I like where we are now

.claude/settings.local.json

@@ -11,7 +11,9 @@
       "Bash(JAVA_HOME=/nix/store/3xf2cjni3xqn10xnsa0cyvjmnd8sqg7b-openjdk-17.0.18+8 jar tf:*)",
       "Bash(unzip:*)",
       "WebFetch(domain:raw.githubusercontent.com)",
-      "Bash(export TERM=dumb:*)"
+      "Bash(export TERM=dumb:*)",
+      "Bash(grep:*)",
+      "Bash(jar tf:*)"
     ]
   }
 }

CLAUDE.md

@@ -21,7 +21,7 @@ Fluffytrix is an Android Matrix chat client with a Discord-like UI. Built with K
 - **Package**: `com.example.fluffytrix`
 - **Build system**: Gradle with Kotlin DSL, version catalog at `gradle/libs.versions.toml`
 - **AGP**: 9.0.1
-- **Java compatibility**: 11 (configured in `app/build.gradle.kts`)
+- **Java compatibility**: 17 (configured in `app/build.gradle.kts`)
 - Single module (`:app`)
 
 ## Key Files
@@ -36,5 +36,5 @@ Fluffytrix is an Android Matrix chat client with a Discord-like UI. Built with K
 - Discord-like layout: space sidebar → channel list → message area → member list
 - Static channel ordering (never auto-sort by recency)
 - Material You (Material 3 dynamic colors) theming
-- Trixnity SDK for Matrix protocol
+- Matrix Rust SDK (`org.matrix.rustcomponents:sdk-android`) for Matrix protocol
 - Jetpack Compose for UI

app/build.gradle.kts

@@ -22,9 +22,6 @@ android {
 
     buildTypes {
         debug {
-            // Compose is extremely slow in unoptimized debug builds.
-            // R8 with isDebuggable keeps debuggability but strips the massive
-            // material-icons-extended library and optimizes Compose codegen.
             isMinifyEnabled = true
             isShrinkResources = true
             isDebuggable = true
@@ -85,20 +82,11 @@ dependencies {
     implementation(libs.coroutines.core)
     implementation(libs.coroutines.android)
 
-    // Trixnity
+    // Matrix Rust SDK
-    implementation(libs.trixnity.client) {
+    implementation(libs.matrix.rust.sdk)
-        exclude(group = "net.folivo", module = "trixnity-olm-jvm")
-    }
-    implementation(libs.trixnity.clientserverapi.client) {
-        exclude(group = "net.folivo", module = "trixnity-olm-jvm")
-    }
-    implementation(libs.trixnity.olm)
-    implementation(libs.trixnity.client.repository.room) {
-        exclude(group = "net.folivo", module = "trixnity-olm-jvm")
-    }
 
-    // Ktor engine for Trixnity
+    // Kotlinx Serialization
-    implementation(libs.ktor.client.okhttp)
+    implementation(libs.kotlinx.serialization.json)
 
     // Coil (image loading)
     implementation(libs.coil.compose)

app/proguard-rules.pro

@@ -17,13 +17,17 @@
     kotlinx.serialization.KSerializer serializer(...);
 }
 
-# Trixnity — keep all SDK classes (uses reflection/serialization heavily)
+# Matrix Rust SDK (native JNI bindings)
--keep class net.folivo.trixnity.** { *; }
+-keep class org.matrix.rustcomponents.sdk.** { *; }
--dontwarn net.folivo.trixnity.**
+-keep class uniffi.** { *; }
 
-# Ktor
+# JNA (required by Matrix Rust SDK)
--keep class io.ktor.** { *; }
+-keep class com.sun.jna.** { *; }
--dontwarn io.ktor.**
+-keep class * implements com.sun.jna.** { *; }
+-dontwarn java.awt.Component
+-dontwarn java.awt.GraphicsEnvironment
+-dontwarn java.awt.HeadlessException
+-dontwarn java.awt.Window
 
 # OkHttp
 -dontwarn okhttp3.**
@@ -35,11 +39,6 @@
 # Coil
 -keep class coil3.** { *; }
 
-# JNA (used by Trixnity OLM bindings)
--keep class com.sun.jna.** { *; }
--keep class * implements com.sun.jna.** { *; }
--dontwarn com.sun.jna.**
-
 # Media3 / ExoPlayer
 -keep class androidx.media3.** { *; }
 -dontwarn androidx.media3.**
@@ -48,6 +47,3 @@
 -keep class com.mikepenz.markdown.** { *; }
 -keep class dev.snipme.highlights.** { *; }
 -dontwarn dev.snipme.highlights.**
-
-# Olm native library
--keep class org.matrix.olm.** { *; }

app/src/main/java/com/example/fluffytrix/FluffytrixApplication.kt

@@ -31,7 +31,8 @@ class FluffytrixApplication : Application(), SingletonImageLoader.Factory {
         val okHttpClient = OkHttpClient.Builder()
             .addInterceptor { chain ->
                 val request = chain.request()
-                val token = authRepository.getAccessToken()
+                val client = authRepository.getClient()
+                val token = try { client?.session()?.accessToken } catch (_: Exception) { null }
                 if (token != null && request.url.encodedPath.contains("/_matrix/")) {
                     chain.proceed(
                         request.newBuilder()

app/src/main/java/com/example/fluffytrix/data/local/PreferencesManager.kt

@@ -18,9 +18,12 @@ class PreferencesManager(private val context: Context) {
 
     companion object {
         private val KEY_ACCESS_TOKEN = stringPreferencesKey("access_token")
+        private val KEY_REFRESH_TOKEN = stringPreferencesKey("refresh_token")
         private val KEY_USER_ID = stringPreferencesKey("user_id")
         private val KEY_DEVICE_ID = stringPreferencesKey("device_id")
         private val KEY_HOMESERVER_URL = stringPreferencesKey("homeserver_url")
+        private val KEY_OIDC_DATA = stringPreferencesKey("oidc_data")
+        private val KEY_SLIDING_SYNC_VERSION = stringPreferencesKey("sliding_sync_version")
         private val KEY_USERNAME = stringPreferencesKey("username")
         private val KEY_PASSWORD = stringPreferencesKey("password")
         private val KEY_IS_LOGGED_IN = booleanPreferencesKey("is_logged_in")
@@ -52,18 +55,31 @@ class PreferencesManager(private val context: Context) {
     }
 
     suspend fun saveSession(
+        accessToken: String,
+        refreshToken: String?,
         userId: String,
         deviceId: String,
         homeserverUrl: String,
+        oidcData: String?,
+        slidingSyncVersion: String,
     ) {
         context.dataStore.edit { prefs ->
+            prefs[KEY_ACCESS_TOKEN] = accessToken
+            if (refreshToken != null) prefs[KEY_REFRESH_TOKEN] = refreshToken
             prefs[KEY_USER_ID] = userId
             prefs[KEY_DEVICE_ID] = deviceId
             prefs[KEY_HOMESERVER_URL] = homeserverUrl
+            if (oidcData != null) prefs[KEY_OIDC_DATA] = oidcData
+            prefs[KEY_SLIDING_SYNC_VERSION] = slidingSyncVersion
             prefs[KEY_IS_LOGGED_IN] = true
         }
     }
 
+    val refreshToken: Flow<String?> = context.dataStore.data.map { prefs -> prefs[KEY_REFRESH_TOKEN] }
+    val deviceId: Flow<String?> = context.dataStore.data.map { prefs -> prefs[KEY_DEVICE_ID] }
+    val oidcData: Flow<String?> = context.dataStore.data.map { prefs -> prefs[KEY_OIDC_DATA] }
+    val slidingSyncVersion: Flow<String?> = context.dataStore.data.map { prefs -> prefs[KEY_SLIDING_SYNC_VERSION] }
+
     val channelOrder: Flow<Map<String, List<String>>> = context.dataStore.data.map { prefs ->
         val raw = prefs[KEY_CHANNEL_ORDER] ?: return@map emptyMap()
         try {

app/src/main/java/com/example/fluffytrix/data/repository/AuthRepository.kt

@@ -1,64 +1,91 @@
 package com.example.fluffytrix.data.repository
 
 import android.content.Context
-import androidx.room.Room
 import com.example.fluffytrix.data.local.PreferencesManager
-import io.ktor.http.Url
 import kotlinx.coroutines.flow.firstOrNull
-import net.folivo.trixnity.client.MatrixClient
+import org.matrix.rustcomponents.sdk.Client
-import net.folivo.trixnity.client.fromStore
+import org.matrix.rustcomponents.sdk.ClientBuilder
-import net.folivo.trixnity.client.loginWithPassword
+import org.matrix.rustcomponents.sdk.Session
-import net.folivo.trixnity.client.media.createInMemoryMediaStoreModule
+import org.matrix.rustcomponents.sdk.SlidingSyncVersion
-import net.folivo.trixnity.client.store.AccountStore
+import org.matrix.rustcomponents.sdk.SlidingSyncVersionBuilder
-import net.folivo.trixnity.client.store.repository.room.TrixnityRoomDatabase
+import org.matrix.rustcomponents.sdk.SyncService
-import net.folivo.trixnity.client.store.repository.room.createRoomRepositoriesModule
+import java.io.File
-import net.folivo.trixnity.clientserverapi.model.authentication.IdentifierType
 
 class AuthRepository(
     private val preferencesManager: PreferencesManager,
     private val context: Context,
 ) {
-    private var matrixClient: MatrixClient? = null
+    private var matrixClient: Client? = null
-    private var accessToken: String? = null
+    private var syncService: SyncService? = null
 
-    private fun createDatabaseBuilder() =
+    suspend fun getOrStartSync(): SyncService? {
-        Room.databaseBuilder(context, TrixnityRoomDatabase::class.java, "trixnity")
+        syncService?.let { return it }
-            .fallbackToDestructiveMigration(false)
+        val client = matrixClient ?: run {
+            android.util.Log.e("AuthRepo", "getOrStartSync: no client!")
+            return null
+        }
+        return try {
+            android.util.Log.d("AuthRepo", "Building sync service...")
+            val ss = client.syncService().finish()
+            android.util.Log.d("AuthRepo", "Starting sync service...")
+            ss.start()
+            android.util.Log.d("AuthRepo", "Sync service started")
+            syncService = ss
+            ss
+        } catch (e: Exception) {
+            android.util.Log.e("AuthRepo", "Failed to start sync", e)
+            null
+        }
+    }
+
+    fun getSyncService(): SyncService? = syncService
+
+    private fun sessionDataPath(): String {
+        val dir = File(context.filesDir, "matrix_session_data")
+        dir.mkdirs()
+        return dir.absolutePath
+    }
+
+    private fun sessionCachePath(): String {
+        val dir = File(context.cacheDir, "matrix_session_cache")
+        dir.mkdirs()
+        return dir.absolutePath
+    }
 
     suspend fun login(
         homeserverUrl: String,
         username: String,
         password: String,
-    ): Result<MatrixClient> {
+    ): Result<Client> {
         val normalizedUrl = homeserverUrl.let {
             if (!it.startsWith("http")) "https://$it" else it
         }
-        val baseUrl = Url(normalizedUrl)
 
-        val result = MatrixClient.loginWithPassword(
+        return try {
-            baseUrl = baseUrl,
+            val client = ClientBuilder()
-            identifier = IdentifierType.User(username),
+                .sessionPaths(sessionDataPath(), sessionCachePath())
-            password = password,
+                .serverNameOrHomeserverUrl(normalizedUrl)
-            initialDeviceDisplayName = "Fluffytrix Android",
+                .slidingSyncVersionBuilder(SlidingSyncVersionBuilder.DISCOVER_NATIVE)
-            repositoriesModule = createRoomRepositoriesModule(createDatabaseBuilder()),
+                .build()
-            mediaStoreModule = createInMemoryMediaStoreModule(),
+
-        )
+            client.login(username, password, "Fluffytrix Android", null)
 
-        result.onSuccess { client ->
             matrixClient = client
-            try {
+            val session = client.session()
-                val accountStore = client.di.get<AccountStore>()
-                accessToken = accountStore.getAccount()?.accessToken
-            } catch (_: Exception) { }
             preferencesManager.saveSession(
-                userId = client.userId.full,
+                accessToken = session.accessToken,
-                deviceId = client.deviceId,
+                refreshToken = session.refreshToken,
-                homeserverUrl = homeserverUrl,
+                userId = session.userId,
+                deviceId = session.deviceId,
+                homeserverUrl = session.homeserverUrl,
+                oidcData = session.oidcData,
+                slidingSyncVersion = session.slidingSyncVersion.name,
             )
-            client.startSync()
-        }
 
-        return result
+            Result.success(client)
+        } catch (e: Exception) {
+            Result.failure(e)
+        }
     }
 
     suspend fun restoreSession(): Boolean {
@@ -67,40 +94,58 @@ class AuthRepository(
         val isLoggedIn = preferencesManager.isLoggedIn.firstOrNull() ?: false
         if (!isLoggedIn) return false
 
-        return try {
+        val accessToken = preferencesManager.accessToken.firstOrNull() ?: return false
-            val client = MatrixClient.fromStore(
+        val userId = preferencesManager.userId.firstOrNull() ?: return false
-                repositoriesModule = createRoomRepositoriesModule(createDatabaseBuilder()),
+        val deviceId = preferencesManager.deviceId.firstOrNull() ?: return false
-                mediaStoreModule = createInMemoryMediaStoreModule(),
+        val homeserverUrl = preferencesManager.homeserverUrl.firstOrNull() ?: return false
-            ).getOrNull()
+        val refreshToken = preferencesManager.refreshToken.firstOrNull()
+        val oidcData = preferencesManager.oidcData.firstOrNull()
+        val slidingSyncVersionStr = preferencesManager.slidingSyncVersion.firstOrNull() ?: "NATIVE"
 
-            if (client != null) {
+        return try {
-                matrixClient = client
+            val client = ClientBuilder()
-                try {
+                .sessionPaths(sessionDataPath(), sessionCachePath())
-                    val accountStore = client.di.get<AccountStore>()
+                .homeserverUrl(homeserverUrl)
-                    accessToken = accountStore.getAccount()?.accessToken
+                .slidingSyncVersionBuilder(SlidingSyncVersionBuilder.DISCOVER_NATIVE)
-                } catch (_: Exception) { }
+                .build()
-                client.startSync()
+
-                true
+            val slidingSyncVersion = try {
-            } else {
+                SlidingSyncVersion.valueOf(slidingSyncVersionStr)
-                // Store was empty or corrupt — clear saved state
+            } catch (_: Exception) { SlidingSyncVersion.NATIVE }
-                preferencesManager.clearSession()
+
-                false
+            client.restoreSession(Session(
-            }
+                accessToken = accessToken,
-        } catch (_: Exception) {
+                refreshToken = refreshToken,
+                userId = userId,
+                deviceId = deviceId,
+                homeserverUrl = homeserverUrl,
+                oidcData = oidcData,
+                slidingSyncVersion = slidingSyncVersion,
+            ))
+
+            android.util.Log.d("AuthRepo", "restoreSession: success, userId=${client.userId()}")
+            matrixClient = client
+            true
+        } catch (e: Exception) {
+            android.util.Log.e("AuthRepo", "restoreSession failed", e)
             preferencesManager.clearSession()
             false
         }
     }
 
-    fun getClient(): MatrixClient? = matrixClient
+    fun getClient(): Client? = matrixClient
-    fun getAccessToken(): String? = accessToken
-    fun getBaseUrl(): String? = matrixClient?.baseUrl?.toString()?.trimEnd('/')
 
     suspend fun logout() {
-        matrixClient?.logout()
+        try {
-        matrixClient?.close()
+            syncService?.stop()
+        } catch (_: Exception) { }
+        syncService = null
+        try {
+            matrixClient?.logout()
+        } catch (_: Exception) { }
         matrixClient = null
-        accessToken = null
         preferencesManager.clearSession()
+        File(sessionDataPath()).deleteRecursively()
+        File(sessionCachePath()).deleteRecursively()
     }
 }

app/src/main/java/com/example/fluffytrix/ui/screens/login/LoginViewModel.kt

@@ -34,7 +34,7 @@ class LoginViewModel(
                 password = password.value,
             )
             _authState.value = result.fold(
-                onSuccess = { AuthState.Success(it.userId.full) },
+                onSuccess = { AuthState.Success(it.userId()) },
                 onFailure = { AuthState.Error(it.message ?: "Login failed") },
             )
         }

app/src/main/java/com/example/fluffytrix/ui/screens/main/MainScreen.kt

@@ -36,6 +36,7 @@ fun MainScreen(
     val members by viewModel.members.collectAsState()
     val channelName by viewModel.channelName.collectAsState()
     val isReorderMode by viewModel.isReorderMode.collectAsState()
+    val homeUnreadStatus by viewModel.homeUnreadStatus.collectAsState()
 
     Scaffold { padding ->
         Box(modifier = Modifier.fillMaxSize()) {
@@ -44,7 +45,9 @@ fun MainScreen(
                 SpaceList(
                     spaces = spaces,
                     selectedSpace = selectedSpace,
+                    homeUnreadStatus = homeUnreadStatus,
                     onSpaceClick = { viewModel.selectSpace(it) },
+                    onHomeClick = { viewModel.selectHome() },
                     onToggleChannelList = { viewModel.toggleChannelList() },
                     contentPadding = padding,
                 )
@@ -56,6 +59,7 @@ fun MainScreen(
                     onToggleMemberList = { viewModel.toggleMemberList() },
                     onSendMessage = { viewModel.sendMessage(it) },
                     onSendFile = { viewModel.sendFile(it) },
+                    onLoadMore = { viewModel.loadMoreMessages() },
                     modifier = Modifier.weight(1f),
                     contentPadding = padding,
                 )

app/src/main/java/com/example/fluffytrix/ui/screens/main/components/ChannelList.kt

@@ -52,14 +52,13 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.zIndex
 import com.example.fluffytrix.ui.screens.main.ChannelItem
 import com.example.fluffytrix.ui.screens.main.UnreadStatus
-import net.folivo.trixnity.core.model.RoomId
 import kotlin.math.roundToInt
 
 @Composable
 fun ChannelList(
     channels: List<ChannelItem>,
-    selectedChannel: RoomId?,
+    selectedChannel: String?,
-    onChannelClick: (RoomId) -> Unit,
+    onChannelClick: (String) -> Unit,
     onLogout: () -> Unit,
     contentPadding: PaddingValues,
     isReorderMode: Boolean = false,
@@ -136,7 +135,7 @@ fun ChannelList(
             contentPadding = PaddingValues(horizontal = 8.dp, vertical = 4.dp),
             verticalArrangement = Arrangement.spacedBy(2.dp),
         ) {
-            itemsIndexed(channels, key = { _, ch -> ch.id.full }) { index, channel ->
+            itemsIndexed(channels, key = { _, ch -> ch.id }) { index, channel ->
                 val isSelected = channel.id == selectedChannel
                 val isDragging = draggingIndex == index
                 val elevation by animateDpAsState(if (isDragging) 8.dp else 0.dp, label = "elevation")

app/src/main/java/com/example/fluffytrix/ui/screens/main/components/MemberList.kt

@@ -52,7 +52,7 @@ fun MemberList(
             contentPadding = PaddingValues(horizontal = 8.dp),
             verticalArrangement = Arrangement.spacedBy(2.dp),
         ) {
-            items(members, key = { it.userId.full }) { member ->
+            items(members, key = { it.userId }) { member ->
                 Row(
                     modifier = Modifier
                         .fillMaxWidth()

app/src/main/java/com/example/fluffytrix/ui/screens/main/components/MessageTimeline.kt

@@ -65,7 +65,6 @@ import kotlinx.coroutines.launch
 import androidx.compose.ui.graphics.graphicsLayer
 import androidx.compose.ui.input.pointer.pointerInput
 import androidx.compose.ui.platform.LocalContext
-import androidx.compose.ui.platform.LocalUriHandler
 import androidx.compose.ui.viewinterop.AndroidView
 import androidx.compose.ui.window.Dialog
 import androidx.compose.ui.window.DialogProperties
@@ -79,7 +78,6 @@ import org.koin.compose.koinInject
 import coil3.compose.AsyncImage
 import com.example.fluffytrix.ui.screens.main.MessageContent
 import com.example.fluffytrix.ui.screens.main.MessageItem
-import net.folivo.trixnity.core.model.RoomId
 import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.Locale
@@ -114,12 +112,13 @@ private fun formatTimestamp(timestamp: Long): String {
 
 @Composable
 fun MessageTimeline(
-    selectedChannel: RoomId?,
+    selectedChannel: String?,
     channelName: String?,
     messages: List<MessageItem>,
     onToggleMemberList: () -> Unit,
     onSendMessage: (String) -> Unit,
     onSendFile: (Uri) -> Unit,
+    onLoadMore: () -> Unit = {},
     modifier: Modifier = Modifier,
     contentPadding: PaddingValues = PaddingValues(),
 ) {
@@ -151,7 +150,7 @@ fun MessageTimeline(
                 .padding(top = contentPadding.calculateTopPadding()),
         ) {
             if (selectedChannel != null) {
-                TopBar(channelName ?: selectedChannel.full, onToggleMemberList)
+                TopBar(channelName ?: selectedChannel, onToggleMemberList)
                 HorizontalDivider(color = MaterialTheme.colorScheme.surfaceVariant)
             }
 
@@ -175,6 +174,17 @@ fun MessageTimeline(
                     }
                 }
 
+                // Load more when scrolled near top (high index in reversed layout)
+                val shouldLoadMore by remember {
+                    derivedStateOf {
+                        val lastVisible = listState.layoutInfo.visibleItemsInfo.lastOrNull()?.index ?: 0
+                        lastVisible >= messages.size - 5
+                    }
+                }
+                LaunchedEffect(shouldLoadMore, messages.size) {
+                    if (shouldLoadMore && messages.isNotEmpty()) onLoadMore()
+                }
+
                 // Auto-scroll when near bottom and new messages arrive
                 LaunchedEffect(messages.size) {
                     if (listState.firstVisibleItemIndex <= 2) {
@@ -360,7 +370,7 @@ private fun GifContent(content: MessageContent.Gif) {
         content.width.toFloat() / content.height.toFloat() else 16f / 9f
 
     val exoPlayer = remember(content.url) {
-        val token = authRepository.getAccessToken()
+        val token = try { authRepository.getClient()?.session()?.accessToken } catch (_: Exception) { null }
         val dataSourceFactory = DefaultHttpDataSource.Factory().apply {
             if (token != null) {
                 setDefaultRequestProperties(mapOf("Authorization" to "Bearer $token"))
@@ -490,7 +500,7 @@ private fun FullscreenVideoPlayer(url: String, onDismiss: () -> Unit) {
     val context = LocalContext.current
     val authRepository: AuthRepository = koinInject()
     val exoPlayer = remember {
-        val token = authRepository.getAccessToken()
+        val token = try { authRepository.getClient()?.session()?.accessToken } catch (_: Exception) { null }
         val dataSourceFactory = DefaultHttpDataSource.Factory().apply {
             if (token != null) {
                 setDefaultRequestProperties(mapOf("Authorization" to "Bearer $token"))

app/src/main/java/com/example/fluffytrix/ui/screens/main/components/SpaceList.kt

@@ -35,13 +35,14 @@ import androidx.compose.ui.unit.sp
 import coil3.compose.AsyncImage
 import com.example.fluffytrix.ui.screens.main.SpaceItem
 import com.example.fluffytrix.ui.screens.main.UnreadStatus
-import net.folivo.trixnity.core.model.RoomId
 
 @Composable
 fun SpaceList(
     spaces: List<SpaceItem>,
-    selectedSpace: RoomId?,
+    selectedSpace: String?,
-    onSpaceClick: (RoomId) -> Unit,
+    homeUnreadStatus: UnreadStatus = UnreadStatus.NONE,
+    onSpaceClick: (String) -> Unit,
+    onHomeClick: () -> Unit,
     onToggleChannelList: () -> Unit,
     contentPadding: PaddingValues,
 ) {
@@ -68,27 +69,41 @@ fun SpaceList(
 
         // Home button
         item {
-            Box(
+            Box(modifier = Modifier.size(48.dp)) {
-                modifier = Modifier
+                Box(
-                    .size(48.dp)
+                    modifier = Modifier
-                    .clip(if (selectedSpace == null) RoundedCornerShape(16.dp) else CircleShape)
+                        .size(48.dp)
-                    .background(
+                        .clip(if (selectedSpace == null) RoundedCornerShape(16.dp) else CircleShape)
-                        if (selectedSpace == null) MaterialTheme.colorScheme.primary
+                        .background(
-                        else MaterialTheme.colorScheme.surface
+                            if (selectedSpace == null) MaterialTheme.colorScheme.primary
+                            else MaterialTheme.colorScheme.surface
+                        )
+                        .clickable { onHomeClick() },
+                    contentAlignment = Alignment.Center,
+                ) {
+                    Icon(
+                        imageVector = Icons.Default.Home,
+                        contentDescription = "Home",
+                        tint = if (selectedSpace == null) MaterialTheme.colorScheme.onPrimary
+                        else MaterialTheme.colorScheme.onSurface,
                     )
-                    .clickable { /* home/all rooms */ },
+                }
-                contentAlignment = Alignment.Center,
+                if (homeUnreadStatus != UnreadStatus.NONE) {
-            ) {
+                    Box(
-                Icon(
+                        modifier = Modifier
-                    imageVector = Icons.Default.Home,
+                            .size(8.dp)
-                    contentDescription = "Home",
+                            .align(Alignment.TopEnd)
-                    tint = if (selectedSpace == null) MaterialTheme.colorScheme.onPrimary
+                            .background(
-                    else MaterialTheme.colorScheme.onSurface,
+                                if (homeUnreadStatus == UnreadStatus.MENTIONED) androidx.compose.ui.graphics.Color.Red
-                )
+                                else androidx.compose.ui.graphics.Color.Gray,
+                                CircleShape,
+                            ),
+                    )
+                }
             }
         }
 
-        items(spaces, key = { it.id.full }) { space ->
+        items(spaces, key = { it.id }) { space ->
             val isSelected = space.id == selectedSpace
             Box(modifier = Modifier.size(48.dp)) {
                 Box(

app/src/main/java/com/example/fluffytrix/ui/screens/verification/VerificationViewModel.kt

@@ -5,14 +5,12 @@ import androidx.lifecycle.viewModelScope
 import com.example.fluffytrix.data.repository.AuthRepository
 import kotlinx.coroutines.flow.MutableStateFlow
 import kotlinx.coroutines.flow.StateFlow
-import kotlinx.coroutines.flow.collectLatest
 import kotlinx.coroutines.launch
-import net.folivo.trixnity.client.verification
+import org.matrix.rustcomponents.sdk.SessionVerificationController
-import net.folivo.trixnity.client.verification.ActiveDeviceVerification
+import org.matrix.rustcomponents.sdk.SessionVerificationControllerDelegate
-import net.folivo.trixnity.client.verification.ActiveSasVerificationState
+import org.matrix.rustcomponents.sdk.SessionVerificationData
-import net.folivo.trixnity.client.verification.ActiveVerificationState
+import org.matrix.rustcomponents.sdk.SessionVerificationRequestDetails
-import net.folivo.trixnity.client.verification.SelfVerificationMethod
+import org.matrix.rustcomponents.sdk.VerificationState
-import net.folivo.trixnity.client.verification.VerificationService.SelfVerificationMethods
 
 sealed class VerificationUiState {
     data object Loading : VerificationUiState()
@@ -41,158 +39,126 @@ class VerificationViewModel(
     private val _uiState = MutableStateFlow<VerificationUiState>(VerificationUiState.Loading)
     val uiState: StateFlow<VerificationUiState> = _uiState
 
-    private var selfVerificationMethods: SelfVerificationMethods? = null
+    private var verificationController: SessionVerificationController? = null
-    private var activeDeviceVerification: ActiveDeviceVerification? = null
 
     init {
-        loadVerificationMethods()
+        checkVerificationStatus()
     }
 
-    private fun loadVerificationMethods() {
+    private fun checkVerificationStatus() {
         val client = authRepository.getClient() ?: run {
             _uiState.value = VerificationUiState.Error("Not logged in")
             return
         }
 
         viewModelScope.launch {
-            client.verification.getSelfVerificationMethods().collectLatest { methods ->
+            try {
-                selfVerificationMethods = methods
+                // Sync must be running before encryption/verification APIs work
-                when (methods) {
+                authRepository.getOrStartSync()
-                    is SelfVerificationMethods.PreconditionsNotMet ->
+                // Give sync a moment to initialize encryption state
-                        _uiState.value = VerificationUiState.Loading
+                kotlinx.coroutines.delay(2000)
 
-                    is SelfVerificationMethods.NoCrossSigningEnabled ->
+                val verState = try {
-                        _uiState.value = VerificationUiState.NoCrossSigning
+                    client.encryption().verificationState()
+                } catch (_: Exception) { VerificationState.UNKNOWN }
 
-                    is SelfVerificationMethods.AlreadyCrossSigned ->
+                if (verState == VerificationState.VERIFIED) {
-                        _uiState.value = VerificationUiState.AlreadyVerified
+                    _uiState.value = VerificationUiState.AlreadyVerified
+                    return@launch
+                }
 
-                    is SelfVerificationMethods.CrossSigningEnabled -> {
+                val controller = try {
-                        if (methods.methods.isEmpty()) {
+                    client.getSessionVerificationController()
-                            _uiState.value = VerificationUiState.NoCrossSigning
+                } catch (_: Exception) { null }
-                        } else {
+                verificationController = controller
-                            _uiState.value = VerificationUiState.MethodSelection(
+
-                                hasDeviceVerification = methods.methods.any {
+                controller?.setDelegate(object : SessionVerificationControllerDelegate {
-                                    it is SelfVerificationMethod.CrossSignedDeviceVerification
+                    override fun didReceiveVerificationRequest(details: SessionVerificationRequestDetails) {
-                                },
+                        // Another device requested verification with us
-                                hasRecoveryKey = methods.methods.any {
+                    }
-                                    it is SelfVerificationMethod.AesHmacSha2RecoveryKey
+
-                                },
+                    override fun didAcceptVerificationRequest() {
-                                hasPassphrase = methods.methods.any {
+                        _uiState.value = VerificationUiState.WaitingForDevice
-                                    it is SelfVerificationMethod.AesHmacSha2RecoveryKeyWithPbkdf2Passphrase
+                    }
-                                },
+
-                            )
+                    override fun didStartSasVerification() {
+                        // SAS verification started, waiting for emoji data
+                    }
+
+                    override fun didReceiveVerificationData(data: SessionVerificationData) {
+                        when (data) {
+                            is SessionVerificationData.Emojis -> {
+                                _uiState.value = VerificationUiState.EmojiComparison(
+                                    emojis = data.emojis.map { emoji ->
+                                        emoji.symbol().codePointAt(0) to emoji.description()
+                                    },
+                                    decimals = emptyList(),
+                                )
+                            }
+                            is SessionVerificationData.Decimals -> {
+                                _uiState.value = VerificationUiState.EmojiComparison(
+                                    emojis = emptyList(),
+                                    decimals = data.values.map { it.toInt() },
+                                )
+                            }
                         }
                     }
-                }
+
+                    override fun didCancel() {
+                        _uiState.value = VerificationUiState.Error("Verification cancelled")
+                    }
+
+                    override fun didFail() {
+                        _uiState.value = VerificationUiState.Error("Verification failed")
+                    }
+
+                    override fun didFinish() {
+                        _uiState.value = VerificationUiState.VerificationDone
+                    }
+                })
+
+                _uiState.value = VerificationUiState.MethodSelection(
+                    hasDeviceVerification = true,
+                    hasRecoveryKey = true,
+                    hasPassphrase = false,
+                )
+            } catch (e: Exception) {
+                _uiState.value = VerificationUiState.Error(e.message ?: "Failed to initialize verification")
             }
         }
     }
 
     fun startDeviceVerification() {
-        val methods = selfVerificationMethods as? SelfVerificationMethods.CrossSigningEnabled ?: return
+        val controller = verificationController ?: return
-        val deviceMethod = methods.methods.filterIsInstance<SelfVerificationMethod.CrossSignedDeviceVerification>()
-            .firstOrNull() ?: return
-
         _uiState.value = VerificationUiState.WaitingForDevice
 
         viewModelScope.launch {
-            deviceMethod.createDeviceVerification()
+            try {
-                .onSuccess { verification ->
+                controller.requestDeviceVerification()
-                    activeDeviceVerification = verification
+            } catch (e: Exception) {
-                    observeVerificationState(verification)
+                _uiState.value = VerificationUiState.Error(e.message ?: "Failed to start verification")
-                }
-                .onFailure {
-                    _uiState.value = VerificationUiState.Error(it.message ?: "Failed to start verification")
-                }
-        }
-    }
-
-    private fun observeVerificationState(verification: ActiveDeviceVerification) {
-        viewModelScope.launch {
-            verification.state.collectLatest { state ->
-                when (state) {
-                    is ActiveVerificationState.TheirRequest -> {
-                        state.ready()
-                    }
-
-                    is ActiveVerificationState.Ready -> {
-                        state.start(net.folivo.trixnity.core.model.events.m.key.verification.VerificationMethod.Sas)
-                    }
-
-                    is ActiveVerificationState.Start -> {
-                        val method = state.method
-                        if (method is net.folivo.trixnity.client.verification.ActiveSasVerificationMethod) {
-                            observeSasState(method)
-                        }
-                    }
-
-                    is ActiveVerificationState.Done -> {
-                        _uiState.value = VerificationUiState.VerificationDone
-                    }
-
-                    is ActiveVerificationState.Cancel -> {
-                        _uiState.value = VerificationUiState.Error(
-                            "Verification cancelled: ${state.content.reason}"
-                        )
-                    }
-
-                    else -> { /* OwnRequest, WaitForDone, etc - keep current state */ }
-                }
-            }
-        }
-    }
-
-    private fun observeSasState(method: net.folivo.trixnity.client.verification.ActiveSasVerificationMethod) {
-        viewModelScope.launch {
-            method.state.collectLatest { sasState ->
-                when (sasState) {
-                    is ActiveSasVerificationState.TheirSasStart -> {
-                        sasState.accept()
-                    }
-
-                    is ActiveSasVerificationState.ComparisonByUser -> {
-                        _uiState.value = VerificationUiState.EmojiComparison(
-                            emojis = sasState.emojis,
-                            decimals = sasState.decimal,
-                        )
-                    }
-
-                    else -> { /* OwnSasStart, Accept, WaitForKeys, WaitForMacs */ }
-                }
             }
         }
     }
 
     fun confirmEmojiMatch() {
-        val state = (_uiState.value as? VerificationUiState.EmojiComparison) ?: return
+        val controller = verificationController ?: return
         viewModelScope.launch {
-            val verification = activeDeviceVerification ?: return@launch
+            try {
-            val verState = verification.state.value
+                controller.approveVerification()
-            if (verState is ActiveVerificationState.Start) {
+            } catch (e: Exception) {
-                val method = verState.method
+                _uiState.value = VerificationUiState.Error(e.message ?: "Failed to confirm verification")
-                if (method is net.folivo.trixnity.client.verification.ActiveSasVerificationMethod) {
-                    val sasState = method.state.value
-                    if (sasState is ActiveSasVerificationState.ComparisonByUser) {
-                        sasState.match()
-                    }
-                }
             }
         }
     }
 
     fun rejectEmojiMatch() {
+        val controller = verificationController ?: return
         viewModelScope.launch {
-            val verification = activeDeviceVerification ?: return@launch
+            try {
-            val verState = verification.state.value
+                controller.cancelVerification()
-            if (verState is ActiveVerificationState.Start) {
+            } catch (e: Exception) {
-                val method = verState.method
+                _uiState.value = VerificationUiState.Error(e.message ?: "Failed to cancel verification")
-                if (method is net.folivo.trixnity.client.verification.ActiveSasVerificationMethod) {
-                    val sasState = method.state.value
-                    if (sasState is ActiveSasVerificationState.ComparisonByUser) {
-                        sasState.noMatch()
-                    }
-                }
             }
         }
     }
@@ -206,43 +172,24 @@ class VerificationViewModel(
     }
 
     fun verifyWithRecoveryKey(recoveryKey: String) {
-        val methods = selfVerificationMethods as? SelfVerificationMethods.CrossSigningEnabled ?: return
+        val client = authRepository.getClient() ?: return
-        val keyMethod = methods.methods.filterIsInstance<SelfVerificationMethod.AesHmacSha2RecoveryKey>()
-            .firstOrNull() ?: return
-
         viewModelScope.launch {
-            keyMethod.verify(recoveryKey)
+            try {
-                .onSuccess {
+                client.encryption().recover(recoveryKey)
-                    _uiState.value = VerificationUiState.VerificationDone
+                _uiState.value = VerificationUiState.VerificationDone
-                }
+            } catch (e: Exception) {
-                .onFailure {
+                _uiState.value = VerificationUiState.Error(
-                    _uiState.value = VerificationUiState.Error(
+                    e.message ?: "Invalid recovery key"
-                        it.message ?: "Invalid recovery key"
+                )
-                    )
+            }
-                }
         }
     }
 
     fun verifyWithPassphrase(passphrase: String) {
-        val methods = selfVerificationMethods as? SelfVerificationMethods.CrossSigningEnabled ?: return
+        verifyWithRecoveryKey(passphrase)
-        val passphraseMethod = methods.methods
-            .filterIsInstance<SelfVerificationMethod.AesHmacSha2RecoveryKeyWithPbkdf2Passphrase>()
-            .firstOrNull() ?: return
-
-        viewModelScope.launch {
-            passphraseMethod.verify(passphrase)
-                .onSuccess {
-                    _uiState.value = VerificationUiState.VerificationDone
-                }
-                .onFailure {
-                    _uiState.value = VerificationUiState.Error(
-                        it.message ?: "Invalid passphrase"
-                    )
-                }
-        }
     }
 
     fun goBack() {
-        loadVerificationMethods()
+        checkVerificationStatus()
     }
 }

gradle/libs.versions.toml

@@ -15,11 +15,11 @@ lifecycleViewModel = "2.9.1"
 koin = "4.1.1"
 datastore = "1.1.7"
 coroutines = "1.10.2"
-trixnity = "4.22.7"
+matrixRustSdk = "26.02.19"
-ktor = "3.3.0"
 coil = "3.2.0"
 media3 = "1.6.0"
 markdownRenderer = "0.37.0"
+kotlinxSerialization = "1.8.1"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -55,14 +55,11 @@ datastore-preferences = { group = "androidx.datastore", name = "datastore-prefer
 coroutines-core = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-core", version.ref = "coroutines" }
 coroutines-android = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-android", version.ref = "coroutines" }
 
-# Trixnity (using -jvm variants for Android)
+# Matrix Rust SDK
-trixnity-client = { group = "net.folivo", name = "trixnity-client-jvm", version.ref = "trixnity" }
+matrix-rust-sdk = { group = "org.matrix.rustcomponents", name = "sdk-android", version.ref = "matrixRustSdk" }
-trixnity-clientserverapi-client = { group = "net.folivo", name = "trixnity-clientserverapi-client-jvm", version.ref = "trixnity" }
-trixnity-olm = { group = "net.folivo", name = "trixnity-olm-android", version.ref = "trixnity" }
-trixnity-client-repository-room = { group = "net.folivo", name = "trixnity-client-repository-room-jvm", version.ref = "trixnity" }
 
-# Ktor (needed by Trixnity on Android)
+# Kotlinx Serialization
-ktor-client-okhttp = { group = "io.ktor", name = "ktor-client-okhttp", version.ref = "ktor" }
+kotlinx-serialization-json = { group = "org.jetbrains.kotlinx", name = "kotlinx-serialization-json", version.ref = "kotlinxSerialization" }
 
 # Coil (image loading)
 coil-compose = { group = "io.coil-kt.coil3", name = "coil-compose", version.ref = "coil" }