feat(e15): multi-OS release picker — download installers for other platforms

core/data/src/commonMain/kotlin/zed/rainxch/core/data/repository/TweaksRepositoryImpl.kt

@@ -352,6 +352,17 @@ class TweaksRepositoryImpl(
         }
     }
 
+    override fun getShowAllPlatforms(): Flow<Boolean> =
+        preferences.data.map { prefs ->
+            prefs[SHOW_ALL_PLATFORMS_KEY] ?: false
+        }
+
+    override suspend fun setShowAllPlatforms(enabled: Boolean) {
+        preferences.edit { prefs ->
+            prefs[SHOW_ALL_PLATFORMS_KEY] = enabled
+        }
+    }
+
     override fun getBatteryOptimizationPromptDismissed(): Flow<Boolean> =
         preferences.data.map { prefs ->
             prefs[BATTERY_OPT_PROMPT_DISMISSED_KEY] ?: false
@@ -457,6 +468,7 @@ class TweaksRepositoryImpl(
         private val EXTERNAL_IMPORT_BANNER_DISMISSED_AT_KEY = intPreferencesKey("external_import_banner_dismissed_at")
         private val APK_INSPECT_COACHMARK_SHOWN_KEY = booleanPreferencesKey("apk_inspect_coachmark_shown")
         private val CHANNEL_CHIP_COACHMARK_SHOWN_KEY = booleanPreferencesKey("channel_chip_coachmark_shown")
+        private val SHOW_ALL_PLATFORMS_KEY = booleanPreferencesKey("show_all_platforms")
         private val BATTERY_OPT_PROMPT_DISMISSED_KEY = booleanPreferencesKey("battery_opt_prompt_dismissed")
         private val LAST_SEEN_WHATS_NEW_VERSION_CODE_KEY = intPreferencesKey("last_seen_whats_new_version_code")
         private val ANNOUNCEMENTS_DISMISSED_IDS_KEY = stringSetPreferencesKey("announcements_dismissed_ids")

core/domain/src/commonMain/kotlin/zed/rainxch/core/domain/repository/TweaksRepository.kt

@@ -123,6 +123,15 @@ interface TweaksRepository {
 
     suspend fun setChannelChipCoachmarkShown(shown: Boolean)
 
+    /**
+     * When true, the release-assets picker on Details shows installers
+     * for every OS (grouped by platform section). When false (default),
+     * only assets installable on the current platform are listed.
+     */
+    fun getShowAllPlatforms(): Flow<Boolean>
+
+    suspend fun setShowAllPlatforms(enabled: Boolean)
+
     /**
      * One-shot watermark for the battery-optimization prompt on
      * aggressive-OEM ROMs (Oppo / OnePlus / Realme / Xiaomi / vivo /

core/domain/src/commonMain/kotlin/zed/rainxch/core/domain/util/AssetPlatform.kt

@@ -0,0 +1,26 @@
+package zed.rainxch.core.domain.util
+
+import zed.rainxch.core.domain.model.DiscoveryPlatform
+
+/**
+ * Maps a release asset filename to the OS platform it targets, by
+ * extension. Returns `null` for files we can't classify (zip bundles,
+ * sources, sig/sha files, etc.) — callers should drop those from the
+ * cross-platform picker so the list isn't polluted by non-installable
+ * sidecars.
+ */
+fun assetPlatformOf(assetName: String): DiscoveryPlatform? {
+    val lower = assetName.lowercase()
+    return when {
+        lower.endsWith(".apk") -> DiscoveryPlatform.Android
+        lower.endsWith(".exe") || lower.endsWith(".msi") -> DiscoveryPlatform.Windows
+        lower.endsWith(".dmg") || lower.endsWith(".pkg") -> DiscoveryPlatform.Macos
+        lower.endsWith(".deb") ||
+            lower.endsWith(".rpm") ||
+            lower.endsWith(".appimage") ||
+            lower.endsWith(".pkg.tar.zst") ||
+            lower.endsWith(".snap") ||
+            lower.endsWith(".flatpakref") -> DiscoveryPlatform.Linux
+        else -> null
+    }
+}

core/presentation/src/commonMain/composeResources/files/whatsnew/17.json

@@ -12,7 +12,8 @@
         "Silent install via root — Magisk, KernelSU, and APatch users can now install without Shizuku or Dhizuku.",
         "Search in Starred and Favourites — quickly filter long lists by repo name, owner, description, or language.",
         "Self-owned ✓ badge — when you're signed in, repos you own get a verified checkmark on Home and Search cards.",
-        "Hide repository — long-press any repo card on Home or Search to hide it from discovery. The repo stays in your library if you have it installed."
+        "Hide repository — long-press any repo card on Home or Search to hide it from discovery. The repo stays in your library if you have it installed.",
+        "Multi-OS release picker — toggle 'Show all platforms' on the asset picker to grab Android APKs from desktop or Linux .debs from your phone. Other-platform downloads open in your browser to save for transfer."
       ]
     },
     {

core/presentation/src/commonMain/composeResources/values-ar/strings-ar.xml

@@ -1165,4 +1165,12 @@
     <string name="open_on_github">فتح في GitHub</string>
     <string name="mark_as_viewed">وضع علامة مشاهد</string>
     <string name="mark_as_unviewed">إلغاء علامة مشاهد</string>
+    <string name="show_all_platforms_label">إظهار جميع المنصات</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">منصة أخرى — يفتح في المتصفح للحفظ والنقل</string>
+    <string name="section_chip_your_device">جهازك</string>
+    <string name="section_chip_for_transfer">للنقل</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-bn/strings-bn.xml

@@ -1141,4 +1141,12 @@
     <string name="open_on_github">GitHub-এ খুলুন</string>
     <string name="mark_as_viewed">দেখা হিসেবে চিহ্নিত করুন</string>
     <string name="mark_as_unviewed">অদেখা হিসেবে চিহ্নিত করুন</string>
+    <string name="show_all_platforms_label">সব প্ল্যাটফর্ম দেখান</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">অন্য প্ল্যাটফর্ম — ট্রান্সফারের জন্য সংরক্ষণে ব্রাউজারে খুলবে</string>
+    <string name="section_chip_your_device">আপনার ডিভাইস</string>
+    <string name="section_chip_for_transfer">ট্রান্সফারের জন্য</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-es/strings-es.xml

@@ -1113,4 +1113,12 @@
     <string name="open_on_github">Abrir en GitHub</string>
     <string name="mark_as_viewed">Marcar como visto</string>
     <string name="mark_as_unviewed">Marcar como no visto</string>
+    <string name="show_all_platforms_label">Mostrar todas las plataformas</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">Otra plataforma — se abre en el navegador para guardar y transferir</string>
+    <string name="section_chip_your_device">Tu dispositivo</string>
+    <string name="section_chip_for_transfer">Para transferir</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-fr/strings-fr.xml

@@ -1114,4 +1114,12 @@
     <string name="open_on_github">Ouvrir sur GitHub</string>
     <string name="mark_as_viewed">Marquer comme vu</string>
     <string name="mark_as_unviewed">Marquer comme non vu</string>
+    <string name="show_all_platforms_label">Afficher toutes les plateformes</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">Autre plateforme — s\'ouvre dans le navigateur pour enregistrement et transfert</string>
+    <string name="section_chip_your_device">Votre appareil</string>
+    <string name="section_chip_for_transfer">Pour transfert</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-hi/strings-hi.xml

@@ -1152,4 +1152,12 @@
     <string name="open_on_github">GitHub पर खोलें</string>
     <string name="mark_as_viewed">देखा हुआ चिह्नित करें</string>
     <string name="mark_as_unviewed">अनदेखा चिह्नित करें</string>
+    <string name="show_all_platforms_label">सभी प्लेटफ़ॉर्म दिखाएं</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">अन्य प्लेटफ़ॉर्म — ट्रांसफ़र के लिए सहेजने हेतु ब्राउज़र में खुलता है</string>
+    <string name="section_chip_your_device">आपका डिवाइस</string>
+    <string name="section_chip_for_transfer">ट्रांसफ़र के लिए</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-it/strings-it.xml

@@ -1153,4 +1153,12 @@
     <string name="open_on_github">Apri su GitHub</string>
     <string name="mark_as_viewed">Segna come visto</string>
     <string name="mark_as_unviewed">Segna come non visto</string>
+    <string name="show_all_platforms_label">Mostra tutte le piattaforme</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">Altra piattaforma — si apre nel browser per salvare e trasferire</string>
+    <string name="section_chip_your_device">Il tuo dispositivo</string>
+    <string name="section_chip_for_transfer">Da trasferire</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-ja/strings-ja.xml

@@ -1108,4 +1108,12 @@
     <string name="open_on_github">GitHub で開く</string>
     <string name="mark_as_viewed">既読にする</string>
     <string name="mark_as_unviewed">未読にする</string>
+    <string name="show_all_platforms_label">すべてのプラットフォームを表示</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">他のプラットフォーム — ブラウザで開き、転送用に保存します</string>
+    <string name="section_chip_your_device">このデバイス</string>
+    <string name="section_chip_for_transfer">転送用</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-ko/strings-ko.xml

@@ -1143,4 +1143,12 @@
     <string name="open_on_github">GitHub에서 열기</string>
     <string name="mark_as_viewed">본 항목으로 표시</string>
     <string name="mark_as_unviewed">본 항목 해제</string>
+    <string name="show_all_platforms_label">모든 플랫폼 표시</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">다른 플랫폼 — 전송용 저장을 위해 브라우저에서 열립니다</string>
+    <string name="section_chip_your_device">내 기기</string>
+    <string name="section_chip_for_transfer">전송용</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-pl/strings-pl.xml

@@ -1134,4 +1134,12 @@
     <string name="open_on_github">Otwórz w GitHub</string>
     <string name="mark_as_viewed">Oznacz jako obejrzane</string>
     <string name="mark_as_unviewed">Oznacz jako nieobejrzane</string>
+    <string name="show_all_platforms_label">Pokaż wszystkie platformy</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">Inna platforma — otwiera się w przeglądarce, aby zapisać do transferu</string>
+    <string name="section_chip_your_device">Twoje urządzenie</string>
+    <string name="section_chip_for_transfer">Do transferu</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-ru/strings-ru.xml

@@ -1134,4 +1134,12 @@
     <string name="open_on_github">Открыть на GitHub</string>
     <string name="mark_as_viewed">Отметить как просмотренный</string>
     <string name="mark_as_unviewed">Снять отметку</string>
+    <string name="show_all_platforms_label">Показать все платформы</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">Другая платформа — открывается в браузере для сохранения и переноса</string>
+    <string name="section_chip_your_device">Это устройство</string>
+    <string name="section_chip_for_transfer">Для переноса</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-tr/strings-tr.xml

@@ -1150,4 +1150,12 @@
     <string name="open_on_github">GitHub\'da aç</string>
     <string name="mark_as_viewed">Görüldü olarak işaretle</string>
     <string name="mark_as_unviewed">Görülmedi olarak işaretle</string>
+    <string name="show_all_platforms_label">Tüm platformları göster</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">Diğer platform — aktarma için kaydetmek üzere tarayıcıda açılır</string>
+    <string name="section_chip_your_device">Cihazınız</string>
+    <string name="section_chip_for_transfer">Aktarım için</string>
 </resources>

core/presentation/src/commonMain/composeResources/values-zh-rCN/strings-zh-rCN.xml

@@ -1110,4 +1110,12 @@
     <string name="open_on_github">在 GitHub 打开</string>
     <string name="mark_as_viewed">标记为已查看</string>
     <string name="mark_as_unviewed">取消已查看标记</string>
+    <string name="show_all_platforms_label">显示所有平台</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">其他平台 — 在浏览器中打开以保存并转移</string>
+    <string name="section_chip_your_device">你的设备</string>
+    <string name="section_chip_for_transfer">用于转移</string>
 </resources>

core/presentation/src/commonMain/composeResources/values/strings.xml

@@ -775,6 +775,14 @@
     <string name="open_on_github">Open on GitHub</string>
     <string name="mark_as_viewed">Mark as viewed</string>
     <string name="mark_as_unviewed">Mark as unviewed</string>
+    <string name="show_all_platforms_label">Show all platforms</string>
+    <string name="platform_section_android">Android</string>
+    <string name="platform_section_windows">Windows</string>
+    <string name="platform_section_macos">macOS</string>
+    <string name="platform_section_linux">Linux</string>
+    <string name="saved_for_transfer_hint">Other platform — opens in browser to save for transfer</string>
+    <string name="section_chip_your_device">Your device</string>
+    <string name="section_chip_for_transfer">For transfer</string>
     <string name="repository_hidden">Repository hidden</string>
     <string name="undo_hide">Undo</string>
     <string name="hidden_repositories_title">Hidden repositories</string>

feature/details/presentation/src/commonMain/kotlin/zed/rainxch/details/presentation/DetailsAction.kt

@@ -159,4 +159,20 @@ sealed interface DetailsAction {
      * Persists so the coachmark only ever shows once.
      */
     data object OnAcknowledgeChannelChipCoachmark : DetailsAction
+
+    /**
+     * Flip the "Show all platforms" picker setting (persisted globally).
+     * Carries the explicit target value so rapid back-and-forth toggles
+     * don't race against a stale read of the in-memory state.
+     */
+    data class OnToggleShowAllPlatforms(val enabled: Boolean) : DetailsAction
+
+    /**
+     * Download a non-current-platform asset for transfer to another
+     * device. Routes to the user's browser so the file lands in their
+     * normal Downloads folder.
+     */
+    data class OnDownloadForTransfer(
+        val assetUrl: String,
+    ) : DetailsAction
 }

feature/details/presentation/src/commonMain/kotlin/zed/rainxch/details/presentation/DetailsState.kt

@@ -134,6 +134,13 @@ data class DetailsState(
      * `ChannelChip` so users discover the per-app channel toggle.
      */
     val isChannelChipCoachmarkPending: Boolean = false,
+    /**
+     * Mirrors `TweaksRepository.getShowAllPlatforms()`. When true the
+     * release-assets picker lists installers for every OS (grouped by
+     * section); the install button still operates on the current
+     * platform's primary asset.
+     */
+    val showAllPlatforms: Boolean = false,
 ) {
     val filteredReleases: List<GithubRelease>
         get() =

feature/details/presentation/src/commonMain/kotlin/zed/rainxch/details/presentation/DetailsViewModel.kt

@@ -147,6 +147,7 @@ class DetailsViewModel(
                     observeApkInspectCoachmark()
                     observeChannelChipCoachmark()
                     observeCurrentUserForBadge()
+                    observeShowAllPlatforms()
 
                     hasLoadedInitialData = true
                 }
@@ -492,6 +493,29 @@ class DetailsViewModel(
             DetailsAction.OnAcknowledgeChannelChipCoachmark -> {
                 acknowledgeChannelChipCoachmark()
             }
+
+            is DetailsAction.OnToggleShowAllPlatforms -> {
+                viewModelScope.launch {
+                    try {
+                        tweaksRepository.setShowAllPlatforms(action.enabled)
+                    } catch (e: CancellationException) {
+                        throw e
+                    } catch (e: Throwable) {
+                        logger.warn("Toggle show-all-platforms failed: ${e.message}")
+                    }
+                }
+            }
+
+            is DetailsAction.OnDownloadForTransfer -> {
+                // Cross-platform assets land here when the user picks an
+                // installer for a different OS. Browser handles the
+                // actual save-to-Downloads — keeps install plumbing
+                // unchanged and matches existing "open external link"
+                // flows on Details.
+                helper.openUrl(action.assetUrl) { err ->
+                    logger.warn("Open transfer download failed: $err")
+                }
+            }
         }
     }
 
@@ -873,6 +897,14 @@ class DetailsViewModel(
         }
     }
 
+    private fun observeShowAllPlatforms() {
+        viewModelScope.launch {
+            tweaksRepository.getShowAllPlatforms().collect { enabled ->
+                _state.update { it.copy(showAllPlatforms = enabled) }
+            }
+        }
+    }
+
     private fun observeChannelChipCoachmark() {
         viewModelScope.launch {
             val alreadyShown =