fix: add async/await to timer event handlers for sound

Makefile

@@ -1,17 +1,23 @@
 .PHONY: dev build clean install frontend
 
+# Get version from git tag
+VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
+GIT_COMMIT := $(shell git rev-parse --short HEAD 2>/dev/null || echo "unknown")
+BUILD_TIME := $(shell date -u +"%Y-%m-%dT%H:%M:%SZ")
+LDFLAGS := -X 'daily-timer/internal/version.Version=$(VERSION)' -X 'daily-timer/internal/version.GitCommit=$(GIT_COMMIT)' -X 'daily-timer/internal/version.BuildTime=$(BUILD_TIME)'
+
 # Development (fixed ports: Vite 5173, Wails DevServer 34115)
 dev:
 	wails dev -devserver localhost:34115
 
 # Build for macOS
-build:
+build: lint
-	wails build -clean
+	wails build -clean -ldflags "$(LDFLAGS)"
 	@xattr -cr "build/bin/Daily Timer.app" 2>/dev/null || true
 
 # Build for macOS (universal binary)
-build-universal:
+build-universal: lint
-	wails build -clean -platform darwin/universal
+	wails build -clean -platform darwin/universal -ldflags "$(LDFLAGS)"
 	@xattr -cr "build/bin/Daily Timer.app" 2>/dev/null || true
 
 # Install frontend dependencies
@@ -51,21 +57,20 @@ deps:
 init: deps frontend
 	@echo "Project initialized. Run 'make dev' to start development."
 
-# Get version from git tag
-VERSION := $(shell git describe --tags --always --dirty 2>/dev/null || echo "dev")
-
 # Release - build and package
-release:
+release: lint
 	@echo "Building release $(VERSION)..."
-	wails build -clean
+	wails build -clean -ldflags "$(LDFLAGS)"
 	@xattr -cr "build/bin/Daily Timer.app" 2>/dev/null || true
-	@mkdir -p dist
+	@rm -rf dist && mkdir -p dist
 	cd build/bin && zip -r "../../dist/Daily-Timer-$(VERSION)-macos-arm64.zip" "Daily Timer.app"
+	@shasum -a 256 "build/bin/Daily Timer.app/Contents/MacOS/daily-timer" | awk '{print $$1}' > "dist/Daily-Timer-$(VERSION)-macos-arm64.sha256"
 	@echo "Release package: dist/Daily-Timer-$(VERSION)-macos-arm64.zip"
-	@ls -lh dist/*.zip
+	@echo "Checksum: $$(cat dist/Daily-Timer-$(VERSION)-macos-arm64.sha256)"
+	@ls -lh dist/*
 
 # Release for both architectures
-release-all:
+release-all: lint
 	@echo "Building release $(VERSION) for all platforms..."
 	@mkdir -p dist
 	GOOS=darwin GOARCH=arm64 wails build -clean -o daily-timer-arm64
@@ -86,7 +91,7 @@ release-upload:
 		-d '{"tag_name": "$(VERSION)", "name": "$(VERSION)", "body": "Release $(VERSION)"}' \
 		| jq -r '.id'); \
 	echo "Created release ID: $$RELEASE_ID"; \
-	for file in dist/*.zip; do \
+	for file in dist/*; do \
 		filename=$$(basename "$$file"); \
 		echo "Uploading $$filename..."; \
 		curl -s -X POST \

README.md

@@ -15,6 +15,7 @@
 - 💾 **Экспорт** - экспорт данных в JSON или CSV
 - 🔊 **Звуковые уведомления** - настраиваемые звуковые оповещения
 - 🌐 **Локализация** - русский и английский интерфейс
+- 🔄 **Автообновление** - проверка и установка обновлений из приложения
 
 ## Скриншоты
 
@@ -36,6 +37,24 @@ _(Скоро)_
 3. Переместить `Daily Timer.app` в `/Applications/`
 4. Убрать атрибут карантина (см. ниже)
 
+### Автообновление
+
+Приложение поддерживает автоматическое обновление:
+
+1. Открыть **Настройки** → секция "Обновления"
+2. Нажать **Проверить сейчас**
+3. Если доступно обновление → **Скачать и установить**
+4. После установки нажать **Перезапустить**
+
+Приложение автоматически:
+
+- Скачивает новую версию
+- Устанавливает в `/Applications/`
+- Снимает карантин (`xattr -cr`)
+- Перезапускается
+
+**Обнаружение пересборок**: Если версия та же, но бинарник изменился (пересборка) - приложение также предложит обновление.
+
 ### Установка Wails CLI
 
 ```bash
@@ -172,6 +191,7 @@ GITEA_TOKEN=<token> make release-publish
 - [ ] Шаблоны команд
 - [ ] Облачная синхронизация
 - [ ] Поддержка Windows/Linux
+- [x] Автообновление приложения
 
 ## Лицензия
 

frontend/src/App.svelte

@@ -35,6 +35,27 @@
     EventsOn('timer:meeting_warning', handleMeetingWarning)
     EventsOn('timer:meeting_ended', handleMeetingEnded)
     EventsOn('timer:speaker_changed', handleSpeakerChanged)
+    
+    // Warm up AudioContext on first user interaction
+    const warmUpAudio = async () => {
+      const ctx = getAudioContext()
+      if (ctx.state === 'suspended') {
+        await ctx.resume()
+      }
+      // Play silent sound to fully unlock audio
+      const oscillator = ctx.createOscillator()
+      const gainNode = ctx.createGain()
+      oscillator.connect(gainNode)
+      gainNode.connect(ctx.destination)
+      gainNode.gain.value = 0 // Silent
+      oscillator.start()
+      oscillator.stop(ctx.currentTime + 0.001)
+      // Remove listener after first interaction
+      document.removeEventListener('click', warmUpAudio)
+      document.removeEventListener('keydown', warmUpAudio)
+    }
+    document.addEventListener('click', warmUpAudio)
+    document.addEventListener('keydown', warmUpAudio)
   })
 
   async function loadSettings() {
@@ -80,17 +101,17 @@
     timerState = state
   }
 
-  function handleWarning(state) {
+  async function handleWarning(state) {
     timerState = state
     if (settings?.soundEnabled) {
-      playSound('warning')
+      await playSound('warning')
     }
   }
 
-  function handleTimeUp(state) {
+  async function handleTimeUp(state) {
     timerState = state
     if (settings?.soundEnabled) {
-      playSound('timeup')
+      await playSound('timeup')
     }
   }
 
@@ -98,11 +119,11 @@
     timerState = state
   }
 
-  function handleMeetingEnded(state) {
+  async function handleMeetingEnded(state) {
     timerState = state
     meetingActive = false
     if (settings?.soundEnabled) {
-      playSound('meeting_end')
+      await playSound('meeting_end')
     }
   }
 
@@ -141,24 +162,27 @@
     }
   }
 
-  function playSound(name) {
+  async function playSound(name) {
+    // Ensure AudioContext is running (may be suspended after inactivity)
+    const ctx = getAudioContext()
+    if (ctx.state === 'suspended') {
+      await ctx.resume()
+    }
+    
     switch (name) {
       case 'warning':
-        // Two short warning beeps
         playBeep(880, 0.15)
         setTimeout(() => playBeep(880, 0.15), 200)
         break
       case 'timeup':
-        // Descending tone sequence
         playBeep(1200, 0.2)
         setTimeout(() => playBeep(900, 0.2), 250)
         setTimeout(() => playBeep(600, 0.3), 500)
         break
       case 'meeting_end':
-        // Final chime - three notes
+        playBeep(523, 0.2)
-        playBeep(523, 0.2)  // C5
+        setTimeout(() => playBeep(659, 0.2), 200)
-        setTimeout(() => playBeep(659, 0.2), 200)  // E5
+        setTimeout(() => playBeep(784, 0.4), 400)
-        setTimeout(() => playBeep(784, 0.4), 400)  // G5
         break
     }
   }
@@ -335,6 +359,7 @@
     font-size: 13px;
     transition: all 0.2s;
     white-space: nowrap;
+    outline: none;
   }
 
   .nav button:hover {

frontend/src/components/ParticipantList.svelte

@@ -8,10 +8,17 @@
 
   $: allSpeakers = timerState?.allSpeakers || []
   $: currentSpeakerId = timerState?.currentSpeakerId || 0
+  $: currentElapsed = timerState?.speakerElapsed || 0
 
   function handleSkip(speakerId) {
     dispatch('skip', { speakerId })
   }
+
+  function formatTime(seconds) {
+    const mins = Math.floor(seconds / 60)
+    const secs = seconds % 60
+    return `${mins}:${secs.toString().padStart(2, '0')}`
+  }
 </script>
 
 <div class="participant-list">
@@ -23,7 +30,23 @@
         <li class="speaker-item {speaker.status}">
           <span class="order">{speaker.order}</span>
           <span class="name">{speaker.name}</span>
-          <span class="time-limit">{Math.floor(speaker.timeLimit / 60)}:{(speaker.timeLimit % 60).toString().padStart(2, '0')}</span>
+          <span class="time-display">
+            {#if speaker.status === 'done'}
+              <span class="time-spent" class:overtime={speaker.timeSpent > speaker.timeLimit}>
+                {formatTime(speaker.timeSpent)}
+              </span>
+              <span class="time-sep">/</span>
+              <span class="time-limit">{formatTime(speaker.timeLimit)}</span>
+            {:else if speaker.status === 'speaking'}
+              <span class="time-spent" class:overtime={currentElapsed > speaker.timeLimit}>
+                {formatTime(currentElapsed)}
+              </span>
+              <span class="time-sep">/</span>
+              <span class="time-limit">{formatTime(speaker.timeLimit)}</span>
+            {:else}
+              <span class="time-limit">{formatTime(speaker.timeLimit)}</span>
+            {/if}
+          </span>
           {#if speaker.status === 'pending' || speaker.status === 'skipped'}
             <button class="skip-btn" on:click={() => handleSkip(speaker.id)} title="{$t('controls.skip')}">
               ⏭
@@ -129,13 +152,6 @@
     white-space: nowrap;
   }
 
-  .time-limit {
-    font-family: 'SF Mono', 'Menlo', monospace;
-    font-size: 12px;
-    color: #6b7280;
-    flex-shrink: 0;
-  }
-
   .skip-btn {
     margin-left: 8px;
     padding: 4px 8px;
@@ -163,4 +179,29 @@
     text-align: center;
     padding: 24px;
   }
+
+  .time-display {
+    display: flex;
+    align-items: center;
+    gap: 2px;
+    font-family: 'SF Mono', 'Menlo', monospace;
+    font-size: 12px;
+    flex-shrink: 0;
+  }
+
+  .time-spent {
+    color: #4ade80;
+  }
+
+  .time-spent.overtime {
+    color: #ef4444;
+  }
+
+  .time-sep {
+    color: #6b7280;
+  }
+
+  .time-limit {
+    color: #6b7280;
+  }
 </style>

frontend/src/components/Settings.svelte

@@ -1,7 +1,7 @@
 <script>
   import { onMount, createEventDispatcher } from 'svelte'
-  import { GetSettings, UpdateSettings, GetMeeting, UpdateMeeting } from '../../wailsjs/go/app/App'
+  import { GetSettings, UpdateSettings, GetMeeting, UpdateMeeting, GetVersion, CheckForUpdates, DownloadAndInstallUpdate, RestartApp, SelectCustomSound, GetCustomSoundPath, ClearCustomSound } from '../../wailsjs/go/app/App'
-  import { WindowSetSize, ScreenGetAll } from '../../wailsjs/runtime/runtime'
+  import { WindowSetSize, ScreenGetAll, EventsOn, EventsOff } from '../../wailsjs/runtime/runtime'
   import { t, locale, setLocale } from '../lib/i18n'
 
   const dispatch = createEventDispatcher()
@@ -16,6 +16,23 @@
   let windowFullHeight = true
   let audioContext = null
 
+  // Custom sounds state
+  let customSounds = {
+    warning: null,
+    timeup: null,
+    meeting_end: null
+  }
+  let audioElements = {}
+
+  // Update state
+  let currentVersion = 'dev'
+  let updateInfo = null
+  let checkingUpdate = false
+  let downloadingUpdate = false
+  let downloadProgress = 0
+  let updateError = null
+  let updateComplete = false
+
   function getAudioContext() {
     if (!audioContext) {
       audioContext = new (window.AudioContext || window.webkitAudioContext)()
@@ -42,11 +59,17 @@
       oscillator.stop(ctx.currentTime + duration)
     } catch (e) {
       console.error('Failed to play sound:', e)
-      alert('Sound error: ' + e.message)
     }
   }
 
   function testSound(name) {
+    // If custom sound exists, play it
+    if (customSounds[name]) {
+      playCustomSound(name)
+      return
+    }
+    
+    // Otherwise play default beep sounds
     switch (name) {
       case 'warning':
         playBeep(880, 0.15)
@@ -65,9 +88,139 @@
     }
   }
 
+  function playCustomSound(name) {
+    try {
+      if (!audioElements[name]) {
+        audioElements[name] = new Audio('file://' + customSounds[name])
+      }
+      audioElements[name].currentTime = 0
+      audioElements[name].play()
+    } catch (e) {
+      console.error('Failed to play custom sound:', e)
+    }
+  }
+
+  async function loadCustomSounds() {
+    const types = ['warning', 'timeup', 'meeting_end']
+    for (const type of types) {
+      try {
+        const path = await GetCustomSoundPath(type)
+        if (path) {
+          customSounds[type] = path
+          // Pre-create audio element
+          audioElements[type] = new Audio('file://' + path)
+        }
+      } catch (e) {
+        console.error(`Failed to get custom sound for ${type}:`, e)
+      }
+    }
+    customSounds = { ...customSounds } // Trigger reactivity
+  }
+
+  async function handleUploadSound(soundType) {
+    try {
+      const path = await SelectCustomSound(soundType)
+      if (path) {
+        customSounds[soundType] = path
+        // Recreate audio element with new file
+        audioElements[soundType] = new Audio('file://' + path)
+        customSounds = { ...customSounds }
+      }
+    } catch (e) {
+      console.error('Failed to upload sound:', e)
+    }
+  }
+
+  async function handleClearSound(soundType) {
+    try {
+      await ClearCustomSound(soundType)
+      customSounds[soundType] = null
+      delete audioElements[soundType]
+      customSounds = { ...customSounds }
+    } catch (e) {
+      console.error('Failed to clear sound:', e)
+    }
+  }
+
   onMount(async () => {
     await loadData()
+    await loadCustomSounds()
+    
+    // Load version and check for updates
+    try {
+      currentVersion = await GetVersion()
+      checkForUpdates()
+    } catch (e) {
+      console.error('Failed to get version:', e)
+    }
+
+    // Listen for update progress events
+    EventsOn('update:progress', (progress) => {
+      downloadProgress = progress
     })
+    EventsOn('update:complete', () => {
+      downloadingUpdate = false
+      updateComplete = true
+    })
+
+    // Warm up AudioContext on first user interaction (for sound tests)
+    const warmUpAudio = async () => {
+      const ctx = getAudioContext()
+      if (ctx.state === 'suspended') {
+        await ctx.resume()
+      }
+      // Play silent sound to fully unlock audio
+      const oscillator = ctx.createOscillator()
+      const gainNode = ctx.createGain()
+      oscillator.connect(gainNode)
+      gainNode.connect(ctx.destination)
+      gainNode.gain.value = 0 // Silent
+      oscillator.start()
+      oscillator.stop(ctx.currentTime + 0.001)
+      // Remove listener after first interaction
+      document.removeEventListener('click', warmUpAudio)
+    }
+    document.addEventListener('click', warmUpAudio)
+
+    return () => {
+      EventsOff('update:progress')
+      EventsOff('update:complete')
+      document.removeEventListener('click', warmUpAudio)
+    }
+  })
+
+  async function checkForUpdates() {
+    checkingUpdate = true
+    updateError = null
+    updateInfo = null
+    
+    try {
+      updateInfo = await CheckForUpdates()
+    } catch (e) {
+      console.error('Failed to check for updates:', e)
+      updateError = e.message || 'Unknown error'
+    } finally {
+      checkingUpdate = false
+    }
+  }
+
+  async function downloadAndInstall() {
+    downloadingUpdate = true
+    downloadProgress = 0
+    updateError = null
+    
+    try {
+      await DownloadAndInstallUpdate()
+    } catch (e) {
+      console.error('Failed to download update:', e)
+      updateError = e.message || 'Download failed'
+      downloadingUpdate = false
+    }
+  }
+
+  async function restartApp() {
+    await RestartApp()
+  }
 
   async function loadData() {
     loading = true
@@ -183,10 +336,60 @@
         <label for="soundEnabled">{settings.soundEnabled ? $t('settings.soundEnabled') : $t('settings.soundDisabled')}</label>
       </div>
 
-      <div class="sound-test-buttons">
+      <div class="sound-items">
-        <button type="button" class="test-btn" on:click={() => testSound('warning')}>🔔 Test Warning</button>
+        <div class="sound-item">
-        <button type="button" class="test-btn" on:click={() => testSound('timeup')}>⏰ Test Time Up</button>
+          <div class="sound-info">
-        <button type="button" class="test-btn" on:click={() => testSound('meeting_end')}>🏁 Test Meeting End</button>
+            <span class="sound-label">🔔 {$t('settings.testWarning')}</span>
+            {#if customSounds.warning}
+              <span class="sound-status custom">{$t('settings.customSound')}</span>
+            {:else}
+              <span class="sound-status default">{$t('settings.defaultSound')}</span>
+            {/if}
+          </div>
+          <div class="sound-actions">
+            <button type="button" class="test-btn" on:click={() => testSound('warning')}>▶</button>
+            <button type="button" class="upload-btn" on:click={() => handleUploadSound('warning')}>📁</button>
+            {#if customSounds.warning}
+              <button type="button" class="clear-btn" on:click={() => handleClearSound('warning')}>✕</button>
+            {/if}
+          </div>
+        </div>
+
+        <div class="sound-item">
+          <div class="sound-info">
+            <span class="sound-label">⏰ {$t('settings.testTimeUp')}</span>
+            {#if customSounds.timeup}
+              <span class="sound-status custom">{$t('settings.customSound')}</span>
+            {:else}
+              <span class="sound-status default">{$t('settings.defaultSound')}</span>
+            {/if}
+          </div>
+          <div class="sound-actions">
+            <button type="button" class="test-btn" on:click={() => testSound('timeup')}>▶</button>
+            <button type="button" class="upload-btn" on:click={() => handleUploadSound('timeup')}>📁</button>
+            {#if customSounds.timeup}
+              <button type="button" class="clear-btn" on:click={() => handleClearSound('timeup')}>✕</button>
+            {/if}
+          </div>
+        </div>
+
+        <div class="sound-item">
+          <div class="sound-info">
+            <span class="sound-label">🏁 {$t('settings.testMeetingEnd')}</span>
+            {#if customSounds.meeting_end}
+              <span class="sound-status custom">{$t('settings.customSound')}</span>
+            {:else}
+              <span class="sound-status default">{$t('settings.defaultSound')}</span>
+            {/if}
+          </div>
+          <div class="sound-actions">
+            <button type="button" class="test-btn" on:click={() => testSound('meeting_end')}>▶</button>
+            <button type="button" class="upload-btn" on:click={() => handleUploadSound('meeting_end')}>📁</button>
+            {#if customSounds.meeting_end}
+              <button type="button" class="clear-btn" on:click={() => handleClearSound('meeting_end')}>✕</button>
+            {/if}
+          </div>
+        </div>
       </div>
     </section>
 
@@ -204,6 +407,70 @@
       </div>
     </section>
 
+    <section class="updates-section">
+      <h2>{$t('updates.title')}</h2>
+      
+      <div class="version-info">
+        <span class="version-label">{$t('updates.currentVersion')}:</span>
+        <span class="version-value">{currentVersion}</span>
+      </div>
+
+      {#if checkingUpdate}
+        <div class="update-status checking">
+          <span class="spinner"></span>
+          {$t('updates.checkingForUpdates')}
+        </div>
+      {:else if updateError}
+        <div class="update-status error">
+          {$t('updates.error')}: {updateError}
+        </div>
+        <button class="update-btn" on:click={checkForUpdates}>
+          {$t('updates.checkNow')}
+        </button>
+      {:else if updateComplete}
+        <div class="update-status success">
+          {$t('updates.restartRequired')}
+        </div>
+        <div class="update-buttons">
+          <button class="update-btn primary" on:click={restartApp}>
+            {$t('updates.restart')}
+          </button>
+          <button class="update-btn" on:click={() => updateComplete = false}>
+            {$t('updates.later')}
+          </button>
+        </div>
+      {:else if downloadingUpdate}
+        <div class="update-status downloading">
+          {$t('updates.downloading')} {Math.round(downloadProgress * 100)}%
+        </div>
+        <div class="progress-bar">
+          <div class="progress-fill" style="width: {downloadProgress * 100}%"></div>
+        </div>
+      {:else if updateInfo?.available}
+        <div class="update-status available">
+          {#if updateInfo.isRebuild}
+            {$t('updates.rebuildAvailable')}: <strong>{updateInfo.latestVersion}</strong>
+          {:else}
+            {$t('updates.updateAvailable')}: <strong>{updateInfo.latestVersion}</strong>
+          {/if}
+        </div>
+        <button class="update-btn primary" on:click={downloadAndInstall}>
+          {$t('updates.downloadAndInstall')}
+        </button>
+      {:else if updateInfo}
+        <div class="update-status uptodate">
+          ✓ {$t('updates.upToDate')}
+        </div>
+        <button class="update-btn" on:click={checkForUpdates}>
+          {$t('updates.checkNow')}
+        </button>
+      {:else}
+        <button class="update-btn" on:click={checkForUpdates}>
+          {$t('updates.checkNow')}
+        </button>
+      {/if}
+    </section>
+
     <button class="save-btn" on:click={saveSettings} disabled={saving}>
       {saving ? $t('common.loading') : $t('settings.save')}
     </button>
@@ -369,4 +636,204 @@
   .test-btn:active {
     transform: scale(0.97);
   }
+
+  /* Sound items */
+  .sound-items {
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+    margin-top: 12px;
+  }
+
+  .sound-item {
+    display: flex;
+    justify-content: space-between;
+    align-items: center;
+    padding: 10px 12px;
+    background: #1b2636;
+    border: 1px solid #3d4f61;
+    border-radius: 8px;
+  }
+
+  .sound-info {
+    display: flex;
+    align-items: center;
+    gap: 10px;
+  }
+
+  .sound-label {
+    font-size: 14px;
+    color: #e0e0e0;
+  }
+
+  .sound-status {
+    font-size: 11px;
+    padding: 2px 6px;
+    border-radius: 4px;
+  }
+
+  .sound-status.custom {
+    background: #2a4a3a;
+    color: #6ee7b7;
+  }
+
+  .sound-status.default {
+    background: #3d4f61;
+    color: #9ca3af;
+  }
+
+  .sound-actions {
+    display: flex;
+    gap: 6px;
+  }
+
+  .sound-actions button {
+    width: 32px;
+    height: 32px;
+    padding: 0;
+    border: 1px solid #3d4f61;
+    border-radius: 6px;
+    background: #2a3a4e;
+    color: #9ca3af;
+    font-size: 14px;
+    cursor: pointer;
+    transition: all 0.2s;
+    display: flex;
+    align-items: center;
+    justify-content: center;
+  }
+
+  .sound-actions button:hover {
+    border-color: #4a90d9;
+    background: #3a4a5e;
+    color: #e0e0e0;
+  }
+
+  .sound-actions .clear-btn:hover {
+    border-color: #ef4444;
+    background: #4a2a2a;
+    color: #fca5a5;
+  }
+
+  /* Updates section */
+  .updates-section {
+    border: 1px solid #3d4f61;
+  }
+
+  .version-info {
+    display: flex;
+    gap: 8px;
+    margin-bottom: 12px;
+    font-size: 14px;
+  }
+
+  .version-label {
+    color: #9ca3af;
+  }
+
+  .version-value {
+    color: #4a90d9;
+    font-family: monospace;
+  }
+
+  .update-status {
+    padding: 10px;
+    border-radius: 8px;
+    margin-bottom: 12px;
+    font-size: 14px;
+  }
+
+  .update-status.checking {
+    background: #1b2636;
+    color: #9ca3af;
+    display: flex;
+    align-items: center;
+    gap: 8px;
+  }
+
+  .update-status.error {
+    background: #7f1d1d;
+    color: #fca5a5;
+  }
+
+  .update-status.available {
+    background: #164e63;
+    color: #67e8f9;
+  }
+
+  .update-status.uptodate {
+    background: #14532d;
+    color: #86efac;
+  }
+
+  .update-status.downloading {
+    background: #1e3a5f;
+    color: #93c5fd;
+  }
+
+  .update-status.success {
+    background: #14532d;
+    color: #86efac;
+  }
+
+  .spinner {
+    width: 16px;
+    height: 16px;
+    border: 2px solid #4a90d9;
+    border-top-color: transparent;
+    border-radius: 50%;
+    animation: spin 1s linear infinite;
+  }
+
+  @keyframes spin {
+    to { transform: rotate(360deg); }
+  }
+
+  .progress-bar {
+    width: 100%;
+    height: 8px;
+    background: #1b2636;
+    border-radius: 4px;
+    overflow: hidden;
+    margin-bottom: 12px;
+  }
+
+  .progress-fill {
+    height: 100%;
+    background: #4a90d9;
+    transition: width 0.3s ease;
+  }
+
+  .update-buttons {
+    display: flex;
+    gap: 8px;
+  }
+
+  .update-btn {
+    padding: 10px 16px;
+    border: 2px solid #3d4f61;
+    border-radius: 8px;
+    background: #1b2636;
+    color: #9ca3af;
+    font-size: 14px;
+    cursor: pointer;
+    transition: all 0.2s;
+  }
+
+  .update-btn:hover {
+    border-color: #4a90d9;
+    background: #2a3a4e;
+    color: #e0e0e0;
+  }
+
+  .update-btn.primary {
+    background: #4a90d9;
+    border-color: #4a90d9;
+    color: white;
+  }
+
+  .update-btn.primary:hover {
+    background: #3b7dc9;
+    border-color: #3b7dc9;
+  }
 </style>

frontend/src/lib/i18n.js

@@ -94,6 +94,11 @@ export const translations = {
       sound: 'Звуковые уведомления',
       soundEnabled: 'Включены',
       soundDisabled: 'Выключены',
+      testWarning: 'Предупреждение',
+      testTimeUp: 'Время вышло',
+      testMeetingEnd: 'Конец собрания',
+      customSound: 'свой',
+      defaultSound: 'стандартный',
       warningTime: 'Предупреждение за',
       seconds: 'сек',
       defaultSpeakerTime: 'Время на спикера по умолчанию',
@@ -108,6 +113,25 @@ export const translations = {
       windowFullHeight: 'Окно на всю высоту экрана',
     },
 
+    // Updates
+    updates: {
+      title: 'Обновления',
+      currentVersion: 'Текущая версия',
+      checkingForUpdates: 'Проверка обновлений...',
+      updateAvailable: 'Доступно обновление',
+      rebuildAvailable: 'Доступна пересборка',
+      upToDate: 'У вас последняя версия',
+      downloadAndInstall: 'Скачать и установить',
+      downloading: 'Загрузка...',
+      installing: 'Установка...',
+      restartRequired: 'Для завершения обновления требуется перезапуск',
+      restart: 'Перезапустить',
+      later: 'Позже',
+      error: 'Ошибка проверки обновлений',
+      downloadError: 'Ошибка загрузки обновления',
+      checkNow: 'Проверить сейчас',
+    },
+
     // Participant management
     participants: {
       title: 'Управление участниками',
@@ -243,6 +267,11 @@ export const translations = {
       sound: 'Sound Notifications',
       soundEnabled: 'Enabled',
       soundDisabled: 'Disabled',
+      testWarning: 'Warning',
+      testTimeUp: 'Time Up',
+      testMeetingEnd: 'Meeting End',
+      customSound: 'custom',
+      defaultSound: 'default',
       warningTime: 'Warning before',
       seconds: 'sec',
       defaultSpeakerTime: 'Default Speaker Time',
@@ -257,6 +286,25 @@ export const translations = {
       windowFullHeight: 'Full screen height window',
     },
 
+    // Updates
+    updates: {
+      title: 'Updates',
+      currentVersion: 'Current version',
+      checkingForUpdates: 'Checking for updates...',
+      updateAvailable: 'Update available',
+      rebuildAvailable: 'Rebuild available',
+      upToDate: 'You have the latest version',
+      downloadAndInstall: 'Download and install',
+      downloading: 'Downloading...',
+      installing: 'Installing...',
+      restartRequired: 'Restart required to complete the update',
+      restart: 'Restart',
+      later: 'Later',
+      error: 'Error checking for updates',
+      downloadError: 'Error downloading update',
+      checkNow: 'Check now',
+    },
+
     // Participant management
     participants: {
       title: 'Manage Participants',

frontend/wailsjs/go/app/App.d.ts

@@ -1,19 +1,28 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
 import {models} from '../models';
+import {updater} from '../models';
 
 export function AddParticipant(arg1:string,arg2:string,arg3:number):Promise<models.Participant>;
 
+export function CheckForUpdates():Promise<updater.UpdateInfo>;
+
+export function ClearCustomSound(arg1:string):Promise<void>;
+
 export function DeleteAllSessions():Promise<void>;
 
 export function DeleteParticipant(arg1:number):Promise<void>;
 
 export function DeleteSession(arg1:number):Promise<void>;
 
+export function DownloadAndInstallUpdate():Promise<void>;
+
 export function ExportCSV(arg1:string,arg2:string):Promise<string>;
 
 export function ExportData(arg1:string,arg2:string):Promise<string>;
 
+export function GetCustomSoundPath(arg1:string):Promise<string>;
+
 export function GetMeeting():Promise<models.Meeting>;
 
 export function GetParticipants():Promise<Array<models.Participant>>;
@@ -30,6 +39,8 @@ export function GetStatistics(arg1:string,arg2:string):Promise<models.Aggregated
 
 export function GetTimerState():Promise<models.TimerState>;
 
+export function GetVersion():Promise<string>;
+
 export function NextSpeaker():Promise<void>;
 
 export function PauseMeeting():Promise<void>;
@@ -38,8 +49,12 @@ export function RemoveFromQueue(arg1:number):Promise<void>;
 
 export function ReorderParticipants(arg1:Array<number>):Promise<void>;
 
+export function RestartApp():Promise<void>;
+
 export function ResumeMeeting():Promise<void>;
 
+export function SelectCustomSound(arg1:string):Promise<string>;
+
 export function SkipSpeaker():Promise<void>;
 
 export function StartMeeting(arg1:Array<number>,arg2:Record<number, boolean>):Promise<void>;

frontend/wailsjs/go/app/App.js

@@ -6,6 +6,14 @@ export function AddParticipant(arg1, arg2, arg3) {
   return window['go']['app']['App']['AddParticipant'](arg1, arg2, arg3);
 }
 
+export function CheckForUpdates() {
+  return window['go']['app']['App']['CheckForUpdates']();
+}
+
+export function ClearCustomSound(arg1) {
+  return window['go']['app']['App']['ClearCustomSound'](arg1);
+}
+
 export function DeleteAllSessions() {
   return window['go']['app']['App']['DeleteAllSessions']();
 }
@@ -18,6 +26,10 @@ export function DeleteSession(arg1) {
   return window['go']['app']['App']['DeleteSession'](arg1);
 }
 
+export function DownloadAndInstallUpdate() {
+  return window['go']['app']['App']['DownloadAndInstallUpdate']();
+}
+
 export function ExportCSV(arg1, arg2) {
   return window['go']['app']['App']['ExportCSV'](arg1, arg2);
 }
@@ -26,6 +38,10 @@ export function ExportData(arg1, arg2) {
   return window['go']['app']['App']['ExportData'](arg1, arg2);
 }
 
+export function GetCustomSoundPath(arg1) {
+  return window['go']['app']['App']['GetCustomSoundPath'](arg1);
+}
+
 export function GetMeeting() {
   return window['go']['app']['App']['GetMeeting']();
 }
@@ -58,6 +74,10 @@ export function GetTimerState() {
   return window['go']['app']['App']['GetTimerState']();
 }
 
+export function GetVersion() {
+  return window['go']['app']['App']['GetVersion']();
+}
+
 export function NextSpeaker() {
   return window['go']['app']['App']['NextSpeaker']();
 }
@@ -74,10 +94,18 @@ export function ReorderParticipants(arg1) {
   return window['go']['app']['App']['ReorderParticipants'](arg1);
 }
 
+export function RestartApp() {
+  return window['go']['app']['App']['RestartApp']();
+}
+
 export function ResumeMeeting() {
   return window['go']['app']['App']['ResumeMeeting']();
 }
 
+export function SelectCustomSound(arg1) {
+  return window['go']['app']['App']['SelectCustomSound'](arg1);
+}
+
 export function SkipSpeaker() {
   return window['go']['app']['App']['SkipSpeaker']();
 }

frontend/wailsjs/go/models.ts

@@ -351,6 +351,7 @@ export namespace models {
 	    id: number;
 	    name: string;
 	    timeLimit: number;
+	    timeSpent: number;
 	    order: number;
 	    status: string;
 	
@@ -363,6 +364,7 @@ export namespace models {
 	        this.id = source["id"];
 	        this.name = source["name"];
 	        this.timeLimit = source["timeLimit"];
+	        this.timeSpent = source["timeSpent"];
 	        this.order = source["order"];
 	        this.status = source["status"];
 	    }
@@ -432,3 +434,32 @@ export namespace models {
 
 }
 
+export namespace updater {
+	
+	export class UpdateInfo {
+	    available: boolean;
+	    currentVersion: string;
+	    latestVersion: string;
+	    releaseNotes: string;
+	    downloadURL: string;
+	    downloadSize: number;
+	    isRebuild: boolean;
+	
+	    static createFrom(source: any = {}) {
+	        return new UpdateInfo(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	        this.available = source["available"];
+	        this.currentVersion = source["currentVersion"];
+	        this.latestVersion = source["latestVersion"];
+	        this.releaseNotes = source["releaseNotes"];
+	        this.downloadURL = source["downloadURL"];
+	        this.downloadSize = source["downloadSize"];
+	        this.isRebuild = source["isRebuild"];
+	    }
+	}
+
+}
+

internal/app/app.go

@@ -9,8 +9,10 @@ import (
 	"time"
 
 	"daily-timer/internal/models"
+	"daily-timer/internal/services/updater"
 	"daily-timer/internal/storage"
 	"daily-timer/internal/timer"
+	"daily-timer/internal/version"
 
 	"github.com/wailsapp/wails/v2/pkg/runtime"
 )
@@ -21,12 +23,14 @@ type App struct {
 	timer       *timer.Timer
 	session     *models.MeetingSession
 	currentLogs map[uint]*models.ParticipantLog
+	updater     *updater.Updater
 }
 
 func New(store *storage.Storage) *App {
 	return &App{
 		store:       store,
 		currentLogs: make(map[uint]*models.ParticipantLog),
+		updater:     updater.New(),
 	}
 }
 
@@ -479,3 +483,130 @@ func (a *App) GetSoundsDir() string {
 	_ = os.MkdirAll(soundsDir, 0755)
 	return soundsDir
 }
+
+// Updates
+
+func (a *App) GetVersion() string {
+	return version.Version
+}
+
+func (a *App) CheckForUpdates() (*updater.UpdateInfo, error) {
+	return a.updater.CheckForUpdates()
+}
+
+func (a *App) DownloadAndInstallUpdate() error {
+	err := a.updater.DownloadAndInstall(func(progress float64) {
+		runtime.EventsEmit(a.ctx, "update:progress", progress)
+	})
+	if err != nil {
+		return err
+	}
+	runtime.EventsEmit(a.ctx, "update:complete", true)
+	return nil
+}
+
+func (a *App) RestartApp() error {
+	return a.updater.RestartApp()
+}
+
+// Sound Management
+
+func (a *App) getSoundsDir() (string, error) {
+	configDir, err := os.UserConfigDir()
+	if err != nil {
+		return "", err
+	}
+	soundsDir := filepath.Join(configDir, "DailyTimer", "sounds")
+	if err := os.MkdirAll(soundsDir, 0755); err != nil {
+		return "", err
+	}
+	return soundsDir, nil
+}
+
+func (a *App) SelectCustomSound(soundType string) (string, error) {
+	// Validate sound type
+	validTypes := map[string]bool{"warning": true, "timeup": true, "meeting_end": true}
+	if !validTypes[soundType] {
+		return "", fmt.Errorf("invalid sound type: %s", soundType)
+	}
+
+	// Open file dialog
+	selection, err := runtime.OpenFileDialog(a.ctx, runtime.OpenDialogOptions{
+		Title: "Select Sound File",
+		Filters: []runtime.FileFilter{
+			{DisplayName: "Audio Files", Pattern: "*.mp3;*.wav;*.m4a;*.ogg"},
+		},
+	})
+	if err != nil {
+		return "", err
+	}
+	if selection == "" {
+		return "", nil // User cancelled
+	}
+
+	// Get sounds directory
+	soundsDir, err := a.getSoundsDir()
+	if err != nil {
+		return "", err
+	}
+
+	// Determine destination filename
+	ext := filepath.Ext(selection)
+	destPath := filepath.Join(soundsDir, soundType+ext)
+
+	// Copy file
+	src, err := os.Open(selection)
+	if err != nil {
+		return "", err
+	}
+	defer func() { _ = src.Close() }()
+
+	dst, err := os.Create(destPath)
+	if err != nil {
+		return "", err
+	}
+	defer func() { _ = dst.Close() }()
+
+	if _, err := dst.ReadFrom(src); err != nil {
+		return "", err
+	}
+
+	return destPath, nil
+}
+
+func (a *App) GetCustomSoundPath(soundType string) string {
+	soundsDir, err := a.getSoundsDir()
+	if err != nil {
+		return ""
+	}
+
+	// Check for common audio extensions
+	extensions := []string{".mp3", ".wav", ".m4a", ".ogg"}
+	for _, ext := range extensions {
+		path := filepath.Join(soundsDir, soundType+ext)
+		if _, err := os.Stat(path); err == nil {
+			return path
+		}
+	}
+
+	return ""
+}
+
+func (a *App) ClearCustomSound(soundType string) error {
+	soundsDir, err := a.getSoundsDir()
+	if err != nil {
+		return err
+	}
+
+	extensions := []string{".mp3", ".wav", ".m4a", ".ogg"}
+	for _, ext := range extensions {
+		path := filepath.Join(soundsDir, soundType+ext)
+		if _, err := os.Stat(path); err == nil {
+			if err := os.Remove(path); err != nil {
+				return err
+			}
+		}
+	}
+
+	return nil
+}

internal/models/types.go

@@ -33,6 +33,7 @@ type SpeakerInfo struct {
 	ID        uint          `json:"id"`
 	Name      string        `json:"name"`
 	TimeLimit int           `json:"timeLimit"`
+	TimeSpent int           `json:"timeSpent"`
 	Order     int           `json:"order"`
 	Status    SpeakerStatus `json:"status"`
 }

internal/services/updater/updater.go

@@ -0,0 +1,428 @@
+package updater
+
+import (
+	"archive/zip"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"time"
+
+	"daily-timer/internal/version"
+)
+
+const (
+	GiteaAPIURL    = "https://git.movida.biz/api/v1/repos/bell/daily-timer/releases/latest"
+	AppName        = "Daily Timer.app"
+	InstallPath    = "/Applications"
+	DownloadPrefix = "Daily-Timer-"
+)
+
+type Release struct {
+	TagName     string  `json:"tag_name"`
+	Name        string  `json:"name"`
+	Body        string  `json:"body"`
+	PublishedAt string  `json:"published_at"`
+	Assets      []Asset `json:"assets"`
+}
+
+type Asset struct {
+	Name               string `json:"name"`
+	Size               int64  `json:"size"`
+	BrowserDownloadURL string `json:"browser_download_url"`
+}
+
+type UpdateInfo struct {
+	Available      bool   `json:"available"`
+	CurrentVersion string `json:"currentVersion"`
+	LatestVersion  string `json:"latestVersion"`
+	ReleaseNotes   string `json:"releaseNotes"`
+	DownloadURL    string `json:"downloadURL"`
+	DownloadSize   int64  `json:"downloadSize"`
+	IsRebuild      bool   `json:"isRebuild"`
+}
+
+type Updater struct {
+	latestRelease *Release
+	downloadURL   string
+}
+
+func New() *Updater {
+	return &Updater{}
+}
+
+func (u *Updater) CheckForUpdates() (*UpdateInfo, error) {
+	client := &http.Client{Timeout: 10 * time.Second}
+
+	resp, err := client.Get(GiteaAPIURL)
+	if err != nil {
+		return nil, fmt.Errorf("failed to check for updates: %w", err)
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("API returned status %d", resp.StatusCode)
+	}
+
+	var release Release
+	if err := json.NewDecoder(resp.Body).Decode(&release); err != nil {
+		return nil, fmt.Errorf("failed to parse release info: %w", err)
+	}
+
+	u.latestRelease = &release
+
+	// Find macOS arm64 asset
+	var downloadAsset *Asset
+	for i := range release.Assets {
+		if strings.Contains(release.Assets[i].Name, "macos-arm64") && strings.HasSuffix(release.Assets[i].Name, ".zip") {
+			downloadAsset = &release.Assets[i]
+			break
+		}
+	}
+
+	if downloadAsset == nil {
+		return nil, fmt.Errorf("no macOS arm64 asset found")
+	}
+
+	u.downloadURL = downloadAsset.BrowserDownloadURL
+
+	// Find checksum asset
+	var checksumAsset *Asset
+	for i := range release.Assets {
+		if strings.Contains(release.Assets[i].Name, "macos-arm64") && strings.HasSuffix(release.Assets[i].Name, ".sha256") {
+			checksumAsset = &release.Assets[i]
+			break
+		}
+	}
+
+	latestVersion := strings.TrimPrefix(release.TagName, "v")
+	currentVersion := strings.TrimPrefix(version.Version, "v")
+
+	isNewer := isNewerVersion(latestVersion, currentVersion)
+	isRebuild := false
+
+	// Check if same version but different checksum (rebuild)
+	if !isNewer && checksumAsset != nil {
+		remoteChecksum, err := u.downloadChecksum(checksumAsset.BrowserDownloadURL)
+		if err == nil {
+			localChecksum, err := u.calculateBinaryChecksum()
+			if err == nil && remoteChecksum != localChecksum {
+				isRebuild = true
+			}
+		}
+	}
+
+	info := &UpdateInfo{
+		Available:      isNewer || isRebuild,
+		CurrentVersion: version.Version,
+		LatestVersion:  release.TagName,
+		ReleaseNotes:   release.Body,
+		DownloadURL:    downloadAsset.BrowserDownloadURL,
+		DownloadSize:   downloadAsset.Size,
+		IsRebuild:      isRebuild,
+	}
+
+	return info, nil
+}
+
+func (u *Updater) DownloadAndInstall(progressCallback func(float64)) error {
+	if u.downloadURL == "" {
+		return fmt.Errorf("no download URL available, run CheckForUpdates first")
+	}
+
+	// Create temp directory
+	tmpDir, err := os.MkdirTemp("", "daily-timer-update-")
+	if err != nil {
+		return fmt.Errorf("failed to create temp directory: %w", err)
+	}
+	defer func() { _ = os.RemoveAll(tmpDir) }()
+
+	zipPath := filepath.Join(tmpDir, "update.zip")
+
+	// Download ZIP
+	if err := u.downloadFile(zipPath, progressCallback); err != nil {
+		return fmt.Errorf("failed to download update: %w", err)
+	}
+
+	// Extract ZIP
+	extractPath := filepath.Join(tmpDir, "extracted")
+	if err := u.extractZip(zipPath, extractPath); err != nil {
+		return fmt.Errorf("failed to extract update: %w", err)
+	}
+
+	// Find .app in extracted folder
+	appPath := filepath.Join(extractPath, AppName)
+	if _, err := os.Stat(appPath); os.IsNotExist(err) {
+		return fmt.Errorf("app not found in update package")
+	}
+
+	// Remove old app from /Applications
+	destPath := filepath.Join(InstallPath, AppName)
+	if _, err := os.Stat(destPath); err == nil {
+		if err := os.RemoveAll(destPath); err != nil {
+			return fmt.Errorf("failed to remove old app: %w", err)
+		}
+	}
+
+	// Copy new app to /Applications
+	if err := u.copyDir(appPath, destPath); err != nil {
+		return fmt.Errorf("failed to install update: %w", err)
+	}
+
+	// Remove quarantine attribute
+	cmd := exec.Command("xattr", "-cr", destPath)
+	if err := cmd.Run(); err != nil {
+		fmt.Printf("Warning: failed to remove quarantine: %v\n", err)
+	}
+
+	return nil
+}
+
+func (u *Updater) RestartApp() error {
+	destPath := filepath.Join(InstallPath, AppName)
+
+	// Use shell to launch new app after this process exits
+	// The sleep ensures the current app has time to exit
+	script := fmt.Sprintf(`sleep 1 && open "%s"`, destPath)
+	cmd := exec.Command("sh", "-c", script)
+	cmd.Stdout = nil
+	cmd.Stderr = nil
+	cmd.Stdin = nil
+
+	// Detach the process so it continues after we exit
+	if err := cmd.Start(); err != nil {
+		return fmt.Errorf("failed to launch updated app: %w", err)
+	}
+
+	// Release the process so it doesn't become a zombie
+	go func() {
+		_ = cmd.Wait()
+	}()
+
+	// Give the shell time to start
+	time.Sleep(100 * time.Millisecond)
+
+	// Exit current app
+	os.Exit(0)
+	return nil
+}
+
+func (u *Updater) downloadFile(destPath string, progressCallback func(float64)) error {
+	resp, err := http.Get(u.downloadURL)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	out, err := os.Create(destPath)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = out.Close() }()
+
+	totalSize := resp.ContentLength
+	var downloaded int64 = 0
+
+	buf := make([]byte, 32*1024)
+	for {
+		n, err := resp.Body.Read(buf)
+		if n > 0 {
+			if _, writeErr := out.Write(buf[:n]); writeErr != nil {
+				return writeErr
+			}
+			downloaded += int64(n)
+			if progressCallback != nil && totalSize > 0 {
+				progressCallback(float64(downloaded) / float64(totalSize))
+			}
+		}
+		if err == io.EOF {
+			break
+		}
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (u *Updater) extractZip(zipPath, destPath string) error {
+	r, err := zip.OpenReader(zipPath)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = r.Close() }()
+
+	if err := os.MkdirAll(destPath, 0755); err != nil {
+		return err
+	}
+
+	for _, f := range r.File {
+		fpath := filepath.Join(destPath, f.Name)
+
+		// Prevent ZipSlip vulnerability
+		if !strings.HasPrefix(fpath, filepath.Clean(destPath)+string(os.PathSeparator)) {
+			return fmt.Errorf("illegal file path: %s", fpath)
+		}
+
+		if f.FileInfo().IsDir() {
+			_ = os.MkdirAll(fpath, f.Mode())
+			continue
+		}
+
+		if err := os.MkdirAll(filepath.Dir(fpath), 0755); err != nil {
+			return err
+		}
+
+		outFile, err := os.OpenFile(fpath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, f.Mode())
+		if err != nil {
+			return err
+		}
+
+		rc, err := f.Open()
+		if err != nil {
+			_ = outFile.Close()
+			return err
+		}
+
+		_, err = io.Copy(outFile, rc)
+		_ = outFile.Close()
+		_ = rc.Close()
+
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
+
+func (u *Updater) copyDir(src, dst string) error {
+	return filepath.Walk(src, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		relPath, err := filepath.Rel(src, path)
+		if err != nil {
+			return err
+		}
+
+		dstPath := filepath.Join(dst, relPath)
+
+		if info.IsDir() {
+			return os.MkdirAll(dstPath, info.Mode())
+		}
+
+		// Handle symlinks
+		if info.Mode()&os.ModeSymlink != 0 {
+			link, err := os.Readlink(path)
+			if err != nil {
+				return err
+			}
+			return os.Symlink(link, dstPath)
+		}
+
+		srcFile, err := os.Open(path)
+		if err != nil {
+			return err
+		}
+		defer func() { _ = srcFile.Close() }()
+
+		dstFile, err := os.OpenFile(dstPath, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, info.Mode())
+		if err != nil {
+			return err
+		}
+		defer func() { _ = dstFile.Close() }()
+
+		_, err = io.Copy(dstFile, srcFile)
+		return err
+	})
+}
+
+// downloadChecksum fetches the remote SHA256 checksum file
+func (u *Updater) downloadChecksum(url string) (string, error) {
+	client := &http.Client{Timeout: 10 * time.Second}
+	resp, err := client.Get(url)
+	if err != nil {
+		return "", err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	if resp.StatusCode != http.StatusOK {
+		return "", fmt.Errorf("failed to download checksum: status %d", resp.StatusCode)
+	}
+
+	data, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return "", err
+	}
+
+	return strings.TrimSpace(string(data)), nil
+}
+
+// calculateBinaryChecksum calculates SHA256 of the current running binary
+func (u *Updater) calculateBinaryChecksum() (string, error) {
+	execPath, err := os.Executable()
+	if err != nil {
+		return "", err
+	}
+
+	// Resolve symlinks to get actual binary path
+	execPath, err = filepath.EvalSymlinks(execPath)
+	if err != nil {
+		return "", err
+	}
+
+	file, err := os.Open(execPath)
+	if err != nil {
+		return "", err
+	}
+	defer func() { _ = file.Close() }()
+
+	hasher := sha256.New()
+	if _, err := io.Copy(hasher, file); err != nil {
+		return "", err
+	}
+
+	return hex.EncodeToString(hasher.Sum(nil)), nil
+}
+
+// isNewerVersion compares semver-like versions (e.g., "0.1.0" vs "0.2.0")
+func isNewerVersion(latest, current string) bool {
+	if current == "dev" || current == "unknown" {
+		return true
+	}
+
+	latest = strings.TrimPrefix(latest, "v")
+	current = strings.TrimPrefix(current, "v")
+
+	// Handle dirty versions (e.g., "0.1.0-dirty" or "0.1.0-3-g1234567")
+	if strings.Contains(current, "-") {
+		parts := strings.Split(current, "-")
+		current = parts[0]
+	}
+
+	latestParts := strings.Split(latest, ".")
+	currentParts := strings.Split(current, ".")
+
+	for i := 0; i < len(latestParts) && i < len(currentParts); i++ {
+		var l, c int
+		_, _ = fmt.Sscanf(latestParts[i], "%d", &l)
+		_, _ = fmt.Sscanf(currentParts[i], "%d", &c)
+
+		if l > c {
+			return true
+		} else if l < c {
+			return false
+		}
+	}
+
+	return len(latestParts) > len(currentParts)
+}

internal/timer/timer.go

@@ -118,12 +118,14 @@ func (t *Timer) startNextSpeaker(now time.Time) {
 		return
 	}
 
-	// Mark previous speaker as done (only if they were speaking, not skipped)
+	// Mark previous speaker as done and save their time spent
 	if t.currentSpeakerID != 0 {
+		timeSpent := int(now.Sub(t.speakerStartTime).Seconds())
 		for i := range t.allSpeakers {
 			if t.allSpeakers[i].ID == t.currentSpeakerID {
 				if t.allSpeakers[i].Status == models.SpeakerStatusSpeaking {
 					t.allSpeakers[i].Status = models.SpeakerStatusDone
+					t.allSpeakers[i].TimeSpent = timeSpent
 				}
 				break
 			}
@@ -299,9 +301,17 @@ func (t *Timer) Stop() {
 		t.mu.Unlock()
 		return
 	}
-	// Mark current speaker as done before stopping
+	// Mark current speaker as done and save their time spent
 	if t.currentSpeakerID != 0 {
-		t.updateSpeakerStatus(t.currentSpeakerID, models.SpeakerStatusDone)
+		now := time.Now()
+		timeSpent := int(now.Sub(t.speakerStartTime).Seconds())
+		for i := range t.allSpeakers {
+			if t.allSpeakers[i].ID == t.currentSpeakerID {
+				t.allSpeakers[i].Status = models.SpeakerStatusDone
+				t.allSpeakers[i].TimeSpent = timeSpent
+				break
+			}
+		}
 	}
 	t.running = false
 	t.paused = false

internal/version/version.go

@@ -0,0 +1,10 @@
+package version
+
+// Version is set at build time via ldflags
+var Version = "dev"
+
+// GitCommit is set at build time via ldflags
+var GitCommit = "unknown"
+
+// BuildTime is set at build time via ldflags
+var BuildTime = "unknown"

wails.json

@@ -13,7 +13,7 @@
   "info": {
     "companyName": "Movida.Biz",
     "productName": "Daily Timer",
-    "productVersion": "1.0.0",
+    "productVersion": "0.1.0",
     "comments": "Meeting timer with participant time tracking",
     "copyright": "Copyright © 2026 Movida.Biz"
   }