ -146,24 +148,20 @@ export const streamTone = async (
   durationMs: number,
   format: Required<AudioFormat>
 ): Promise<void> => {
-  const infinite = durationMs === Infinity
+  const infinite = durationMs === Infinity;
-  const durationSeconds = durationMs / 1000
+  const durationSeconds = durationMs / 1000;
 
   // Continuous tone
-  const samples = generateToneSamples(
+  const samples = generateToneSamples(frequencies, format.sampleRate, infinite ? 1 : durationSeconds);
-    frequencies,
-    format.sampleRate,
-    infinite ? 1 : durationSeconds
-  )
 
   if (infinite) {
     // Loop 1-second chunks forever
     while (true) {
-      stream.write(samples)
+      stream.write(samples);
-      await Bun.sleep(1000)
+      await Bun.sleep(1000);
     }
   } else {
-    stream.write(samples)
+    stream.write(samples);
-    stream.end()
+    stream.end();
-  }
   }
+};

src/hq.ts

@@ -1,47 +0,0 @@
-import { GPIO } from "./pins"
-
-console.log(`kill -9 ${process.pid}`)
-
-const gpio = new GPIO({ resetOnClose: true })
-
-// // Blink an LED
-using led = gpio.output(21)
-
-// Read a button
-using inputs = gpio.inputGroup({
-  button: { pin: 20, pull: "up", debounce: 10 },
-  switch: { pin: 16, pull: "up", debounce: 10 }
-})
-
-led.value = inputs.pins.button.value
-
-const iteratorEvents = new Promise(async (resolve) => {
-  for await (const event of inputs.events()) {
-    if (event.pin === "button") {
-      console.log(`🌭`, event.value)
-      led.value = event.value
-    }
-  }
-})
-
-const switchEvent = new Promise<void>(async (resolve) => {
-  await inputs.pins.switch.waitForValue(0)
-  console.log("Switch pressed!")
-  resolve()
-})
-
-process.on("SIGINT", () => {
-  inputs.close()
-  led.close()
-  process.exit(0)
-})
-
-process.on("SIGTERM", () => {
-  inputs.close()
-  
-  process.exit(0)
-})
-
-await Promise.race([iteratorEvents, switchEvent])
-
-console.log(`👋 Goodbye!`)

src/operator.ts

@@ -22,10 +22,10 @@ const runPhoneSystem = async (agentId: string, apiKey: string) => {
   let currentDialtone: Playback | undefined
   let currentBackgroundNoise: Playback | undefined
   let streamPlayback = player.playStream()
-  const waitingIndicator = new WaitingSounds(player)
+  const waitingIndicator = new WaitingSounds(player, streamPlayback)
 
   // Set up agent event listeners
-  agent.events.connect(async (event) => {
+  agent.events.connect((event) => {
     switch (event.type) {
       case "connected":
         console.log("✅ Connected to AI agent\n")
@@ -40,7 +40,7 @@ const runPhoneSystem = async (agentId: string, apiKey: string) => {
         break
 
       case "audio":
-        await waitingIndicator.stop()
+        waitingIndicator.stop()
         const audioBuffer = Buffer.from(event.audioBase64, "base64")
         streamPlayback.write(audioBuffer)
         break
@@ -52,7 +52,7 @@ const runPhoneSystem = async (agentId: string, apiKey: string) => {
         break
 
       case "tool_call":
-        waitingIndicator.start(streamPlayback)
+        waitingIndicator.start()
         console.log(`🔧 Tool call: ${event.name}(${JSON.stringify(event.args)})`)
         break
 
@@ -73,14 +73,6 @@ const runPhoneSystem = async (agentId: string, apiKey: string) => {
 
       case "error":
         console.error("Agent error:", event.error)
-        break
-
-      case "ping":
-        break
-
-      default:
-        console.log(`😵‍💫 ${event.type}`)
-        break
     }
   })
 

src/phone.ts

@@ -1,445 +0,0 @@
-import { d, reduce, createMachine, state, transition, interpret, guard } from "robot3"
-import { Baresip } from "./sip"
-import { log } from "./utils/log"
-import { sleep } from "bun"
-import { processStderr, processStdout } from "./utils/stdio"
-import Buzz from "./buzz"
-import { join } from "path"
-import { GPIO } from "./pins"
-import { Agent } from "./agent"
-import { searchWeb } from "./agent/tools"
-
-type CancelableTask = () => void
-
-type PhoneContext = {
-  lastError?: string
-  peer?: string
-  numberDialed: number
-  cancelDialTone?: CancelableTask
-  cancelRinger?: CancelableTask
-  baresip: Baresip
-  startAgent: () => CancelableTask
-  cancelAgent?: CancelableTask
-}
-
-const gpio = new GPIO({ resetOnClose: true })
-using ringer = gpio.output(17)
-using inputs = gpio.inputGroup({
-  hook: { pin: 27, debounce: 50 },
-  rotaryInUse: { pin: 22, debounce: 50 },
-  rotaryNumber: { pin: 23, debounce: 10 },
-})
-
-export const startPhone = async (agentId: string, apiKey: string) => {
-  await Buzz.setVolume(0.4)
-  log.info(`📞 Hook ${inputs.pins.hook.value}`)
-  await handleInputEvents()
-}
-
-const handleInputEvents = async () => {
-  let digit = 0
-  for await (const event of inputs.events()) {
-    switch (event.pin) {
-      case "hook":
-        const type = event.value == 0 ? "hang_up" : "pick_up"
-        log.info(`📞 Hook ${event.value} sending ${type}`)
-        if (type === "hang_up") {
-          ringer.value = 1
-        } else {
-          ringer.value = 0
-        }
-        break
-
-      case "rotaryInUse":
-        if (event.value === 0) {
-          digit = 0
-        } else {
-          log.info(`📞 Dialed digit: ${digit}`)
-        }
-        break
-
-      case "rotaryNumber":
-        if (event.value === 1) {
-          digit += 1
-        }
-        break
-
-      default:
-        log.error(`📞 Unknown pin event: ${event.pin}`)
-        break
-    }
-  }
-}
-
-const apiKey = process.env.ELEVEN_API_KEY
-const agentId = process.env.ELEVEN_AGENT_ID
-
-if (!apiKey) {
-  console.error("❌ Error: ELEVEN_API_KEY environment variable is required")
-  process.exit(1)
-}
-
-if (!agentId) {
-  console.error(
-    "❌ Error: ELEVEN_AGENT_ID environELEVEN_AGENT_ID=agent_5601k4taw2cvfjzrz6snxpgeh7x8 ELEVEN_API_KEY=sk_0313740f112c5992cb62ed96c974ab19b5916f1ea172471fment variable is required"
-  )
-  console.error("   Create an agent at https://elevenlabs.io/app/conversational-ai")
-  process.exit(1)
-}
-
-await startPhone(agentId, apiKey)
-
-//   log.info("📞 GPIO inputs initialized")
-
-//   // const baresipConfig = join(import.meta.dir, "..", "baresip")
-//   // const baresip = new Baresip(["/usr/bin/baresip", "-v", "-f", baresipConfig])
-
-//   // baresip.registrationSuccess.connect(async () => {
-//   //   log.info("🐻 server connected")
-//   //   const result = await gpio.get(pins.hook)
-//   //   if (result.state === "low") {
-//   //     phoneService.send({ type: "initialized" })
-//   //   } else {
-//   //     phoneService.send({ type: "pick_up" })
-//   //   }
-//   // })
-
-//   // baresip.callReceived.connect(({ contact }) => {
-//   //   log.info(`🐻 incoming call from ${contact}`)
-//   //   phoneService.send({ type: "incoming_call", from: contact })
-//   // })
-
-//   // baresip.callEstablished.connect(({ contact }) => {
-//   //   log.info(`🐻 call established with ${contact}`)
-//   //   phoneService.send({ type: "answered" })
-//   // })
-
-//   // baresip.hungUp.connect(() => {
-//   //   log.info("🐻 call hung up")
-//   //   phoneService.send({ type: "remote_hang_up" })
-//   // })
-
-//   // baresip.connect().catch((error) => {
-//   //   log.error("🐻 connection error:", error)
-//   //   phoneService.send({ type: "error", message: error.message })
-//   // })
-
-//   // baresip.error.connect(async ({ message }) => {
-//   //   log.error("🐻 error:", message)
-//   //   phoneService.send({ type: "error", message })
-//   //   for (let i = 0; i < 4; i++) {
-//   //     await ring(500)
-//   //     await sleep(250)
-//   //   }
-//   //   process.exit(1)
-//   // })
-
-//   const agent = new Agent({
-//     agentId,
-//     apiKey,
-//     tools: {
-//       search_web: (args: { query: string }) => searchWeb(args.query),
-//     },
-//   })
-
-//   handleAgentEvents(agent)
-
-//   const startAgent = () => {
-//     log.info("☎️ Starting agent conversation")
-
-//     if (agentProcess?.stdin) {
-//       agentProcess.stdin.write("start\n")
-//     } else {
-//       log.error("☎️ No agent process stdin available")
-//       phoneService.send({ type: "remote_hang_up" })
-//     }
-
-//     return () => {
-//       log.info("☎️ Stopping agent conversation")
-//       if (agentProcess?.stdin) {
-//         agentProcess.stdin.write("stop\n")
-//       }
-//     }
-//   }
-
-//   const context = (initial?: Partial<PhoneContext>): PhoneContext => ({
-//     numberDialed: 0,
-//     baresip,
-//     startAgent,
-//     ...initial,
-//   })
-
-//   const phoneMachine = createMachine(
-//     "initializing",
-//     // prettier-ignore
-//     {
-//       initializing: state(
-//         transition("initialized", "idle"),
-//         transition("pick_up", "ready", reduce(playDialTone)),
-//         transition("error", "fault", reduce(handleError))),
-//       idle: state(
-//         transition("incoming_call", "incoming", reduce(incomingCall)),
-//         transition("pick_up", "ready", reduce(playDialTone))),
-//       incoming: state(
-//         transition("remote_hang_up", "idle", reduce(stopRinger)),
-//         transition("pick_up", "connected", reduce(callAnswered))),
-//       connected: state(
-//         transition("remote_hang_up", "ready", reduce(playDialTone)),
-//         transition("hang_up", "idle", reduce(stopCall))),
-//       ready: state(
-//         transition("dial_start", "dialing", reduce(dialStart)),
-//         transition("dial_timeout", "aborted", reduce(stopDialTone)),
-//         transition("hang_up", "idle", reduce(stopDialTone))),
-//       dialing: state(
-//         transition("dial_stop", "outgoing", reduce(makeCall), guard((ctx) => !callAgentGuard(ctx))),
-//         transition("dial_stop", "connectedToAgent", reduce(makeAgentCall), guard((ctx) => callAgentGuard(ctx))),
-//         transition("digit_increment", "dialing", reduce(digitIncrement)),
-//         transition("hang_up", "idle", reduce(stopDialTone))),
-//       outgoing: state(
-//         transition("start_agent", "connectedToAgent"),
-//         transition("answered", "connected"),
-//         transition("hang_up", "idle", reduce(stopCall))),
-//       connectedToAgent: state(
-//         transition("remote_hang_up", "ready", reduce(stopAgent)),
-//         transition("hang_up", "idle", reduce(stopAgent))),
-//       aborted: state(
-//         transition("hang_up", "idle")),
-//       fault: state(),
-//     },
-//     context
-//   )
-
-//   const phoneService = interpret(phoneMachine, () => {})
-
-//   d._onEnter = function (machine, to, state, prevState, event) {
-//     log.info(`📱 ${machine.current} -> ${to} (${JSON.stringify(event)})`)
-//   }
-
-//   gpio.monitor(pins.hook, { bias: "pull-up" }, (event) => {
-//     const type = event.edge === "falling" ? "hang_up" : "pick_up"
-//     log.info(`📞 Hook ${event.edge} sending ${type}`)
-//     phoneService.send({ type })
-//   })
-
-//   gpio.monitor(pins.rotaryInUse, { bias: "pull-up", throttleMs: 90 }, (event) => {
-//     const type = event.edge === "falling" ? "dial_start" : "dial_stop"
-//     log.debug(`📞 Rotary in-use ${event.edge} sending ${type}`)
-//     phoneService.send({ type })
-//   })
-
-//   gpio.monitor(pins.rotaryNumber, { bias: "pull-up", throttleMs: 90 }, (event) => {
-//     if (event.edge !== "rising") return
-//     phoneService.send({ type: "digit_increment" })
-//   })
-
-//   // Graceful shutdown handling
-//   const cleanup = () => {
-//     log.info("🛑 Shutting down, stopping agent process")
-//     if (agentProcess?.stdin) {
-//       agentProcess.stdin.write("quit\n")
-//     }
-//   }
-
-//   process.on("SIGINT", cleanup)
-//   process.on("SIGTERM", cleanup)
-//   process.on("exit", cleanup)
-// }
-
-// const handleAgentEvents = (agent: Agent) => {
-//   agent.events.connect(async (event) => {
-//     switch (event.type) {
-//       case "connected":
-//         console.log("✅ Connected to AI agent\n")
-//         break
-
-//       case "user_transcript":
-//         console.log(`👤 You: ${event.transcript}`)
-//         break
-
-//       case "agent_response":
-//         console.log(`🤖 Agent: ${event.response}`)
-//         break
-
-//       case "audio":
-//         await waitingIndicator.stop()
-//         const audioBuffer = Buffer.from(event.audioBase64, "base64")
-//         streamPlayback.write(audioBuffer)
-//         break
-
-//       case "interruption":
-//         console.log("🛑 User interrupted")
-//         streamPlayback?.stop()
-//         streamPlayback = player.playStream() // Reset playback stream
-//         break
-
-//       case "tool_call":
-//         waitingIndicator.start(streamPlayback)
-//         console.log(`🔧 Tool call: ${event.name}(${JSON.stringify(event.args)})`)
-//         break
-
-//       case "tool_result":
-//         console.log(`✅ Tool result: ${JSON.stringify(event.result)}`)
-//         break
-
-//       case "tool_error":
-//         console.error(`❌ Tool error: ${event.error}`)
-//         break
-
-//       case "disconnected":
-//         console.log("\n👋 Conversation ended, returning to dialtone\n")
-//         streamPlayback?.stop()
-//         state = "WAITING_FOR_VOICE"
-//         phoneService.send({ type: "remote_hang_up" })
-//         break
-
-//       case "error":
-//         console.error("Agent error:", event.error)
-//         break
-
-//       case "ping":
-//         break
-
-//       default:
-//         console.log(`😵‍💫 ${event.type}`)
-//         break
-//     }
-//   })
-// }
-
-// const incomingCallRing = (): CancelableTask => {
-//   let abortController = new AbortController()
-
-//   const playRingtone = async () => {
-//     while (!abortController.signal.aborted) {
-//       await ring(2000, abortController.signal)
-//       await sleep(4000)
-//     }
-//   }
-//   playRingtone().catch((error) => log.error("Ringer error:", error))
-
-//   return () => abortController.abort()
-// }
-
-// const handleError = (ctx: PhoneContext, event: { type: "error"; message?: string }) => {
-//   ctx.lastError = event.message
-//   log.error(`Phone error: ${event.message}`)
-//   return ctx
-// }
-
-// const incomingCall = (ctx: PhoneContext, event: { type: "incoming_call"; from?: string }) => {
-//   ctx.peer = event.from
-//   ctx.cancelRinger = incomingCallRing()
-//   log.info(`Incoming call from ${event.from}`)
-
-//   return ctx
-// }
-
-// const stopRinger = (ctx: PhoneContext) => {
-//   ctx.cancelRinger?.()
-//   ctx.cancelRinger = undefined
-//   return ctx
-// }
-
-// const playDialTone = (ctx: PhoneContext) => {
-//   const tone = new ToneGenerator()
-
-//   tone.loopTone([350, 440])
-
-//   ctx.cancelDialTone = () => {
-//     tone.stop()
-//   }
-
-//   return ctx
-// }
-
-// const playOutgoingTone = () => {
-//   const tone = new ToneGenerator()
-//   let canceled = false
-
-//   const play = async () => {
-//     while (!canceled) {
-//       await tone.playTone([440, 480], 2000)
-//       await sleep(4000)
-//     }
-//   }
-
-//   play().catch((error) => log.error("Outgoing tone error:", error))
-
-//   return () => {
-//     tone.stop()
-//     canceled = true
-//   }
-// }
-
-// const dialStart = (ctx: PhoneContext) => {
-//   ctx.numberDialed = 0
-//   ctx = stopDialTone(ctx)
-
-//   return ctx
-// }
-
-// const makeCall = (ctx: PhoneContext) => {
-//   log.info(`Dialing number: ${ctx.numberDialed}`)
-//   if (ctx.numberDialed === 1) {
-//     ctx.baresip.dial("+13476229543")
-//   } else if (ctx.numberDialed === 2) {
-//     ctx.baresip.dial("+18109643563")
-//   } else {
-//     const playTone = async () => {
-//       const tone = new ToneGenerator()
-//       await tone.playTone([900], 200)
-//       await tone.playTone([1350], 200)
-//       await tone.playTone([1750], 200)
-//     }
-//     playTone().catch((error) => log.error("Error playing tone:", error))
-//   }
-
-//   return ctx
-// }
-
-// const makeAgentCall = (ctx: PhoneContext) => {
-//   log.info(`Calling agent`)
-//   ctx.cancelAgent = ctx.startAgent()
-
-//   return ctx
-// }
-
-// const callAgentGuard = (ctx: PhoneContext) => {
-//   return ctx.numberDialed === 10
-// }
-
-// const callAnswered = (ctx: PhoneContext) => {
-//   ctx.baresip.accept()
-
-//   ctx.cancelDialTone?.()
-//   ctx.cancelDialTone = undefined
-
-//   ctx.cancelRinger?.()
-//   ctx.cancelRinger = undefined
-
-//   return ctx
-// }
-
-// const stopCall = (ctx: PhoneContext) => {
-//   ctx.baresip.hangUp()
-//   return ctx
-// }
-
-// const stopAgent = (ctx: PhoneContext) => {
-//   log.info("🛑 Stopping agent")
-//   ctx.cancelAgent?.()
-//   ctx.cancelAgent = undefined
-//   return ctx
-// }
-
-// const stopDialTone = (ctx: PhoneContext) => {
-//   ctx.cancelDialTone?.()
-//   ctx.cancelDialTone = undefined
-
-//   return ctx
-// }
-
-// const digitIncrement = (ctx: PhoneContext) => {
-//   ctx.numberDialed += 1
-//   return ctx
-// }

src/pins/FFI-LEARNINGS.md

@@ -1,173 +0,0 @@
-# Bun FFI Learnings
-
-After researching GitHub examples and Bun's FFI documentation, here's what I found surprising and helpful.
-
-## Surprising Discoveries
-
-### 1. **String Handling is Simpler Than Expected**
-I initially thought you'd need `CString` everywhere, but:
-- For **args**: `FFIType.cstring` just needs `ptr(Buffer.from(str + "\0"))`
-- For **returns**: `FFIType.cstring` automatically converts pointers to JS strings
-- `CString` is mainly for **reading** C strings from pointers, not passing them
-
-**Example from real code:**
-```javascript
-const str = Buffer.from("hello\0", "utf8");
-myFunction(ptr(str));  // Clean and simple!
-```
-
-### 2. **No Type Wrappers Needed**
-Unlike Node-FFI, Bun doesn't require defining structs or complex type wrappers. Just:
-```javascript
-add: {
-  args: [FFIType.i32, FFIType.i32],
-  returns: FFIType.i32,
-}
-```
-
-### 3. **TinyCC JIT Compilation**
-Bun embeds TinyCC and JIT-compiles C bindings on the fly. This means:
-- 2-6x faster than Node-API
-- Zero build step for type conversions
-- Direct memory access without serialization
-
-## Helpful Patterns
-
-### Pattern 1: String Helper
-```typescript
-import { ptr } from "bun:ffi"
-const cstr = (s: string) => ptr(Buffer.from(s + "\0"))
-
-// Usage:
-gpiod.open(cstr("/dev/gpiochip0"))
-```
-
-### Pattern 2: Resource Cleanup
-Always use cleanup handlers:
-```javascript
-const cleanup = () => {
-  lib.symbols.release(resource)
-  lib.symbols.close(chip)
-}
-process.on("SIGINT", cleanup)
-process.on("SIGTERM", cleanup)
-```
-
-### Pattern 3: Destructuring Symbols
-```javascript
-const {
-  symbols: { functionName }
-} = dlopen(path, { /* defs */ })
-
-// Call directly:
-functionName(arg1, arg2)
-```
-
-## Common Mistakes to Avoid
-
-1. **Don't forget null terminators** - `Buffer.from(str + "\0")` not `Buffer.from(str)`
-2. **Pointer lifetime** - Keep TypedArrays alive while C code uses them
-3. **Type mismatches** - `FFIType.i32` vs `FFIType.u32` matters!
-4. **Missing cleanup** - C libraries don't have garbage collection
-
-## Best Practices from Real Examples
-
-1. **Use `suffix` for cross-platform library loading:**
-   ```javascript
-   import { suffix } from "bun:ffi"
-   dlopen(`libname.${suffix}`, { /* ... */ })
-   ```
-
-2. **Check for null on resource creation:**
-   ```javascript
-   const chip = lib.gpiod_chip_open(cstr(path))
-   if (!chip) {
-     console.error("Failed to open")
-     process.exit(1)
-   }
-   ```
-
-3. **Free configs after use:**
-   ```javascript
-   const config = lib.create_config()
-   // ... use config ...
-   lib.free_config(config)  // Don't leak!
-   ```
-
-## What Makes Bun FFI Special
-
-- **Performance**: JIT compilation beats traditional FFI
-- **Simplicity**: No build tools, no gyp, no node-gyp nightmares
-- **TypeScript native**: Works seamlessly with TS type system
-- **Built-in**: Ships with Bun, zero dependencies
-
-## Hard-Won Lessons from GPIO Implementation
-
-### 1. **Enum values MUST match the C header exactly**
-We spent hours debugging because our constants were off by one:
-```typescript
-// WRONG - missing GPIOD_LINE_BIAS_AS_IS
-export const GPIOD_LINE_BIAS_UNKNOWN = 1  // Actually should be 2!
-export const GPIOD_LINE_BIAS_DISABLED = 2 // Actually should be 3!
-export const GPIOD_LINE_BIAS_PULL_UP = 3  // Actually should be 4!
-
-// CORRECT - includes AS_IS at position 1
-export const GPIOD_LINE_BIAS_AS_IS = 1
-export const GPIOD_LINE_BIAS_UNKNOWN = 2
-export const GPIOD_LINE_BIAS_DISABLED = 3
-export const GPIOD_LINE_BIAS_PULL_UP = 4
-export const GPIOD_LINE_BIAS_PULL_DOWN = 5
-```
-**Lesson:** Always grep the header file for the complete enum, don't assume!
-
-### 2. **Hardware debouncing requires correct constants**
-With wrong constants, we were accidentally passing `BIAS_DISABLED` instead of `BIAS_PULL_UP`, which meant:
-- No pull resistor (pin floated)
-- Debouncing didn't work at all
-- Got 6+ events per button press
-
-After fixing: **Clean single events with 1ms debounce via kernel!**
-
-### 3. **Edge detection is event-driven, not polling**
-Don't poll `get_value()` in a loop! Use:
-- `gpiod_line_request_wait_edge_events()` - blocks until interrupt
-- `gpiod_line_request_read_edge_events()` - reads queued events
-- Much more efficient, CPU sleeps until hardware event
-
-### 4. **TypedArray to pointer needs `ptr()`**
-When passing arrays to C functions:
-```typescript
-const offsets = new Uint32Array([21])
-gpiod.gpiod_line_config_add_line_settings(
-  lineConfig,
-  ptr(offsets),  // Need ptr() wrapper!
-  1,
-  lineSettings
-)
-```
-
-### 5. **Signal handling for clean shutdown**
-Generators don't run `finally` blocks if abandoned. Need:
-```typescript
-let shouldExit = false
-process.on("SIGINT", () => { shouldExit = true })
-
-while (!shouldExit) {
-  const ret = wait_edge_events(request, 100_000_000) // Use timeout!
-  // ...
-}
-```
-
-### 6. **Button wiring determines logic**
-- **GND button + pull-UP**: Press = FALLING edge (HIGH→LOW)
-- **VCC button + pull-DOWN**: Press = RISING edge (LOW→HIGH)
-
-Always check initial pin state to verify wiring!
-
-## Resources Used
-
-- Official Bun FFI docs: https://bun.com/docs/runtime/ffi
-- libgpiod v2 C API: https://libgpiod.readthedocs.io/en/latest/core_api.html
-- Python bindings examples: https://github.com/brgl/libgpiod/tree/master/bindings/python/examples
-- Real examples: GitHub searches for bun FFI projects
-- Community discussions: Bun issue tracker and HN threads

src/pins/README.md

@@ -1,341 +0,0 @@
-# Pins
-
-High-level GPIO library for Bun using libgpiod v2 with automatic resource management.
-
-## Features
-
-- Type-safe TypeScript API with autocomplete for pin names
-- Automatic resource cleanup with `using` keyword
-- Hardware debouncing via kernel
-- Event-driven input handling
-- Efficient multi-pin monitoring with input groups
-- Zero external dependencies (uses Bun FFI)
-
-## Requirements
-
-- Bun 1.0+
-- libgpiod v2 (libgpiod.so.3)
-- Linux system with GPIO support (Raspberry Pi, etc.)
-- TypeScript 5.2+ (for `using` keyword support)
-
-## Quick Start
-
-```typescript
-import { GPIO } from "pins"
-
-const gpio = new GPIO()
-
-// Blink an LED
-using led = gpio.output(17)
-for (let i = 0; i < 10; i++) {
-  led.toggle()
-  await Bun.sleep(500)
-}
-
-// Read a button
-using button = gpio.input(20, { pull: "up", debounce: 10 })
-console.log(button.value)
-
-// Listen for button events
-for await (const event of button.events()) {
-  console.log(event.value === 0 ? "Pressed!" : "Released")
-}
-```
-
-## API
-
-### GPIO Class
-
-#### `new GPIO(options?)`
-
-Create a GPIO instance.
-
-```typescript
-const gpio = new GPIO({ chip: "/dev/gpiochip0" }) // defaults to /dev/gpiochip0
-```
-
-#### `gpio.output(pin, options?)`
-
-Configure a pin as output.
-
-```typescript
-using led = gpio.output(17, { initialValue: 0 })
-led.value = 1
-led.toggle()
-```
-
-Options:
-
-- `initialValue?: 0 | 1` - Initial pin state (default: 0)
-
-#### `gpio.input(pin, options?)`
-
-Configure a pin as input.
-
-```typescript
-using button = gpio.input(20, {
-  pull: "up",       // 'up' | 'down' | 'none'
-  debounce: 10,     // milliseconds
-  edge: "both",     // 'rising' | 'falling' | 'both'
-})
-```
-
-Options:
-
-- `pull?: 'up' | 'down' | 'none'` - Pull resistor (default: 'up')
-- `debounce?: number` - Debounce period in milliseconds (default: 0)
-- `edge?: 'rising' | 'falling' | 'both'` - Edge detection (default: 'both')
-
-#### `gpio.inputGroup(config)`
-
-Monitor multiple inputs efficiently with a single file descriptor. Pin names are fully type-safe!
-
-```typescript
-using inputs = gpio.inputGroup({
-  hook: { pin: 20, pull: "up" },
-  rotary: { pin: 21, pull: "up", debounce: 1 },
-  button: { pin: 22, pull: "down" },
-})
-
-// Access individual pins (fully typed!)
-console.log(inputs.pins.hook.value)     // TypeScript knows about .hook
-console.log(inputs.pins.button.value)   // TypeScript knows about .button
-
-// Monitor all pins
-for await (const event of inputs.events()) {
-  console.log(`${event.pin}: ${event.value}`)  // event.pin is "hook" | "rotary" | "button"
-}
-```
-
-#### `gpio.listChips()`
-
-List available GPIO chips.
-
-```typescript
-const chips = await gpio.listChips()
-console.log(chips)
-// [{ path: '/dev/gpiochip0', name: 'pinctrl-bcm2835', label: '...', numLines: 58 }]
-```
-
-### InputPin
-
-```typescript
-using button = gpio.input(20)
-
-// Read current state
-const value: 0 | 1 = button.value
-
-// Wait for specific value
-await button.waitForValue(0)        // wait for LOW
-await button.waitForValue(1, 5000)  // wait for HIGH with 5s timeout
-
-// Event stream
-for await (const event of button.events()) {
-  console.log(event.value, event.timestamp)
-}
-```
-
-### OutputPin
-
-```typescript
-using led = gpio.output(17)
-
-// Read/write state
-led.value = 1
-const value = led.value
-led.toggle()
-```
-
-### InputGroup
-
-```typescript
-using inputs = gpio.inputGroup({
-  switch: { pin: 16, pull: "up" },
-  button: { pin: 20, pull: "up", debounce: 10 }
-})
-
-// Access pins with full type safety
-inputs.pins.switch.value  // ✓ TypeScript autocomplete
-inputs.pins.button.value  // ✓ TypeScript autocomplete
-
-// Wait for specific pin values
-await inputs.pins.button.waitForValue(0)        // wait for button to go LOW
-await inputs.pins.switch.waitForValue(1, 3000)  // wait for switch to go HIGH with timeout
-
-// Monitor all pins
-for await (const event of inputs.events()) {
-  event.pin        // Type: 'switch' | 'button'
-  event.value      // Type: 0 | 1
-  event.timestamp  // Type: bigint (nanoseconds)
-}
-```
-
-## Resource Management
-
-**IMPORTANT:** Always use the `using` keyword to ensure proper cleanup of GPIO resources.
-
-```typescript
-// Good - automatic cleanup
-{
-  using led = gpio.output(17)
-  led.value = 1
-} // Automatically released
-
-// Bad - manual cleanup required
-const led = gpio.output(17)
-led.value = 1
-led.close() // Must call manually
-```
-
-## Hardware Setup
-
-### Pull Resistors
-
-Pull resistors prevent floating input values when nothing is connected to the pin.
-
-- **Pull-up + button to GND**: When released, pin reads HIGH (1). When pressed, pin reads LOW (0).
-- **Pull-down + button to VCC**: When released, pin reads LOW (0). When pressed, pin reads HIGH (1).
-
-**Important:** Match your pull resistor to your wiring:
-- Button to ground → use `pull: "up"`
-- Button to VCC (3.3V) → use `pull: "down"`
-
-### Debouncing
-
-Mechanical buttons "bounce" - they make and break contact multiple times when pressed. Hardware debouncing eliminates these spurious events at the kernel level:
-
-```typescript
-using button = gpio.input(20, {
-  pull: "up",
-  debounce: 10, // 10ms debounce - ignore edges within 10ms of previous edge
-})
-```
-
-Typical debounce values: 5-50ms depending on your button quality.
-
-## Error Handling
-
-```typescript
-try {
-  using led = gpio.output(17)
-} catch (err) {
-  if (err instanceof PermissionError) {
-    // Add user to gpio group: sudo usermod -aG gpio $USER
-  } else if (err instanceof PinInUseError) {
-    // Pin is already in use by another process
-  } else if (err instanceof ChipNotFoundError) {
-    // GPIO chip not found at path
-  }
-}
-```
-
-## Examples
-
-### Simple LED Blink
-
-```typescript
-import { GPIO } from "@/pins"
-
-const gpio = new GPIO()
-using led = gpio.output(17)
-
-for (let i = 0; i < 10; i++) {
-  led.toggle()
-  await Bun.sleep(500)
-}
-```
-
-### Button and Switch
-
-```typescript
-import { GPIO } from "@/pins"
-
-const gpio = new GPIO()
-
-using inputs = gpio.inputGroup({
-  button: { pin: 20, pull: "up", debounce: 10 },
-  switch: { pin: 16, pull: "up" }
-})
-
-using led = gpio.output(21)
-
-// Set LED based on switch state
-if (inputs.pins.switch.value === 1) {
-  led.value = 1
-}
-
-// Toggle LED when button pressed
-for await (const event of inputs.events()) {
-  if (event.pin === "button" && event.value === 0) {
-    led.toggle()
-  } else if (event.pin === "switch") {
-    led.value = event.value
-  }
-}
-```
-
-### Rotary Phone Dialer
-
-```typescript
-import { GPIO } from "@/pins"
-
-const gpio = new GPIO()
-
-using inputs = gpio.inputGroup({
-  hook: { pin: 20, pull: "up" },
-  rotary: { pin: 21, pull: "up", debounce: 1 },
-})
-
-for await (const event of inputs.events()) {
-  if (event.pin === "hook") {
-    console.log(event.value === 0 ? "Phone picked up" : "Phone hung up")
-  } else if (event.pin === "rotary" && event.value === 0) {
-    console.log("Rotary pulse")
-  }
-}
-```
-
-## Troubleshooting
-
-### Permission Denied
-
-Add your user to the `gpio` group:
-
-```bash
-sudo usermod -aG gpio $USER
-```
-
-Then log out and back in.
-
-### Pin Already in Use
-
-Another process has claimed the pin. Stop that process or use a different pin.
-
-### Chip Not Found
-
-Verify GPIO hardware is enabled:
-
-```bash
-ls /dev/gpiochip*
-```
-
-If you see "libgpiod v2 (libgpiod.so.3) not found", install it:
-
-```bash
-sudo apt-get install libgpiod-dev
-```
-
-## Design Philosophy
-
-This library provides a simple, type-safe interface to GPIO:
-
-- **Low-level values** - Events return raw 0/1 values, let users interpret semantics
-- **Simple by default** - Sensible defaults for common use cases
-- **Explicit when needed** - Full control via options
-- **Type-safe** - TypeScript catches errors at compile time and provides autocomplete
-- **Resource-safe** - `using` keyword prevents leaks
-
-## References
-
-- [libgpiod v2 documentation](https://libgpiod.readthedocs.io/)
-- [Bun FFI documentation](https://bun.sh/docs/api/ffi)

src/pins/errors.ts

@@ -1,53 +0,0 @@
-export class GPIOError extends Error {
-  code: string
-
-  constructor(message: string, code: string) {
-    super(message)
-    this.name = "GPIOError"
-    this.code = code
-  }
-}
-
-export class PermissionError extends GPIOError {
-  constructor(path: string) {
-    super(
-      `Permission denied accessing ${path}. Try:\n` +
-        `  1. Add your user to the 'gpio' group: sudo usermod -aG gpio $USER\n` +
-        `  2. Log out and back in\n` +
-        `  3. Or run with sudo (not recommended for production)`,
-      "PERMISSION_DENIED"
-    )
-    this.name = "PermissionError"
-  }
-}
-
-export class PinInUseError extends GPIOError {
-  constructor(pin: number) {
-    super(
-      `Pin ${pin} is already in use by another process or request. ` +
-        `Only one process can control a GPIO pin at a time.`,
-      "PIN_IN_USE"
-    )
-    this.name = "PinInUseError"
-  }
-}
-
-export class ChipNotFoundError extends GPIOError {
-  constructor(path: string) {
-    super(
-      `GPIO chip not found at ${path}. Check that:\n` +
-        `  1. The path exists (ls ${path})\n` +
-        `  2. GPIO hardware is enabled in your system configuration\n` +
-        `  3. You're running on compatible hardware (Raspberry Pi, etc.)`,
-      "CHIP_NOT_FOUND"
-    )
-    this.name = "ChipNotFoundError"
-  }
-}
-
-export class InvalidConfigError extends GPIOError {
-  constructor(message: string) {
-    super(message, "INVALID_CONFIG")
-    this.name = "InvalidConfigError"
-  }
-}

src/pins/ffi.ts

@@ -1,171 +0,0 @@
-import { dlopen, FFIType, ptr } from "bun:ffi"
-
-export const cstr = (s: string) => ptr(Buffer.from(s + "\0"))
-
-const findLibgpiod = () => {
-  try {
-    dlopen("libgpiod.so.3", {
-      gpiod_chip_open: {
-        args: [FFIType.cstring],
-        returns: FFIType.ptr,
-      },
-    })
-    return "libgpiod.so.3"
-  } catch {
-    throw new Error(
-      "libgpiod v2 (libgpiod.so.3) not found. Install with: sudo apt-get install libgpiod-dev"
-    )
-  }
-}
-
-// Constants MUST match C header exactly
-export const GPIOD_LINE_DIRECTION_AS_IS = 1
-export const GPIOD_LINE_DIRECTION_INPUT = 2
-export const GPIOD_LINE_DIRECTION_OUTPUT = 3
-
-export const GPIOD_LINE_BIAS_AS_IS = 1
-export const GPIOD_LINE_BIAS_UNKNOWN = 2
-export const GPIOD_LINE_BIAS_DISABLED = 3
-export const GPIOD_LINE_BIAS_PULL_UP = 4
-export const GPIOD_LINE_BIAS_PULL_DOWN = 5
-
-export const GPIOD_LINE_EDGE_NONE = 1
-export const GPIOD_LINE_EDGE_RISING = 2
-export const GPIOD_LINE_EDGE_FALLING = 3
-export const GPIOD_LINE_EDGE_BOTH = 4
-
-export const GPIOD_EDGE_EVENT_RISING_EDGE = 1
-export const GPIOD_EDGE_EVENT_FALLING_EDGE = 2
-
-const lib = dlopen(findLibgpiod(), {
-  gpiod_chip_open: {
-    args: [FFIType.cstring],
-    returns: FFIType.ptr,
-  },
-  gpiod_chip_close: {
-    args: [FFIType.ptr],
-    returns: FFIType.void,
-  },
-  gpiod_chip_get_info: {
-    args: [FFIType.ptr],
-    returns: FFIType.ptr,
-  },
-  gpiod_chip_info_get_name: {
-    args: [FFIType.ptr],
-    returns: FFIType.cstring,
-  },
-  gpiod_chip_info_get_label: {
-    args: [FFIType.ptr],
-    returns: FFIType.cstring,
-  },
-  gpiod_chip_info_get_num_lines: {
-    args: [FFIType.ptr],
-    returns: FFIType.u64,
-  },
-  gpiod_request_config_new: {
-    args: [],
-    returns: FFIType.ptr,
-  },
-  gpiod_request_config_set_consumer: {
-    args: [FFIType.ptr, FFIType.cstring],
-    returns: FFIType.void,
-  },
-  gpiod_request_config_free: {
-    args: [FFIType.ptr],
-    returns: FFIType.void,
-  },
-  gpiod_line_config_new: {
-    args: [],
-    returns: FFIType.ptr,
-  },
-  gpiod_line_config_add_line_settings: {
-    args: [FFIType.ptr, FFIType.ptr, FFIType.u64, FFIType.ptr],
-    returns: FFIType.i32,
-  },
-  gpiod_line_config_free: {
-    args: [FFIType.ptr],
-    returns: FFIType.void,
-  },
-  gpiod_line_settings_new: {
-    args: [],
-    returns: FFIType.ptr,
-  },
-  gpiod_line_settings_set_direction: {
-    args: [FFIType.ptr, FFIType.i32],
-    returns: FFIType.i32,
-  },
-  gpiod_line_settings_set_output_value: {
-    args: [FFIType.ptr, FFIType.i32],
-    returns: FFIType.i32,
-  },
-  gpiod_line_settings_set_bias: {
-    args: [FFIType.ptr, FFIType.i32],
-    returns: FFIType.i32,
-  },
-  gpiod_line_settings_set_edge_detection: {
-    args: [FFIType.ptr, FFIType.i32],
-    returns: FFIType.i32,
-  },
-  gpiod_line_settings_set_debounce_period_us: {
-    args: [FFIType.ptr, FFIType.u64],
-    returns: FFIType.i32,
-  },
-  gpiod_line_settings_free: {
-    args: [FFIType.ptr],
-    returns: FFIType.void,
-  },
-  gpiod_chip_request_lines: {
-    args: [FFIType.ptr, FFIType.ptr, FFIType.ptr],
-    returns: FFIType.ptr,
-  },
-  gpiod_line_request_release: {
-    args: [FFIType.ptr],
-    returns: FFIType.void,
-  },
-  gpiod_line_request_get_fd: {
-    args: [FFIType.ptr],
-    returns: FFIType.i32,
-  },
-  gpiod_line_request_set_value: {
-    args: [FFIType.ptr, FFIType.u32, FFIType.i32],
-    returns: FFIType.i32,
-  },
-  gpiod_line_request_get_value: {
-    args: [FFIType.ptr, FFIType.u32],
-    returns: FFIType.i32,
-  },
-  gpiod_line_request_wait_edge_events: {
-    args: [FFIType.ptr, FFIType.i64],
-    returns: FFIType.i32,
-  },
-  gpiod_line_request_read_edge_events: {
-    args: [FFIType.ptr, FFIType.ptr, FFIType.u64],
-    returns: FFIType.i32,
-  },
-  gpiod_edge_event_buffer_new: {
-    args: [FFIType.u64],
-    returns: FFIType.ptr,
-  },
-  gpiod_edge_event_buffer_free: {
-    args: [FFIType.ptr],
-    returns: FFIType.void,
-  },
-  gpiod_edge_event_buffer_get_event: {
-    args: [FFIType.ptr, FFIType.u64],
-    returns: FFIType.ptr,
-  },
-  gpiod_edge_event_get_line_offset: {
-    args: [FFIType.ptr],
-    returns: FFIType.u32,
-  },
-  gpiod_edge_event_get_event_type: {
-    args: [FFIType.ptr],
-    returns: FFIType.i32,
-  },
-  gpiod_edge_event_get_timestamp_ns: {
-    args: [FFIType.ptr],
-    returns: FFIType.u64,
-  },
-})
-
-export const gpiod = lib.symbols

src/pins/gpio.ts

@@ -1,199 +0,0 @@
-import { ptr } from "bun:ffi"
-import { readdir } from "node:fs/promises"
-import { gpiod, cstr, GPIOD_LINE_DIRECTION_OUTPUT, GPIOD_LINE_DIRECTION_INPUT } from "./ffi"
-import { OutputPin } from "./output"
-import { InputPin } from "./input"
-import { InputGroup } from "./input-group"
-import { ChipNotFoundError, PinInUseError } from "./errors"
-import { mapPullToLibgpiod, mapEdgeToLibgpiod, hashInputConfig } from "./utils"
-import type { OutputOptions, InputOptions, PullMode, ChipInfo } from "./types"
-
-export class GPIO {
-  #chipPath: string
-  #resetOnClose: boolean
-
-  constructor(options?: { chip?: string; resetOnClose?: boolean }) {
-    this.#chipPath = options?.chip ?? "/dev/gpiochip0"
-    this.#resetOnClose = options?.resetOnClose ?? false
-  }
-
-  output(pin: number, options?: OutputOptions): OutputPin {
-    const initialValue = options?.initialValue ?? 0
-
-    const chip = gpiod.gpiod_chip_open(cstr(this.#chipPath))
-    if (!chip) {
-      throw new ChipNotFoundError(this.#chipPath)
-    }
-
-    try {
-      const reqConfig = gpiod.gpiod_request_config_new()
-      gpiod.gpiod_request_config_set_consumer(reqConfig, cstr("bun-gpio"))
-
-      const lineSettings = gpiod.gpiod_line_settings_new()
-      gpiod.gpiod_line_settings_set_direction(lineSettings, GPIOD_LINE_DIRECTION_OUTPUT)
-      gpiod.gpiod_line_settings_set_output_value(lineSettings, initialValue)
-
-      const lineConfig = gpiod.gpiod_line_config_new()
-      const offsets = new Uint32Array([pin])
-      gpiod.gpiod_line_config_add_line_settings(lineConfig, ptr(offsets), 1, lineSettings)
-
-      const request = gpiod.gpiod_chip_request_lines(chip, reqConfig, lineConfig)
-
-      gpiod.gpiod_line_settings_free(lineSettings)
-      gpiod.gpiod_line_config_free(lineConfig)
-      gpiod.gpiod_request_config_free(reqConfig)
-
-      if (!request) {
-        gpiod.gpiod_chip_close(chip)
-        throw new PinInUseError(pin)
-      }
-
-      let resetValue: 0 | 1 | undefined
-      if (this.#resetOnClose) {
-        const currentValue = gpiod.gpiod_line_request_get_value(request, pin)
-        if (currentValue === -1) {
-          console.warn(`Failed to read initial value for pin ${pin}, assuming 0`)
-          resetValue = 0
-        } else {
-          resetValue = currentValue as 0 | 1
-        }
-      }
-
-      return new OutputPin(chip, request, pin, resetValue)
-    } catch (err) {
-      gpiod.gpiod_chip_close(chip)
-      throw err
-    }
-  }
-
-  input(pin: number, options?: InputOptions): InputPin<"pin"> {
-    const group = this.inputGroup({
-      pin: { pin, ...options },
-    })
-
-    return new InputPin(group, "pin")
-  }
-
-  inputGroup<T extends Record<string, { pin: number } & InputOptions>>(
-    config: T
-  ): InputGroup<keyof T & string> {
-    const chip = gpiod.gpiod_chip_open(cstr(this.#chipPath))
-    if (!chip) {
-      throw new ChipNotFoundError(this.#chipPath)
-    }
-
-    try {
-      const reqConfig = gpiod.gpiod_request_config_new()
-      gpiod.gpiod_request_config_set_consumer(reqConfig, cstr("bun-gpio"))
-
-      const lineConfig = gpiod.gpiod_line_config_new()
-
-      const groups = new Map<
-        string,
-        Array<{ name: string; pin: number; pull: PullMode; options: InputOptions }>
-      >()
-
-      for (const [name, pinConfig] of Object.entries(config)) {
-        const pull = pinConfig.pull ?? "up"
-        const debounce = pinConfig.debounce ?? 0
-        const edge = pinConfig.edge ?? "both"
-
-        const hash = hashInputConfig(pull, debounce, edge)
-        if (!groups.has(hash)) groups.set(hash, [])
-        groups.get(hash)!.push({ name, pin: pinConfig.pin, pull, options: pinConfig })
-      }
-
-      for (const [hash, pins] of groups) {
-        const firstPin = pins[0]
-        if (!firstPin) continue
-
-        const pull = firstPin.options.pull ?? "up"
-        const debounce = firstPin.options.debounce ?? 0
-        const edge = firstPin.options.edge ?? "both"
-
-        const lineSettings = gpiod.gpiod_line_settings_new()
-        gpiod.gpiod_line_settings_set_direction(lineSettings, GPIOD_LINE_DIRECTION_INPUT)
-        gpiod.gpiod_line_settings_set_bias(lineSettings, mapPullToLibgpiod(pull))
-        gpiod.gpiod_line_settings_set_edge_detection(lineSettings, mapEdgeToLibgpiod(edge))
-        gpiod.gpiod_line_settings_set_debounce_period_us(lineSettings, debounce * 1000)
-
-        const offsets = new Uint32Array(pins.map((p) => p.pin))
-        gpiod.gpiod_line_config_add_line_settings(
-          lineConfig,
-          ptr(offsets),
-          pins.length,
-          lineSettings
-        )
-
-        gpiod.gpiod_line_settings_free(lineSettings)
-      }
-
-      const request = gpiod.gpiod_chip_request_lines(chip, reqConfig, lineConfig)
-
-      gpiod.gpiod_line_config_free(lineConfig)
-      gpiod.gpiod_request_config_free(reqConfig)
-
-      if (!request) {
-        gpiod.gpiod_chip_close(chip)
-        const firstConfig = Object.values(config)[0]
-        throw new PinInUseError(firstConfig?.pin ?? 0)
-      }
-
-      const pinMap: Record<string, { offset: number; pull: PullMode }> = {}
-      for (const [name, pinConfig] of Object.entries(config)) {
-        pinMap[name] = {
-          offset: pinConfig.pin,
-          pull: pinConfig.pull ?? "up",
-        }
-      }
-
-      return new InputGroup(chip, request, pinMap)
-    } catch (err) {
-      gpiod.gpiod_chip_close(chip)
-      throw err
-    }
-  }
-
-  async listChips(): Promise<ChipInfo[]> {
-    const chips: ChipInfo[] = []
-
-    try {
-      const files = await readdir("/dev")
-      const chipFiles = files.filter((f) => f.startsWith("gpiochip"))
-
-      for (const file of chipFiles) {
-        const path = `/dev/${file}`
-
-        try {
-          const chip = gpiod.gpiod_chip_open(cstr(path))
-          if (!chip) continue
-
-          const info = gpiod.gpiod_chip_get_info(chip)
-          if (!info) {
-            gpiod.gpiod_chip_close(chip)
-            continue
-          }
-
-          const name = gpiod.gpiod_chip_info_get_name(info)
-          const label = gpiod.gpiod_chip_info_get_label(info)
-          const numLines = gpiod.gpiod_chip_info_get_num_lines(info)
-
-          chips.push({
-            path,
-            name: String(name || ""),
-            label: String(label || ""),
-            numLines: Number(numLines),
-          })
-
-          gpiod.gpiod_chip_close(chip)
-        } catch {
-          continue
-        }
-      }
-    } catch {
-      // /dev might not be accessible, return empty array
-    }
-
-    return chips
-  }
-}

src/pins/index.ts

@@ -1,17 +0,0 @@
-export { GPIO } from "./gpio"
-export {
-  GPIOError,
-  PermissionError,
-  PinInUseError,
-  ChipNotFoundError,
-  InvalidConfigError,
-} from "./errors"
-export type {
-  InputOptions,
-  OutputOptions,
-  InputEvent,
-  InputGroupEvent,
-  ChipInfo,
-  PullMode,
-  EdgeMode,
-} from "./types"

src/pins/input-group.ts

@@ -1,205 +0,0 @@
-import type { Pointer } from "bun:ffi"
-import { gpiod } from "./ffi"
-import { mapLibgpiodEdgeToPressedState } from "./utils"
-import type { PullMode, InputEvent, InputGroupEvent, PinConfig } from "./types"
-
-export class InputGroup<T extends string = string> {
-  #closed = false
-  #chip: Pointer
-  #request: Pointer
-  #pinMap: Map<string, { offset: number; pull: PullMode }>
-  #offsetMap: Map<number, { name: string; pull: PullMode }>
-  #eventBuffer: Pointer | undefined
-  #eventListeners: Array<(event: InputGroupEvent<T>) => void> = []
-  #closeHandlers: Array<() => void> = []
-
-  constructor(chip: Pointer, request: Pointer, pinConfig: PinConfig) {
-    this.#chip = chip
-    this.#request = request
-
-    this.#pinMap = new Map()
-    this.#offsetMap = new Map()
-
-    for (const [name, config] of Object.entries(pinConfig)) {
-      this.#pinMap.set(name, config)
-      this.#offsetMap.set(config.offset, { name, pull: config.pull })
-    }
-  }
-
-  get pins(): Record<
-    T,
-    { readonly value: 0 | 1; waitForValue: (targetValue: 0 | 1, timeout?: number) => Promise<void> }
-  > {
-    const result = {} as Record<
-      T,
-      {
-        readonly value: 0 | 1
-        waitForValue: (targetValue: 0 | 1, timeout?: number) => Promise<void>
-      }
-    >
-
-    for (const [name, config] of this.#pinMap) {
-      const offset = config.offset
-      const closed = () => this.#closed
-      const request = this.#request
-      const pinName = name
-
-      Object.defineProperty(result, name, {
-        get: () => ({
-          get value(): 0 | 1 {
-            if (closed()) throw new Error("InputGroup is closed")
-            const ret = gpiod.gpiod_line_request_get_value(request, offset)
-            if (ret === -1) throw new Error("Failed to get pin value")
-            return ret as 0 | 1
-          },
-          waitForValue: (targetValue: 0 | 1, timeout?: number) =>
-            this.#waitForPinValue(pinName as T, targetValue, timeout),
-        }),
-        enumerable: true,
-      })
-    }
-
-    return result
-  }
-
-  async #waitForPinValue(pinName: T, targetValue: 0 | 1, timeout?: number): Promise<void> {
-    return new Promise((resolve, reject) => {
-      if (this.#closed) {
-        reject(new Error("InputGroup is closed"))
-        return
-      }
-
-      let timeoutId: ReturnType<typeof setTimeout> | undefined
-
-      const cleanup = () => {
-        if (timeoutId) clearTimeout(timeoutId)
-        this.#eventListeners = this.#eventListeners.filter((l) => l !== listener)
-        this.#closeHandlers = this.#closeHandlers.filter((h) => h !== onClose)
-      }
-
-      const onClose = () => {
-        cleanup()
-        reject(new Error("InputGroup closed while waiting"))
-      }
-
-      const listener = (event: InputGroupEvent<T>) => {
-        if (event.pin !== pinName) return
-        if (event.value !== targetValue) return
-
-        cleanup()
-        resolve()
-      }
-
-      if (timeout) {
-        timeoutId = setTimeout(() => {
-          cleanup()
-          reject(new Error(`Timeout waiting for pin ${pinName} to become ${targetValue}`))
-        }, timeout)
-      }
-
-      this.#eventListeners.push(listener)
-      this.#closeHandlers.push(onClose)
-      this.#startEventLoop()
-    })
-  }
-
-  async *events(): AsyncGenerator<InputGroupEvent<T>> {
-    if (this.#closed) throw new Error("InputGroup is closed")
-
-    const eventQueue: InputGroupEvent<T>[] = []
-    const listener = (event: InputGroupEvent<T>) => {
-      eventQueue.push(event)
-    }
-
-    this.#eventListeners.push(listener)
-    this.#startEventLoop()
-
-    try {
-      while (!this.#closed) {
-        if (eventQueue.length > 0) {
-          for (const event of eventQueue) {
-            yield event
-          }
-          eventQueue.length = 0
-        } else {
-          await Bun.sleep(0)
-        }
-      }
-    } finally {
-      this.#eventListeners = this.#eventListeners.filter((l) => l !== listener)
-    }
-  }
-
-  #startEventLoop() {
-    if (this.#eventBuffer !== undefined) return
-
-    const buffer = gpiod.gpiod_edge_event_buffer_new(1)
-    if (!buffer) throw new Error("Failed to create event buffer")
-
-    this.#eventBuffer = buffer
-    this.#runEventLoop()
-  }
-
-  async #runEventLoop() {
-    try {
-      while (!this.#closed && this.#eventListeners.length > 0) {
-        const ret = gpiod.gpiod_line_request_wait_edge_events(this.#request, 100_000_000)
-
-        if (ret === -1 || ret === 0) {
-          await Bun.sleep(0)
-          continue
-        }
-
-        const numEvents = gpiod.gpiod_line_request_read_edge_events(
-          this.#request,
-          this.#eventBuffer!,
-          1
-        )
-
-        if (numEvents > 0) {
-          const event = gpiod.gpiod_edge_event_buffer_get_event(this.#eventBuffer!, 0)
-          const edgeType = gpiod.gpiod_edge_event_get_event_type(event)
-          const timestamp = gpiod.gpiod_edge_event_get_timestamp_ns(event)
-          const offset = gpiod.gpiod_edge_event_get_line_offset(event)
-
-          const pinInfo = this.#offsetMap.get(offset)
-          if (!pinInfo) continue
-
-          const pressed = mapLibgpiodEdgeToPressedState(edgeType, pinInfo.pull)
-          const value = (
-            pressed ? (pinInfo.pull === "up" ? 0 : 1) : pinInfo.pull === "up" ? 1 : 0
-          ) as 0 | 1
-          const inputEvent: InputGroupEvent<T> = { pin: pinInfo.name as T, value, timestamp }
-
-          for (const listener of this.#eventListeners) {
-            listener(inputEvent)
-          }
-
-          await Bun.sleep(0)
-        }
-      }
-    } finally {
-      if (this.#eventBuffer) {
-        gpiod.gpiod_edge_event_buffer_free(this.#eventBuffer)
-        this.#eventBuffer = undefined
-      }
-    }
-  }
-
-  close() {
-    if (this.#closed) return
-    this.#closed = true
-
-    for (const handler of this.#closeHandlers) {
-      handler()
-    }
-    this.#closeHandlers = []
-
-    gpiod.gpiod_line_request_release(this.#request)
-    gpiod.gpiod_chip_close(this.#chip)
-  }
-
-  [Symbol.dispose]() {
-    this.close()
-  }
-}

src/pins/input.ts

@@ -1,39 +0,0 @@
-import type { Pointer } from "bun:ffi"
-import { InputGroup } from "./input-group"
-import type { PullMode, InputEvent } from "./types"
-
-export class InputPin<T extends string = string> {
-  #group: InputGroup<T>
-  #pinName: T
-
-  constructor(group: InputGroup<T>, pinName: T) {
-    this.#group = group
-    this.#pinName = pinName
-  }
-
-  get value(): 0 | 1 {
-    return this.#group.pins[this.#pinName]!.value
-  }
-
-  async waitForValue(targetValue: 0 | 1, timeout?: number): Promise<void> {
-    for await (const event of this.#group.events()) {
-      if (event.value === targetValue) {
-        return
-      }
-    }
-  }
-
-  async *events(): AsyncGenerator<InputEvent> {
-    for await (const event of this.#group.events()) {
-      yield { value: event.value, timestamp: event.timestamp }
-    }
-  }
-
-  close() {
-    this.#group.close()
-  }
-
-  [Symbol.dispose]() {
-    this.close()
-  }
-}

src/pins/output.ts

@@ -1,50 +0,0 @@
-import type { Pointer } from "bun:ffi"
-import { gpiod } from "./ffi"
-
-export class OutputPin {
-  #closed = false
-  #chip: Pointer
-  #request: Pointer
-  #pin: number
-  #resetValue?: 0 | 1
-
-  constructor(chip: Pointer, request: Pointer, pin: number, resetValue?: 0 | 1) {
-    this.#chip = chip
-    this.#request = request
-    this.#pin = pin
-    this.#resetValue = resetValue
-  }
-
-  get value(): 0 | 1 {
-    if (this.#closed) throw new Error("OutputPin is closed")
-    const ret = gpiod.gpiod_line_request_get_value(this.#request, this.#pin)
-    if (ret === -1) throw new Error("Failed to get pin value")
-    return ret as 0 | 1
-  }
-
-  set value(val: 0 | 1) {
-    if (this.#closed) throw new Error("OutputPin is closed")
-    const ret = gpiod.gpiod_line_request_set_value(this.#request, this.#pin, val)
-    if (ret === -1) throw new Error("Failed to set pin value")
-  }
-
-  toggle() {
-    this.value = this.value === 0 ? 1 : 0
-  }
-
-  close() {
-    if (this.#closed) return
-    this.#closed = true
-
-    if (this.#resetValue !== undefined) {
-      gpiod.gpiod_line_request_set_value(this.#request, this.#pin, this.#resetValue)
-    }
-
-    gpiod.gpiod_line_request_release(this.#request)
-    gpiod.gpiod_chip_close(this.#chip)
-  }
-
-  [Symbol.dispose]() {
-    this.close()
-  }
-}

src/pins/types.ts

@@ -1,30 +0,0 @@
-export type PullMode = "up" | "down" | "none"
-export type EdgeMode = "rising" | "falling" | "both"
-
-export type InputOptions = {
-  pull?: PullMode // default: 'up'
-  debounce?: number // milliseconds, default: 0
-  edge?: EdgeMode // default: 'both'
-}
-
-export type OutputOptions = {
-  initialValue?: 0 | 1 // default: 0
-}
-
-export type InputEvent = {
-  value: 0 | 1
-  timestamp: bigint // nanoseconds
-}
-
-export type InputGroupEvent<T extends string = string> = InputEvent & {
-  pin: T // name of the pin that fired
-}
-
-export type ChipInfo = {
-  path: string
-  name: string
-  label: string
-  numLines: number
-}
-
-export type PinConfig = Record<string, { offset: number; pull: PullMode }>

src/pins/utils.ts

@@ -1,60 +0,0 @@
-import { ptr } from "bun:ffi"
-import {
-  GPIOD_LINE_BIAS_PULL_UP,
-  GPIOD_LINE_BIAS_PULL_DOWN,
-  GPIOD_LINE_BIAS_DISABLED,
-  GPIOD_LINE_EDGE_RISING,
-  GPIOD_LINE_EDGE_FALLING,
-  GPIOD_LINE_EDGE_BOTH,
-  GPIOD_EDGE_EVENT_RISING_EDGE,
-  GPIOD_EDGE_EVENT_FALLING_EDGE,
-} from "./ffi"
-import type { PullMode, EdgeMode } from "./types"
-
-export const cstr = (s: string) => ptr(Buffer.from(s + "\0"))
-
-export const mapPullToLibgpiod = (pull: PullMode): number => {
-  switch (pull) {
-    case "up":
-      return GPIOD_LINE_BIAS_PULL_UP
-    case "down":
-      return GPIOD_LINE_BIAS_PULL_DOWN
-    case "none":
-      return GPIOD_LINE_BIAS_DISABLED
-  }
-}
-
-export const mapEdgeToLibgpiod = (edge: EdgeMode): number => {
-  switch (edge) {
-    case "rising":
-      return GPIOD_LINE_EDGE_RISING
-    case "falling":
-      return GPIOD_LINE_EDGE_FALLING
-    case "both":
-      return GPIOD_LINE_EDGE_BOTH
-  }
-}
-
-// Hardware logic:
-// - Pull-up + button to GND: pressing pulls line LOW (falling edge = pressed)
-// - Pull-down + button to VCC: pressing pulls line HIGH (rising edge = pressed)
-export const mapLibgpiodEdgeToPressedState = (
-  edgeType: number,
-  pull: PullMode
-): boolean => {
-  if (pull === "up") {
-    return edgeType === GPIOD_EDGE_EVENT_FALLING_EDGE
-  } else if (pull === "down") {
-    return edgeType === GPIOD_EDGE_EVENT_RISING_EDGE
-  } else {
-    return edgeType === GPIOD_EDGE_EVENT_RISING_EDGE
-  }
-}
-
-export const hashInputConfig = (
-  pull: PullMode,
-  debounce: number,
-  edge: EdgeMode
-): string => {
-  return `${pull}-${debounce}-${edge}`
-}

src/services/server/components/ConnectingPage.tsx

@@ -1,8 +1,8 @@
-import { Layout } from "./Layout"
+import { Layout } from "./Layout";
 
 type ConnectingPageProps = {
-  ssid: string
+  ssid: string;
-}
+};
 
 export const ConnectingPage = ({ ssid }: ConnectingPageProps) => (
   <Layout title="Connecting...">
@@ -11,9 +11,7 @@ export const ConnectingPage = ({ ssid }: ConnectingPageProps) => (
       <p>
         <strong>SSID:</strong> {ssid}
       </p>
-      <p id="status">
+      <p id="status">Testing connection... <span id="countdown">10</span>s remaining</p>
-        Testing connection... <span id="countdown">10</span>s remaining
-      </p>
       <p>
         <small>Waiting to see if connection succeeds...</small>
       </p>
@@ -28,12 +26,8 @@ export const ConnectingPage = ({ ssid }: ConnectingPageProps) => (
       <hr />
       <h3>Next Steps:</h3>
       <ol>
-        <li>
+        <li>Switch your device to the <strong>{ssid}</strong> network</li>
-          Switch your device to the <strong>{ssid}</strong> network
+        <li>Visit <a href="http://yellow-phone.local">http://yellow-phone.local</a></li>
-        </li>
-        <li>
-          Visit <a href="http://phone.local">http://phone.local</a>
-        </li>
       </ol>
       <p>
         <small>The AP will shut down automatically since the Pi is now connected to WiFi.</small>
@@ -42,14 +36,10 @@ export const ConnectingPage = ({ ssid }: ConnectingPageProps) => (
 
     <div id="error-state" style="display: none;">
       <h1>❌ Connection Failed</h1>
-      <p>
+      <p>Could not connect to <strong>{ssid}</strong></p>
-        Could not connect to <strong>{ssid}</strong>
-      </p>
       <p>The password may be incorrect, or the network is out of range.</p>
       <p>The AP is still running - you can try again.</p>
-      <a href="/" role="button">
+      <a href="/" role="button">← Try Again</a>
-        ← Try Again
-      </a>
     </div>
 
     <script>{`
@@ -81,4 +71,4 @@ export const ConnectingPage = ({ ssid }: ConnectingPageProps) => (
       }, 1000);
     `}</script>
   </Layout>
-)
+);

src/services/server/server.tsx

@@ -1,99 +1,98 @@
 #!/usr/bin/env bun
 
-import { Hono } from "hono"
+import { Hono } from "hono";
-import { join } from "node:path"
+import {join} from "node:path";
-import { $ } from "bun"
+import { $ } from "bun";
-import { IndexPage } from "./components/IndexPage"
+import { IndexPage } from "./components/IndexPage";
-import { LogsPage } from "./components/LogsPage"
+import { LogsPage } from "./components/LogsPage";
-import { ConnectingPage } from "./components/ConnectingPage"
+import { ConnectingPage } from "./components/ConnectingPage";
 
-const app = new Hono()
+const app = new Hono();
 
 // Ping endpoint for connectivity check
 app.get("/ping", (c) => {
-  return c.json({ ok: true })
+  return c.json({ ok: true });
-})
+});
 
 // Serve static CSS
 app.get("/pico.css", async (c) => {
-  const cssPath = join(import.meta.dir, "./static/pico.min.css")
+  const cssPath = join(import.meta.dir, "./static/pico.min.css");
-  const file = Bun.file(cssPath)
+  const file = Bun.file(cssPath);
-  return new Response(file)
+  return new Response(file);
-})
+});
 
 // API endpoint to get available WiFi networks
 app.get("/api/networks", async (c) => {
   try {
-    const result = await $`nmcli -t -f SSID device wifi list`.text()
+    const result = await $`nmcli -t -f SSID device wifi list`.text();
     const networks = result
       .trim()
-      .split("\n")
+      .split('\n')
-      .filter((ssid) => ssid && ssid !== "SSID") // Remove empty and header
+      .filter(ssid => ssid && ssid !== 'SSID') // Remove empty and header
-      .filter((ssid, index, self) => self.indexOf(ssid) === index) // Remove duplicates
+      .filter((ssid, index, self) => self.indexOf(ssid) === index); // Remove duplicates
-    return c.json({ networks })
+    return c.json({ networks });
   } catch (error) {
-    return c.json({ networks: [], error: String(error) }, 500)
+    return c.json({ networks: [], error: String(error) }, 500);
   }
-})
+});
 
 // API endpoint to get logs (for auto-refresh)
 app.get("/api/logs", async (c) => {
   try {
-    const logs =
+    const logs = await $`journalctl -u phone-ap.service -u phone-web.service -n 200 --no-pager`.text();
-      await $`journalctl -u phone-ap.service -u phone-web.service -n 200 --no-pager`.text()
+    return c.json({ logs: logs.trim() });
-    return c.json({ logs: logs.trim() })
   } catch (error) {
-    return c.json({ logs: "", error: String(error) }, 500)
+    return c.json({ logs: '', error: String(error) }, 500);
   }
-})
+});
 
 // Main WiFi configuration page
 app.get("/", (c) => {
-  return c.html(<IndexPage />)
+  return c.html(<IndexPage />);
-})
+});
 
 // Service logs with auto-refresh
 app.get("/logs", async (c) => {
   try {
     const logs =
-      await $`journalctl -u phone-ap.service -u phone-web.service -n 200 --no-pager`.text()
+      await $`journalctl -u phone-ap.service -u phone-web.service -n 200 --no-pager`.text();
-    return c.html(<LogsPage logs={logs} />)
+    return c.html(<LogsPage logs={logs} />);
   } catch (error) {
-    throw new Error(`Failed to fetch logs: ${error}`)
+    throw new Error(`Failed to fetch logs: ${error}`);
   }
-})
+});
 
 // Handle WiFi configuration submission
 app.post("/save", async (c) => {
-  const formData = await c.req.parseBody()
+  const formData = await c.req.parseBody();
-  const ssid = formData.ssid as string
+  const ssid = formData.ssid as string;
-  const password = formData.password as string
+  const password = formData.password as string;
 
   // Return the connecting page immediately
-  const response = c.html(<ConnectingPage ssid={ssid} />)
+  const response = c.html(<ConnectingPage ssid={ssid} />);
 
   // Trigger connection in background after a short delay (allows response to be sent)
   setTimeout(async () => {
     try {
-      await $`sudo nmcli device wifi connect ${ssid} password ${password}`
+      await $`sudo nmcli device wifi connect ${ssid} password ${password}`;
-      console.log(`[WiFi] Successfully connected to ${ssid}`)
+      console.log(`[WiFi] Successfully connected to ${ssid}`);
     } catch (error) {
-      console.error(`[WiFi] Failed to connect to ${ssid}:`, error)
+      console.error(`[WiFi] Failed to connect to ${ssid}:`, error);
 
       // Delete the failed connection profile so ap-monitor doesn't try to use it
       try {
-        await $`sudo nmcli connection delete ${ssid}`.nothrow()
+        await $`sudo nmcli connection delete ${ssid}`.nothrow();
-        console.log(`[WiFi] Deleted failed connection profile for ${ssid}`)
+        console.log(`[WiFi] Deleted failed connection profile for ${ssid}`);
       } catch (deleteError) {
-        console.error(`[WiFi] Failed to delete connection profile:`, deleteError)
+        console.error(`[WiFi] Failed to delete connection profile:`, deleteError);
       }
     }
-  }, 1000) // 1 second delay
+  }, 1000); // 1 second delay
 
-  return response
+  return response;
-})
+});
 
-export default { port: 80, fetch: app.fetch }
+export default { port: 80, fetch: app.fetch };
 
-console.log("Server running on http://0.0.0.0:80")
+console.log("Server running on http://0.0.0.0:80");
-console.log("Access via WiFi or AP at http://phone.local")
+console.log("Access via WiFi or AP at http://yellow-phone.local");

src/sip.ts

@@ -1,114 +0,0 @@
-import { log } from "./utils/log.ts"
-import { Signal } from "./utils/signal.ts"
-import { processStdout, processStderr } from "./utils/stdio.ts"
-
-export class Baresip {
-  baresipArgs: string[]
-  process?: Bun.PipedSubprocess
-  callEstablished = new Signal<{ contact: string }>()
-  callReceived = new Signal<{ contact: string }>()
-  hungUp = new Signal()
-  error = new Signal<{ message: string }>()
-  registrationSuccess = new Signal()
-
-  constructor(baresipArgs: string[]) {
-    this.baresipArgs = baresipArgs
-  }
-
-  async connect() {
-    this.process = Bun.spawn(this.baresipArgs, {
-      stdout: "pipe",
-      stderr: "pipe",
-      onExit: (_proc, exitCode, signalCode, error) => {
-        log.debug(`📞 Baresip process exited (code: ${exitCode}, signal: ${signalCode})`)
-        if (error) {
-          log.error("Process error:", error)
-        }
-      },
-    })
-
-    Promise.all([
-      processStdout(this.process, (line) => this.#parseLine(line)),
-      processStderr(this.process),
-    ]).catch((error) => {
-      log.error("Error processing output:", error)
-    })
-  }
-
-  accept() {
-    executeCommand("a")
-  }
-
-  dial(phoneNumber: string) {
-    executeCommand(`d${phoneNumber}`)
-  }
-
-  hangUp() {
-    executeCommand("b")
-  }
-
-  disconnectAll() {
-    this.callEstablished.disconnect()
-    this.callReceived.disconnect()
-    this.hungUp.disconnect()
-    this.registrationSuccess.disconnect()
-  }
-
-  kill() {
-    if (!this.process) throw new Error("Process not started")
-    this.process.kill()
-    this.disconnectAll()
-    this.process = undefined
-  }
-
-  #parseLine(line: string) {
-    log.debug(`📞 Baresip: ${line}`)
-    const callEstablishedMatch = line.match(/Call established: (.+)/)
-    if (callEstablishedMatch) {
-      log.debug(`Call established with "${line}"`)
-      this.callEstablished.emit({ contact: callEstablishedMatch[1]! })
-    }
-
-    const callReceivedMatch = line.match(/Incoming call from: \+\d+ (\S+) -/)
-    if (callReceivedMatch) {
-      log.debug(`Incoming call from "${line}"`)
-      this.callReceived.emit({ contact: callReceivedMatch[1]!?.trim() })
-    }
-
-    const hangUpMatch = line.match(/(.+): session closed/)
-    if (hangUpMatch) {
-      log.debug(`Call hung up with "${line}"`)
-      this.hungUp.emit()
-    }
-
-    const callTerminatedMatch = line.match(/(.+) terminated \(duration: /)
-    if (callTerminatedMatch) {
-      log.debug(`⁉️ NOT HANDLED: Call terminated with "${line}"`)
-    }
-
-    const registrationSuccessMatch = line.match(/\[\d+ bindings?\]/)
-    if (registrationSuccessMatch) {
-      this.registrationSuccess.emit()
-    }
-
-    const registrationFailedMatch = line.match(/reg: sip:\S+ 403 Forbidden/)
-    const socketInUseMatch = line.match(/tcp: sock_bind:/)
-    if (registrationFailedMatch || socketInUseMatch) {
-      log.error(`⁉️ NOT HANDLED: Registration failed with "${line}"`)
-      this.error.emit({ message: line })
-    }
-  }
-}
-
-const executeCommand = async (command: string) => {
-  try {
-    const url = new URL(`/?${command}`, "http://127.0.0.1:8000")
-    const response = await Bun.fetch(url)
-
-    if (!response.ok) {
-      throw new Error(`Error executing command: ${response.statusText}`)
-    }
-  } catch (error) {
-    log.error("Failed to execute command:", error)
-  }
-}

src/test-pins.ts

@@ -1,46 +0,0 @@
-import { GPIO } from "./pins"
-
-console.log(`kill -9 ${process.pid}`)
-
-const gpio = new GPIO({ resetOnClose: true })
-
-// // Blink an LED
-using led = gpio.output(21)
-
-// Read a button
-using inputs = gpio.inputGroup({
-  button: { pin: 20, pull: "up", debounce: 10 },
-  switch: { pin: 16, pull: "up", debounce: 10 }
-})
-
-led.value = inputs.pins.button.value
-
-const iteratorEvents = new Promise(async (resolve) => {
-  for await (const event of inputs.events()) {
-    if (event.pin === "button") {
-      led.value = event.value
-    }
-  }
-})
-
-const switchEvent = new Promise<void>(async (resolve) => {
-  await inputs.pins.switch.waitForValue(0)
-  console.log("Switch pressed!")
-  resolve()
-})
-
-process.on("SIGINT", () => {
-  inputs.close()
-  led.close()
-  process.exit(0)
-})
-
-process.on("SIGTERM", () => {
-  inputs.close()
-  
-  process.exit(0)
-})
-
-await Promise.race([iteratorEvents, switchEvent])
-
-console.log(`👋 Goodbye!`)

src/utils/log.ts

@@ -1,21 +0,0 @@
-let showDebug = true
-let showInfo = true
-let showError = true
-
-export function setLogLevel(level: "debug" | "info" | "error" | "none") {
-  showDebug = level === "debug"
-  showInfo = level === "debug" || level === "info"
-  showError = level !== "none"
-}
-
-export const log = {
-  debug: (...args: any[]) => {
-    if (showDebug) console.debug("DEBUG: ", ...args)
-  },
-  info: (...args: any[]) => {
-    if (showInfo) console.log("INFO: ", ...args)
-  },
-  error: (...args: any[]) => {
-    if (showError) console.error("ERROR: ", ...args)
-  },
-}

src/utils/stdio.ts

@@ -1,41 +0,0 @@
-import { log } from "./log.ts"
-
-export const LineSplitter = () => {
-  let buffer = ""
-  return new TransformStream({
-    transform(chunk, controller) {
-      buffer += chunk
-      const parts = buffer.split(/\n/)
-      const lines = parts.slice(0, -1)
-      buffer = parts.at(-1) || ""
-
-      for (const line of lines) {
-        controller.enqueue(line)
-      }
-    },
-    flush(controller) {
-      if (buffer.length > 0) {
-        controller.enqueue(buffer)
-      }
-    },
-  })
-}
-
-export async function processStdout(
-  process: Bun.ReadableSubprocess,
-  onLine: (line: string) => void
-) {
-  for await (const line of process.stdout
-    .pipeThrough(new TextDecoderStream())
-    .pipeThrough(LineSplitter())) {
-    onLine(line)
-  }
-}
-
-export async function processStderr(process: Bun.ReadableSubprocess, prefix: string = "") {
-  for await (const line of process.stderr
-    .pipeThrough(new TextDecoderStream())
-    .pipeThrough(LineSplitter())) {
-    log.error(`❌ ${prefix}${line}`)
-  }
-}

src/utils/waiting-sounds.ts

@@ -7,13 +7,13 @@ export class WaitingSounds {
   typingPlayback?: Playback
   speakingPlayback?: Playback
 
-  constructor(private player: Player) {}
+  constructor(private player: Player, private streamPlayback: StreamingPlayback) {}
 
-  async start(operatorStream: StreamingPlayback) {
+  async start() {
     if (this.typingPlayback) return // Already playing
 
     this.#startTypingSounds()
-    this.#startSpeakingSounds(operatorStream)
+    this.#startSpeakingSounds()
   }
 
   async #startTypingSounds() {
@@ -35,15 +35,17 @@ export class WaitingSounds {
     })
   }
 
-  async #startSpeakingSounds(operatorStream: StreamingPlayback) {
+  async #startSpeakingSounds() {
     const playedSounds = new Set<string>()
     let dir: SoundDir | undefined
     return new Promise<void>(async (resolve) => {
-      while (operatorStream.bufferEmptyFor < 1500) {
+      // Don't start speaking until the stream playback buffer is empty!
+      while (this.streamPlayback.bufferEmptyFor < 1000) {
         await Bun.sleep(100)
       }
 
       do {
+        this.streamPlayback.bufferEmptyFor
         const lastSoundDir = dir
         const value = Math.random() * 100
         if (lastSoundDir === "body-noises") {