Fixup aspect ratio calculation for non-null widths

Fixes #40.

Reviewed-on: Nexus/nexus#44
Reviewed-by: Henry Hiles <henry@henryhiles.com>

.github/workflows/android.yml

@@ -0,0 +1,39 @@
+name: "Build APK"
+
+on:
+  push:
+    branches: ["main"]
+    tags: ["*"]
+  workflow_dispatch:
+
+jobs:
+  build-apk:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+        with:
+          submodules: recursive
+
+      - name: Lix GHA Installer Action
+        uses: samueldr/lix-gha-installer-action@v2026-02-22
+        with:
+          extra_nix_config: experimental-features = nix-command flakes flake-self-attrs
+      
+      - name: Decode keystore
+        run: echo "$KEYSTORE_CONTENT" | base64 --decode > keystore.jks
+        env:
+          KEYSTORE_CONTENT: ${{ secrets.KEYSTORE_CONTENT }}
+
+      - name: Build app
+        run: nix develop --command bash -c "flutter pub get && dart scripts/generate.dart && flutter pub run build_runner build && flutter build apk --release"
+        env:
+          KEYSTORE_PATH: ../../keystore.jks
+          KEYSTORE_PASSWORD: ${{ secrets.KEYSTORE_PASSWORD }}
+
+      - name: Upload installer artifact
+        uses: actions/upload-artifact@v6
+        with:
+          name: APK
+          path: build/app/outputs/flutter-apk/app-release.apk

.github/workflows/flatpak.yml

@@ -0,0 +1,37 @@
+name: "Build Flatpaks"
+
+on:
+  push:
+    branches: ["main"]
+    tags: ["*"]
+  workflow_dispatch:
+
+jobs:
+  build-flatpak:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: x86_64
+            runner: ubuntu-latest
+          - arch: aarch64
+            runner: ubuntu-24.04-arm
+    runs-on: ${{ matrix.runner }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Lix GHA Installer Action
+        uses: samueldr/lix-gha-installer-action@v2026-02-22
+        with:
+          extra_nix_config: experimental-features = nix-command flakes flake-self-attrs
+
+      - name: Build app
+        run: nix build .#flatpak
+
+      - name: Upload installer artifact
+        uses: actions/upload-artifact@v6
+        with:
+          name: flatpak-${{ matrix.arch }}
+          path: result/nexus.federated.Nexus.flatpak

.github/workflows/windows.yml

@@ -1,46 +1,71 @@
-name: "Build Windows Version"
+name: "Build EXE"
 
 on:
+  push:
+    branches: ["main"]
+    tags: ["*"]
   workflow_dispatch:
 
 jobs:
-  build-windows:
-    runs-on: "windows-latest"
+  build-exe:
+    runs-on: windows-latest
 
     steps:
-      - name: "Checkout repository"
-        uses: "actions/checkout@v4"
-
-      - name: "Set up Flutter"
-        uses: "subosito/flutter-action@v2"
-
-      - name: "Set up Rust"
-        uses: "dtolnay/rust-toolchain@stable"
+      - name: Checkout repository
+        uses: actions/checkout@v6
         with:
-          targets: "x86_64-pc-windows-msvc"
+          submodules: recursive
 
-      - name: "Install Flutter dependencies"
-        run: flutter pub get
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: 3.41.9
 
-      - name: "Run build_runner & build Windows EXE"
+      - name: Set up Go
+        uses: actions/setup-go@v6
+        with:
+          go-version-file: gomuks/go.mod
+
+      - name: Setup MSYS2
+        uses: msys2/setup-msys2@v2
+        with:
+          msystem: MINGW64
+          install: >-
+            mingw-w64-x86_64-gcc
+
+      - name: Go build
         run: |
-          flutter pub run build_runner build --delete-conflicting-outputs
+          cd gomuks/pkg/ffi
+          go build -tags goolm,sqlite_fts5 -o ../../../libgomuks.dll -buildmode=c-shared
+
+      - name: Build with Flutter
+        run: |
+          flutter pub get
+          dart scripts/generate.dart
+          flutter pub run build_runner build
           flutter build windows --release
 
-      - name: "Upload exe zip"
-        uses: "actions/upload-artifact@v4"
-        with:
-          name: "windows-portable"
-          path: "build/windows/x64/runner/Release/"
+      - name: Copy MinGW runtime DLLs
+        shell: msys2 {0}
+        run: |
+          cp /mingw64/bin/libgcc_s_seh-1.dll build/windows/x64/runner/Release/
+          cp /mingw64/bin/libwinpthread-1.dll build/windows/x64/runner/Release/
+          cp /mingw64/bin/libstdc++-6.dll build/windows/x64/runner/Release/
 
-      - name: "Install Inno Setup"
+      - name: Upload exe zip
+        uses: actions/upload-artifact@v6
+        with:
+          name: windows-portable
+          path: build/windows/x64/runner/Release/
+
+      - name: Install Inno Setup
         run: choco install innosetup -y
 
-      - name: "Build Inno Setup installer"
+      - name: Build Inno Setup installer
         run: iscc windows/installer.iss
 
-      - name: "Upload installer artifact"
-        uses: "actions/upload-artifact@v4"
+      - name: Upload installer artifact
+        uses: actions/upload-artifact@v6
         with:
-          name: "windows-installer"
-          path: "windows/dist/Nexus-Setup.exe"
+          name: windows-installer
+          path: windows/dist/Nexus-Setup.exe

.gitignore

@@ -36,7 +36,9 @@ key.properties
 # Generated Files
 *.g.dart
 *.freezed.dart
-src/
 
 # Devel Password
-password.txt
+password.txt
+
+# Nix
+/result

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "gomuks"]
+	path = gomuks
+	url = https://github.com/gomuks/gomuks
+	branch = main

.vscode/settings.json

@@ -2,8 +2,14 @@
     "cSpell.words": [
         "Appbar",
         "Displayname",
+        "fluttertagger",
+        "Gomuks",
         "Homeserver",
+        "Linkified",
+        "localpart",
+        "msgtype",
+        "muks",
         "prefs",
-        "vodozemac"
+        "unban"
     ]
 }

DEVELOPMENT.md

@@ -0,0 +1,70 @@
+# Development Documentation
+
+## Build instructions
+
+Build instructions can be found in [README.md](./README.md#build-it-yourself).
+
+## Updating Gomuks
+
+You can run the following command to update the Gomuks submodule:
+
+```sh
+git submodule update --remote
+```
+
+## Code Style
+
+See [Effective Dart: Style](https://dart.dev/effective-dart/style) for general rules. There are some extra rules detailed below:
+
+### Controllers and Helpers ([Riverpod](https://pub.dev/packages/riverpod))
+
+Controllers live in `lib/controllers/` and provide a source that exposes data and logic via Riverpod providers, allowing other parts of the code to watch state changes with ref.watch (`ref.watch(MyController.provider)`), access the current value with ref.read (`ref.read(MyController.provider)`), and run helper methods on those classes using the notifier:
+
+```dart
+ref.watch(MyController.provider.notifier).helperMethod()
+```
+
+We use an object oriented style for controllers, where `provider` is a static member on the controller class. E.g.
+
+```dart
+class MyController extends AsyncNotifier<DataThisControllerExposes> {
+  final SomeInputType input;
+  MyController(this.input);
+
+  @override
+  Future<DataThisControllerExposes> build() async {
+    return input.foo;
+  }
+
+  static final provider =
+	AsyncNotifierProvider.family<MyController, DataThisControllerExposes, SomeInputType>(
+	  AuthorController.new,
+	);
+}
+```
+
+Providers which are not controllers, e.g. they expose no data, only methods, should instead live in `lib/helpers/`. For an example, see `lib/helpers/launch_helper.dart`. Other, non-provider helpers, like extensions or helper methods can also go in `lib/helpers/`.
+
+### Don't use StatefulWidgets ([Flutter Hooks](https://pub.dev/packages/flutter_hooks))
+
+This project uses Flutter Hooks to help with boilerplate that StatefulWidgets create. Instead of using a StatefulWidget, we just use hooks like `useState` or `useEffect` in the build method of a `HookWidget`, which is a drop in replacement for `StatelessWidget`. If you need both a `WidgetRef` to watch providers, and access to hooks, use `HookConsumerWidget`.
+
+### Models ([Freezed](https://pub.dev/packages/freezed))
+
+We use Freezed for our models to avoid boilerplate and enforce an immutable style of state and data modeling throughout the code. See their documentation for more info, or see our existing models in `lib/models/`.
+
+### Immutable Data Collections ([Fast Immutable Collections](https://pub.dev/packages/fast_immutable_collections))
+
+When possible, use immutable collections instead of the mutable equivalent. For example, use `IMap` over `Map`, `IList` over `List`, `ISet` over `Set`. This matches the immutable style of Riverpod and Freezed.
+
+### Don't create globals
+
+When possible, we prefer not to create global variables or methods. You can usually replace a global variable with a Riverpod controller, and a global method with an extension method.
+
+## LLM/AI Assisted Contributions
+
+Largely LLM generated code is NOT allowed. All contributions should be written by humans, with minimal to no LLM assistance. Please disclose any usage of LLMs.
+
+## Code of Conduct
+
+All contributions must follow the [Federated Nexus Code of Conduct](https://federated.nexus/code/).

README.md

@@ -1,11 +1,11 @@
 # Nexus Client
 
 > [!WARNING]
-> Nexus Client is still heavily in development, and is not ready for use!
+> Nexus Client is still in development, and doesn't support everything needed for daily use.
 
 ## Description
 
-A simple and user-friendly Matrix client made with Flutter and the Matrix Dart SDK.
+A simple and user-friendly Matrix client made with Flutter and a Gomuks backend.
 
 ## Screenshots
 
@@ -15,135 +15,186 @@ A simple and user-friendly Matrix client made with Flutter and the Matrix Dart S
 
 ## Progress
 
--   [ ] New logo
--   [ ] Make context menus appear as bottom sheets on mobile
--   [x] Move from the Dart SDK to the Gomuks SDK with Dart bindings: https://git.federated.nexus/Henry-Hiles/nexus/pulls/2
-    -   [ ] Allow using remote gomuks over websocket
--   [ ] Platform Support
-    -   [x] Linux
-    -   [x] Windows
-    -   [ ] MacOS
-    -   [ ] Android
-    -   [ ] iOS
-    -   [ ] Web (may not be possible)
--   [x] Login
-    -   [x] Username / password auth
-    -   [ ] OAuth / OIDC
-    -   [x] Improve initial sync experience
--   [x] Rooms / Spaces
-    -   [x] Displaying and choosing
-    -   [x] Reading, showing unread
-        -   [x] Mark as read button on rooms and spaces
-    -   [ ] Searching
-    -   [ ] Creating (Rooms, Spaces, and DMs)
-    -   [x] Joining
-        -   [ ] Parse vias
-        -   [x] Using a text/uri/link
-            -   [x] Plain text
-            -   [x] `matrix:` Uri
-            -   [x] Matrix.to link
-        -   [ ] From space
-        -   [ ] Exploring
-    -   [x] Leaving
-    -   [x] Subspaces
--   [x] Messages
-    -   [x] Encryption
-        -   [x] Restoring crypto identity from a recovery passphrase/key
-    -   [x] Sending
-        -   [x] Plain text
-        -   [x] HTML/Markdown
-        -   [x] Replies
-            -   [x] Choose ping on/off
-        -   [ ] Per message profiles
-        -   [ ] Attachments
-        -   [ ] Commands with [MSC4391](https://github.com/matrix-org/matrix-spec-proposals/pull/4391)
-        -   [x] Mentions
-            -   [x] Users
-            -   [x] Rooms
-            -   [ ] Inline emoji picker (Putting this here since it'll be implemented the same way as mentions)
-        -   [ ] Custom emojis/stickers
-        -   [ ] GIFs using Gomuks' GIF proxies
-    -   [x] Recieving
-        -   [x] Plain text
-        -   [x] Per message profiles
-        -   [x] HTML
-        -   [x] Replies
-            -   [x] Viewing
-            -   [ ] Jump to original message
-                -   [x] In loaded timeline
-                -   [ ] Out of loaded timeline
-        -   [x] Edits
-        -   [x] Attachments
-            -   [x] Unencrypted
-            -   [ ] Encrypted
-            -   [x] Blurhashing
-            -   [ ] Downloading attachments
-            -   [x] Opening attachments in their own view
-        -   [ ] Polls: Waiting on https://github.com/SwanFlutter/dynamic_polls/issues/1
-        -   [x] Mentions
-            -   [x] Users
-            -   [x] Rooms
-                -   [ ] Plain text (not sure if I want to add this or not, I probably won't unless there's interest)
-                -   [x] Matrix URIs
-                -   [x] Matrix.to links
-            -   [ ] Do some fancy fetching to get nice names
-            -   [ ] Make clickable
-        -   [x] Custom emojis/stickers
-        -   [x] History loading
-            -   [x] Backwards
-            -   [ ] Forwards
-    -   [x] Editing
-    -   [x] Deleting
--   [ ] Reactions: Waiting on https://github.com/flyerhq/flutter_chat_ui/pull/838 or me doing a custom impl
--   [ ] Pins
-    -   [ ] Displaying
-    -   [ ] Creating
--   [ ] Threads
--   [ ] Profile popouts
--   [ ] Copy link to [room, space]
--   [ ] Reporting
-    -   [x] Events
-    -   [ ] Rooms
--   [ ] Notifications using UnifiedPush
--   [ ] Group calls using [MSC4195](https://github.com/matrix-org/matrix-spec-proposals/pull/4195)
--   [ ] Invites
--   [ ] Settings
-    -   [ ] Light/Dark mode
-    -   [ ] SSD or CSD
-    -   [ ] Show media by default
-    -   [ ] Dynamic Theming
-    -   [ ] Devices
-        -   [ ] Viewing devices
-        -   [ ] Verifying devices
-    -   [ ] URL preview: Server / Client / None
-    -   [ ] Account changes
-        -   [ ] Display name
-        -   [ ] Profile picture
-        -   [ ] Timezone
-        -   [ ] Pronouns
-        -   [ ] Password
-    -   [ ] About
-    -   [x] Log Out
+- [ ] Platform Support
+    - [x] Linux
+    - [x] Windows
+    - [x] Android
+    - [ ] MacOS
+    - [ ] iOS
+    - [ ] Web (may not be possible)
+- [x] Login
+    - [x] Username / password auth
+    - [ ] OAuth / OIDC
+    - [x] Improve initial sync experience
+- [x] Rooms / Spaces
+    - [x] Displaying and choosing
+    - [x] Reading, showing unread
+        - [x] Mark as read button on rooms and spaces
+    - [ ] Searching
+    - [ ] Creating (Rooms, Spaces, and DMs)
+    - [x] Joining
+        - [x] Parse vias
+        - [x] Using a text/uri/link
+            - [x] Plain text
+            - [x] `matrix:` Uri
+            - [x] Matrix.to link
+        - [ ] From space
+        - [ ] From directory
+    - [x] Leaving
+    - [x] Subspaces
+- [x] Messages
+    - [x] Encryption
+        - [x] Restoring crypto identity from a recovery passphrase/key
+    - [x] Sending
+        - [x] Plain text
+        - [x] HTML/Markdown
+        - [x] Replies
+            - [x] Choose ping on/off
+        - [x] Per message profiles
+        - [ ] Attachments
+        - [ ] Commands with [MSC4391](https://github.com/matrix-org/matrix-spec-proposals/pull/4391)
+        - [x] Mentions
+            - [x] Users
+            - [x] Rooms
+            - [ ] Inline emoji picker (Putting this here since it'll be implemented the same way as mentions)
+        - [ ] Custom emojis/stickers
+        - [ ] GIFs using Gomuks' GIF proxies
+    - [x] Receiving
+        - [x] Plain text
+        - [x] Per message profiles
+        - [x] HTML
+        - [x] URL Previews
+        - [x] Replies
+            - [x] Viewing
+            - [ ] Jump to original message
+                - [x] In loaded timeline
+                - [ ] Out of loaded timeline
+        - [x] Edits
+        - [x] Attachments
+            - [x] Unencrypted
+            - [ ] Encrypted
+            - [x] Blurhashing
+            - [ ] Downloading attachments
+            - [x] Opening attachments in their own view
+        - [ ] Polls
+        - [x] Mentions
+            - [x] Users
+                - [x] Clickable
+            - [x] Rooms
+                - [ ] Clickable
+                - [x] Matrix URIs
+                - [x] Matrix.to links
+            - [x] Events
+                - [ ] Render more nicely
+                - [ ] Clickable
+        - [x] Custom emojis/stickers
+        - [x] History loading
+            - [x] Backwards
+            - [ ] Forwards
+    - [x] Editing
+    - [x] Deleting
+- [x] Reactions
+- [ ] Pins
+    - [ ] Displaying
+    - [ ] Creating
+- [ ] Threads
+- [x] Profile popouts
+    - [x] Working actions
+- [x] Copy link to:
+    - [x] Room
+    - [x] Space
+    - [x] Message
+- [ ] Reporting
+    - [x] Events
+    - [ ] Rooms
+- [x] Member list
+    - [x] Sort by power level
+    - [ ] Colors based off of power level
+- [ ] Notifications using UnifiedPush ([#35](https://git.federated.nexus/Nexus/nexus/issues/35))
+- [ ] Group calls using [MSC4195](https://github.com/matrix-org/matrix-spec-proposals/pull/4195)
+- [ ] Invites
+- [ ] Settings ([#37](https://git.federated.nexus/Nexus/nexus/issues/37))
+    - [ ] Matrix: URIs vs Matrix.to links
+    - [ ] Light/Dark mode
+    - [ ] Remote Gomuks instance
+    - [ ] SSD or CSD
+    - [ ] Align your message bubbles to left or right
+    - [ ] Show media by default
+    - [ ] Dynamic Theming
+    - [ ] Personas
+        - [ ] Setting per-message profiles for users (MSC4461)
+        - [ ] Explain how to send messages using a certain PMP
+    - [ ] Devices
+        - [ ] Viewing devices
+        - [ ] Verifying devices
+    - [ ] URL preview: Server / Sending Client (Beeper spec) / None
+    - [ ] Account changes
+        - [ ] Display name
+        - [ ] Profile picture
+        - [ ] Timezone
+        - [ ] Pronouns
+        - [ ] Password
+    - [ ] About
+    - [x] Log Out
 
-## Build Instructions
+## Try it out
 
-First, clone and open the repo:
+If you want to try out Nexus, grab one of the following artifacts from CI:
 
-```sh
-git clone https://git.federated.nexus/Henry-Hiles/nexus
-cd nexus
-```
+- [Android APK](https://nightly.link/Henry-Hiles/nexus/workflows/android/main/APK.zip)
+- Windows
+    - [Portable Build](https://nightly.link/Henry-Hiles/nexus/workflows/windows/main/windows-portable.zip)
+    - [Installer](https://nightly.link/Henry-Hiles/nexus/workflows/windows/main/windows-installer.zip)
+- Flatpak
+    - [AArch64/Arm64](https://nightly.link/Henry-Hiles/nexus/workflows/flatpak/main/flatpak-aarch64.zip)
+    - [x86_64/AMD64](https://nightly.link/Henry-Hiles/nexus/workflows/flatpak/main/flatpak-x86_64.zip)
+
+Or, try the Nix package: `nix run git+https://git.federated.nexus/Nexus/nexus`
+
+## Build it yourself
 
 ### Prerequisites
 
 #### Linux
 
--   With Nix: Either use direnv, or `nix flake develop`
--   Without Nix: Install Flutter, Go, Olm, Git, Clang, and GLibc.
+- With Nix: Either use direnv and `direnv allow`, or `nix flake develop`
+- Without Nix: Install Flutter, Go, Git, Libclang, and Glibc. Do not use any Snap packages, they cause various compilation issues.
 
-#### Windows / MacOS
+#### Windows
 
-I don't really know. You will need Flutter, Git, Olm, Go, and Visual Studio tools, and otherwise I guess just keep installing stuff until there aren't any errors. I will look into this sometimeTM.
+You will need:
+
+- Flutter
+- Android SDK + NDK
+- Git
+- Go
+- Visual Studio 2022 (Desktop development with C++)
+- [MSYS2/MinGW-w64 GCC](https://www.msys2.org/) (for CGO)
+- [LLVM/Clang + libclang](https://clang.llvm.org/get_started.html) (for `ffigen`)
+
+On Windows, make sure these are available in your shell `PATH`:
+
+- `C:\msys64\ucrt64\bin` (or your MinGW bin path containing `x86_64-w64-mingw32-gcc.exe`)
+- `C:\Program Files\LLVM\bin` (contains `clang.exe` and `libclang.dll`)
+
+For `dart scripts/generate.dart`, you may also need:
+
+```powershell
+$env:CPATH = "C:\msys64\ucrt64\include"
+```
+
+#### MacOS
+
+Similar prerequisites apply (Flutter, Git, Go, C toolchain, LLVM/libclang), but exact setup has not been fully documented yet.
+
+### Clone repo
+
+First, clone and open the repo:
+
+```sh
+git clone --recurse-submodules https://git.federated.nexus/Nexus/nexus
+cd nexus
+```
 
 ### Set up Flutter
 
@@ -153,22 +204,23 @@ Get dependencies:
 flutter pub get
 ```
 
-Get dependencies:
+Generate Gomuks bindings:
 
 ```sh
-flutter pub get
+dart scripts/generate.dart
 ```
 
-Clone Gomuks and generate bindings:
-
-```sh
-scripts/generate.sh
-```
+> [!NOTE]
+> If you are having issues with `stddef.h` not being found, try setting CPATH manually:
+>
+> ```sh
+> export CPATH="$(clang -v 2>&1 | grep "Selected GCC installation" | rev | cut -d' ' -f1 | rev)/include"
+> ```
 
 Build generated files, and watch for new changes:
 
 ```sh
-flutter pub run build_runner watch --delete-conflicting-outputs
+flutter pub run build_runner watch
 ```
 
 Run the app:
@@ -177,6 +229,13 @@ Run the app:
 flutter run
 ```
 
+Development instructions can be found in [DEVELOPMENT.md](./DEVELOPMENT.md).
+
 ## Community
 
 Join the [Nexus Client Matrix Room](https://matrix.to/#/#nexus:federated.nexus) for questions or help with developing or using Nexus Client.
+
+# Credits
+
+Thank you Hylke Bons (https://planetpeanut.studio) for making the amazing icon for Nexus!
+Thank you Tulir Asokan for making [Gomuks](https://github.com/gomuks/gomuks), and helping us integrate it into Nexus!

android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -1,9 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
 <adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
-  <background android:drawable="@color/ic_launcher_background"/>
+  <background android:drawable="@drawable/ic_launcher_background"/>
   <foreground>
       <inset
           android:drawable="@drawable/ic_launcher_foreground"
           android:inset="16%" />
   </foreground>
+  <monochrome>
+      <inset
+          android:drawable="@drawable/ic_launcher_monochrome"
+          android:inset="16%" />
+  </monochrome>
 </adaptive-icon>

assets/background.svg

@@ -0,0 +1,257 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="512"
+   height="512"
+   viewBox="0 0 512 512"
+   fill="none"
+   version="1.1"
+   id="svg11"
+   sodipodi:docname="background.svg"
+   inkscape:version="1.4.3 (0d15f75042, 2025-12-25)"
+   inkscape:export-filename="background.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
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+     pagecolor="#505050"
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+      </mask>
+      <g
+         mask="url(#mask0_4033_8)"
+         id="g9">
+        <rect
+           x="52"
+           y="46"
+           width="17"
+           height="4"
+           fill="#2779dd"
+           id="rect9" />
+      </g>
+    </g>
+  </g>
+  <defs
+     id="defs11">
+    <radialGradient
+       id="paint0_radial_4033_8"
+       cx="0"
+       cy="0"
+       r="1"
+       gradientTransform="matrix(3.5,24.5214,-15.8099,2.26053,80,52.9904)"
+       gradientUnits="userSpaceOnUse">
+      <stop
+         stop-color="#72AAEE"
+         id="stop10" />
+      <stop
+         offset="1"
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+       id="clip0_4033_8">
+      <rect
+         width="128"
+         height="128"
+         fill="#ffffff"
+         id="rect11"
+         x="0"
+         y="0" />
+    </clipPath>
+  </defs>
+</svg>

assets/monochrome.svg

@@ -0,0 +1,178 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   width="512"
+   height="512"
+   viewBox="0 0 512 512"
+   fill="none"
+   version="1.1"
+   id="svg11"
+   sodipodi:docname="monochrome.svg"
+   inkscape:version="1.4.3 (0d15f75042, 2025-12-25)"
+   inkscape:export-filename="foreground.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:xlink="http://www.w3.org/1999/xlink"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:svg="http://www.w3.org/2000/svg">
+  <sodipodi:namedview
+     id="namedview11"
+     pagecolor="#505050"
+     bordercolor="#eeeeee"
+     borderopacity="1"
+     inkscape:showpageshadow="0"
+     inkscape:pageopacity="0"
+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#505050"
+     inkscape:zoom="1.240199"
+     inkscape:cx="156.02335"
+     inkscape:cy="321.3194"
+     inkscape:window-width="2544"
+     inkscape:window-height="1363"
+     inkscape:window-x="35"
+     inkscape:window-y="32"
+     inkscape:window-maximized="0"
+     inkscape:current-layer="svg11" />
+  <path
+     d="m 256,92 c 90.5748,0 164,73.4252 164,164 0,90.5748 -73.4252,164 -164,164 -34.5828,0 -66.6592,-10.712 -93.1092,-28.9884 l -39.2072,8.7656 c -6.8668,1.5348 -12.9952,-4.594 -11.4608,-11.4608 l 8.7616,-39.2108 C 102.7104,322.6564 92,290.5808 92,256 92,165.4252 165.4252,92 256,92 Z"
+     fill="#ffffff"
+     id="path7"
+     style="stroke-width:4"
+     clip-path="url(#clipPath1)"
+     inkscape:path-effect="#path-effect1" />
+  <defs
+     id="defs11">
+    <inkscape:path-effect
+       effect="powerclip"
+       message=""
+       id="path-effect1"
+       is_visible="true"
+       lpeversion="1"
+       inverse="true"
+       flatten="false"
+       hide_clip="false" />
+    <radialGradient
+       id="paint0_radial_4033_8"
+       cx="0"
+       cy="0"
+       r="1"
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+       gradientUnits="userSpaceOnUse">
+      <stop
+         stop-color="#72AAEE"
+         id="stop10" />
+      <stop
+         offset="1"
+         stop-color="#3584E4"
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+    <mask
+       id="mask0_4033_8"
+       maskUnits="userSpaceOnUse"
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+         id="path9" />
+    </mask>
+    <clipPath
+       clipPathUnits="userSpaceOnUse"
+       id="clipPath11">
+      <rect
+         width="128"
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+         x="0"
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+       clipPathUnits="userSpaceOnUse"
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+         width="128"
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+       clipPathUnits="userSpaceOnUse"
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+       r="1" />
+  </defs>
+</svg>

flake.lock

@@ -5,11 +5,11 @@
         "nixpkgs-lib": "nixpkgs-lib"
       },
       "locked": {
-        "lastModified": 1767609335,
-        "narHash": "sha256-feveD98mQpptwrAEggBQKJTYbvwwglSbOv53uCfH9PY=",
+        "lastModified": 1778716662,
+        "narHash": "sha256-m1Yf0wZ8j1OHjTc2UwHwyQRSnNeSgLJOd7q5Y45hzi4=",
         "owner": "hercules-ci",
         "repo": "flake-parts",
-        "rev": "250481aafeb741edfe23d29195671c19b36b6dca",
+        "rev": "f7c1a2d347e4c52d5fb8d10cb4d94b5884e546fb",
         "type": "github"
       },
       "original": {
@@ -18,13 +18,81 @@
         "type": "github"
       }
     },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1731533236,
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "nix2flatpak": {
+      "inputs": {
+        "flake-utils": "flake-utils",
+        "nixpkgs": "nixpkgs"
+      },
+      "locked": {
+        "lastModified": 1774860670,
+        "narHash": "sha256-YjJkQrvxrErXtfDi3obUn6rNmkA+CIAZ3f5NgL5xuYE=",
+        "owner": "neobrain",
+        "repo": "nix2flatpak",
+        "rev": "61d68e21e3fbc2d57590051f48736bea271f4aba",
+        "type": "github"
+      },
+      "original": {
+        "owner": "neobrain",
+        "repo": "nix2flatpak",
+        "type": "github"
+      }
+    },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1767640445,
-        "narHash": "sha256-UWYqmD7JFBEDBHWYcqE6s6c77pWdcU/i+bwD6XxMb8A=",
+        "lastModified": 1773389992,
+        "narHash": "sha256-wvfdLLWJ2I9oEpDd9PfMA8osfIZicoQ5MT1jIwNs9Tk=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "c06b4ae3d6599a672a6210b7021d699c351eebda",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "ref": "nixos-unstable",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1777168982,
+        "narHash": "sha256-GOkGPcboWE9BmGCRMLX3worL4EMnsnG8MyKmXNeYuhQ=",
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "rev": "f5901329dade4a6ea039af1433fb087bd9c1fe14",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-community",
+        "repo": "nixpkgs.lib",
+        "type": "github"
+      }
+    },
+    "nixpkgs_2": {
+      "locked": {
+        "lastModified": 1778869304,
+        "narHash": "sha256-30sZNZoA1cqF5JNO9fVX+wgiQYjB7HJqqJ4ztCDeBZE=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "9f0c42f8bc7151b8e7e5840fb3bd454ad850d8c5",
+        "rev": "d233902339c02a9c334e7e593de68855ad26c4cb",
         "type": "github"
       },
       "original": {
@@ -34,25 +102,26 @@
         "type": "github"
       }
     },
-    "nixpkgs-lib": {
-      "locked": {
-        "lastModified": 1765674936,
-        "narHash": "sha256-k00uTP4JNfmejrCLJOwdObYC9jHRrr/5M/a/8L2EIdo=",
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "rev": "2075416fcb47225d9b68ac469a5c4801a9c4dd85",
-        "type": "github"
-      },
-      "original": {
-        "owner": "nix-community",
-        "repo": "nixpkgs.lib",
-        "type": "github"
-      }
-    },
     "root": {
       "inputs": {
         "flake-parts": "flake-parts",
-        "nixpkgs": "nixpkgs"
+        "nix2flatpak": "nix2flatpak",
+        "nixpkgs": "nixpkgs_2"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
       }
     }
   },

flake.nix

@@ -2,8 +2,10 @@
   description = "Nexus Flutter Flake";
 
   inputs = {
+    self.submodules = true;
     nixpkgs.url = "github:nixos/nixpkgs/nixos-unstable";
     flake-parts.url = "github:hercules-ci/flake-parts";
+    nix2flatpak.url = "github:neobrain/nix2flatpak";
   };
 
   outputs =
@@ -38,29 +40,37 @@
             };
           };
 
-          devShells =
+          packages =
             let
-              packages = with pkgs; [
-                go
-                git
-              ];
-
-              env = {
-                LIBCLANG_PATH = lib.makeLibraryPath [ pkgs.libclang ];
-                LD_LIBRARY_PATH = "./build/native_assets/linux:${lib.makeLibraryPath [ pkgs.zlib ]}";
-                CPATH = lib.makeSearchPath "include" [ pkgs.glibc.dev ];
+              default = pkgs.callPackage ./linux/nix/pkg {
+                src = self;
               };
             in
             {
-              default = pkgs.mkShell {
-                inherit env;
-                packages = packages ++ [
-                  pkgs.flutter
-                ];
+              inherit default;
+
+              flatpak = inputs.nix2flatpak.lib.${system}.mkFlatpak {
+                appName = "Nexus";
+                developer = "QuadRadical";
+                appId = "nexus.federated.Nexus";
+                package = default;
+                runtime = "org.gnome.Platform/49";
+                permissions = {
+                  share = [ "network" ];
+                  sockets = [
+                    "fallback-x11"
+                    "wayland"
+                  ];
+                  devices = [ "dri" ];
+                };
               };
 
-              nix = pkgs.mkShell { inherit packages env; };
+              gomuks = pkgs.callPackage ./linux/nix/pkg/gomuks.nix {
+                src = self;
+              };
             };
+
+          devShells.default = pkgs.callPackage ./linux/nix/devshell.nix { };
         };
     };
 }

gomuks

@@ -0,0 +1 @@
+Subproject commit 819f5d69f068ddedb08fe732f50570e33dd19e0f

hook/build.dart

@@ -3,9 +3,7 @@ import "package:hooks/hooks.dart";
 import "package:code_assets/code_assets.dart";
 
 Future<void> main(List<String> args) => build(args, (input, output) async {
-  final buildDir = input.packageRoot.resolve("src/");
-  if (await File(buildDir.resolve("lock").toFilePath()).exists()) return;
-
+  if (!input.config.buildCodeAssets) return;
   final codeConfig = input.config.code;
   final targetOS = codeConfig.targetOS;
   final targetArch = codeConfig.targetArchitecture;
@@ -27,10 +25,11 @@ Future<void> main(List<String> args) => build(args, (input, output) async {
 
       final targetNdkApi = codeConfig.android.targetNdkApi;
 
-      final ndkHome = Platform.environment["ANDROID_NDK_HOME"]
-          ?? Platform.environment["ANDROID_NDK_ROOT"]
-          ?? Platform.environment["NDK_HOME"]
-          ?? await _findNdkFromSdk();
+      final ndkHome =
+          Platform.environment["ANDROID_NDK_HOME"] ??
+          Platform.environment["ANDROID_NDK_ROOT"] ??
+          Platform.environment["NDK_HOME"] ??
+          await _findNdkFromSdk();
       if (ndkHome == null) {
         throw Exception(
           "Could not find Android NDK. Set ANDROID_NDK_HOME or install via sdkmanager.",
@@ -39,37 +38,43 @@ Future<void> main(List<String> args) => build(args, (input, output) async {
 
       final hostTag = _ndkHostTag();
       final (goArch, ccTriple) = _androidArch(targetArch);
-      final cc = "$ndkHome/toolchains/llvm/prebuilt/$hostTag/bin/$ccTriple$targetNdkApi-clang";
+      final cc =
+          "$ndkHome/toolchains/llvm/prebuilt/$hostTag/bin/$ccTriple$targetNdkApi-clang";
 
-      env = {
-        "CGO_ENABLED": "1",
-        "GOOS": "android",
-        "GOARCH": goArch,
-        "CC": cc,
-      };
+      env = {"CGO_ENABLED": "1", "GOOS": "android", "GOARCH": goArch, "CC": cc};
       break;
     default:
       throw UnsupportedError("Unsupported OS: $targetOS");
   }
 
-  final gomuksBuildDir = buildDir.resolve("gomuks/");
-  final libFile = gomuksBuildDir.resolve("${targetArch.name}/$libFileName");
+  var libFile = input.packageRoot.resolve(libFileName);
+  final gomuksBuildDir = input.packageRoot.resolve("gomuks/");
 
-  // goheif/dav1d supported on Android would need to fix upstream
-  final tags = targetOS == OS.android ? "goolm,noheic" : "goolm";
+  if (!(await File.fromUri(libFile).exists())) {
+    final buildDir = input.packageRoot.resolve("build/");
+    libFile = buildDir.resolve("${targetArch.name}/$libFileName");
 
-  print("Building Gomuks shared library $libFileName (${targetOS.name}/${targetArch.name}) from source...");
-  final result = await Process.run("go", [
-    "build",
-    "-tags", tags,
-    "-o",
-    libFile.path,
-    "-buildmode=c-shared",
-  ], workingDirectory: gomuksBuildDir.resolve("source/pkg/ffi/").toFilePath(),
-     environment: env.isNotEmpty ? env : null);
+    // goheif/dav1d supported on Android would need to fix upstream
+    final tags = [
+      "sqlite_fts5",
+      "goolm",
+      if (targetOS == OS.android) "noheic",
+    ].join(",");
+    print(
+      "Building Gomuks shared library $libFileName (${targetOS.name}/${targetArch.name}) to ${libFile.path}...",
+    );
+    final result = await Process.run(
+      "go",
+      ["build", "-tags", tags, "-o", libFile.path, "-buildmode=c-shared"],
+      workingDirectory: gomuksBuildDir.resolve("pkg/ffi/").toFilePath(),
+      environment: env.isNotEmpty ? env : null,
+    );
 
-  if (result.exitCode != 0) {
-    throw Exception("Failed to build Gomuks shared library\n${result.stderr}");
+    if (result.exitCode != 0) {
+      throw Exception(
+        "Failed to build Gomuks shared library\n${result.stderr}",
+      );
+    }
   }
 
   final generatedFile = "src/third_party/gomuks.g.dart";
@@ -90,8 +95,9 @@ Future<void> main(List<String> args) => build(args, (input, output) async {
 
 Future<String?> _findNdkFromSdk() async {
   // pretty sure this wont be needed with nix, i'll get this removed
-  final androidHome = Platform.environment["ANDROID_HOME"]
-      ?? Platform.environment["ANDROID_SDK_ROOT"];
+  final androidHome =
+      Platform.environment["ANDROID_HOME"] ??
+      Platform.environment["ANDROID_SDK_ROOT"];
   if (androidHome == null) return null;
   final ndkDir = Directory("$androidHome/ndk");
   if (!await ndkDir.exists()) return null;

ios/Runner.xcodeproj/project.pbxproj

@@ -387,7 +387,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = nexus.federated.nexus;
+				PRODUCT_BUNDLE_IDENTIFIER = nexus.federated.Nexus;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;
@@ -519,7 +519,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = nexus.federated.nexus;
+				PRODUCT_BUNDLE_IDENTIFIER = nexus.federated.Nexus;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
@@ -545,7 +545,7 @@
 					"$(inherited)",
 					"@executable_path/Frameworks",
 				);
-				PRODUCT_BUNDLE_IDENTIFIER = nexus.federated.nexus;
+				PRODUCT_BUNDLE_IDENTIFIER = nexus.federated.Nexus;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				SWIFT_OBJC_BRIDGING_HEADER = "Runner/Runner-Bridging-Header.h";
 				SWIFT_VERSION = 5.0;

lib/controllers/account_data_controller.dart

@@ -4,10 +4,10 @@ import "package:nexus/models/account_data.dart";
 
 class AccountDataController extends Notifier<IMap<String, AccountData>> {
   @override
-  IMap<String, AccountData> build() => const IMap.empty();
+  IMap<String, AccountData> build() => .new();
 
   void update(IMap<String, AccountData> newData) =>
-      state = IMap({...state.unlock, ...newData.unlock});
+      state = .new({...state.unlock, ...newData.unlock});
 
   static final provider =
       NotifierProvider<AccountDataController, IMap<String, AccountData>>(

lib/controllers/author_controller.dart

@@ -1,44 +1,30 @@
 import "dart:async";
-import "package:collection/collection.dart";
-import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/controllers/members_controller.dart";
-import "package:nexus/models/configs/author_config.dart";
-import "package:nexus/models/membership.dart";
+import "package:nexus/controllers/user_controller.dart";
+import "package:nexus/models/content/membership.dart";
+import "package:nexus/models/event.dart";
 
-class AuthorController extends AsyncNotifier<Membership> {
-  final AuthorConfig config;
-  AuthorController(this.config);
+class AuthorController extends AsyncNotifier<MembershipContent> {
+  final Event event;
+  AuthorController(this.event);
 
   @override
-  Future<Membership> build() async {
-    var member = await ref.watch(
-      MembersController.provider(config.room).selectAsync(
-        (value) => value.firstWhereOrNull(
-          (membership) => membership.userId == config.message.authorId,
-        ),
-      ),
+  Future<MembershipContent> build() async {
+    final member = await ref.watch(
+      UserController.provider(
+        .new(roomId: event.roomId, userId: event.sender),
+      ).future,
     );
 
-    final pmp = config.message.metadata?["pmp"] == null
-        ? null
-        : Membership.fromContent(
-            IMap(config.message.metadata?["pmp"]),
-            config.message.authorId,
-          );
-
-    return Membership(
-      avatarUrl: pmp?.avatarUrl ?? member?.avatarUrl,
-      displayName:
-          pmp?.displayName ??
-          member?.displayName ??
-          config.message.authorId.substring(1).split(":").first,
-      userId: config.message.authorId,
+    return .new(
+      status: member.status,
+      avatarUrl: event.pmp?.avatarUrl ?? member.avatarUrl,
+      displayName: event.pmp?.displayName ?? member.displayName,
     );
   }
 
-  static final provider = AsyncNotifierProvider.family
-      .autoDispose<AuthorController, Membership, AuthorConfig>(
+  static final provider =
+      AsyncNotifierProvider.family<AuthorController, MembershipContent, Event>(
         AuthorController.new,
       );
 }

lib/controllers/client_controller.dart

@@ -1,8 +1,7 @@
-import "dart:developer";
 import "dart:ffi";
 import "dart:io";
 import "dart:isolate";
-import "package:collection/collection.dart";
+import "dart:math";
 import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:ffi/ffi.dart";
 import "package:flutter/foundation.dart";
@@ -14,7 +13,7 @@ import "package:nexus/controllers/space_edges_controller.dart";
 import "package:nexus/controllers/sync_status_controller.dart";
 import "package:nexus/controllers/top_level_spaces_controller.dart";
 import "package:nexus/helpers/extensions/gomuks_buffer.dart";
-import "package:nexus/models/client_state.dart";
+import "package:nexus/main.dart";
 import "package:nexus/models/event.dart";
 import "package:nexus/models/paginate.dart";
 import "package:nexus/models/requests/get_event_request.dart";
@@ -26,10 +25,11 @@ import "package:nexus/models/profile.dart";
 import "package:nexus/models/requests/paginate_request.dart";
 import "package:nexus/models/requests/redact_event_request.dart";
 import "package:nexus/models/requests/report_request.dart";
+import "package:nexus/models/requests/send_event_request.dart";
 import "package:nexus/models/requests/send_message_request.dart";
+import "package:nexus/models/requests/set_membership_request.dart";
 import "package:nexus/models/room.dart";
 import "package:nexus/models/sync_data.dart";
-import "package:nexus/models/sync_status.dart";
 import "package:nexus/src/third_party/gomuks.g.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:path_provider/path_provider.dart";
@@ -64,15 +64,27 @@ class ClientController extends AsyncNotifier<int> {
               case "client_state":
                 ref
                     .watch(ClientStateController.provider.notifier)
-                    .set(ClientState.fromJson(decodedMuksEvent));
+                    .set(.fromJson(decodedMuksEvent));
                 break;
               case "sync_status":
                 ref
                     .watch(SyncStatusController.provider.notifier)
-                    .set(SyncStatus.fromJson(decodedMuksEvent));
+                    .set(.fromJson(decodedMuksEvent));
                 break;
               case "init_complete":
                 ref.watch(InitCompleteController.provider.notifier).complete();
+                break;
+              case "send_complete":
+                final event = Event.fromJson(decodedMuksEvent["event"]);
+                ref
+                    .watch(RoomsController.provider.notifier)
+                    .update(
+                      .new({
+                        event.roomId: .new(events: .new({event.rowId: event})),
+                      }),
+                      .new(),
+                    );
+
                 break;
               case "sync_complete":
                 final syncData = SyncData.fromJson(decodedMuksEvent);
@@ -112,8 +124,12 @@ class ClientController extends AsyncNotifier<int> {
             }
             debugPrint("Finished handling $muksEventType...");
           } catch (error, stackTrace) {
-            debugger();
-            debugPrintStack(stackTrace: stackTrace, label: error.toString());
+            if (kDebugMode) {
+              debugPrintStack(stackTrace: stackTrace, label: error.toString());
+              rethrow;
+            } else {
+              showError(error, stackTrace);
+            }
           }
         });
 
@@ -150,15 +166,18 @@ class ClientController extends AsyncNotifier<int> {
   Future<void> redactEvent(RedactEventRequest report) =>
       _sendCommand("redact_event", report.toJson());
 
-  Future<void> sendMessage(SendMessageRequest request) =>
-      _sendCommand("send_message", request.toJson());
+  Future<Event> sendMessage(SendMessageRequest request) async =>
+      Event.fromJson(await _sendCommand("send_message", request.toJson()));
 
-  Future<bool> verify(String recoveryKey) async {
+  Future<Event> sendEvent(SendEventRequest request) async =>
+      Event.fromJson(await _sendCommand("send_event", request.toJson()));
+
+  Future<String?> verify(String recoveryKey) async {
     try {
       await _sendCommand("verify", {"recovery_key": recoveryKey});
-      return true;
+      return null;
     } catch (error) {
-      return false;
+      return error.toString();
     }
   }
 
@@ -183,9 +202,15 @@ class ClientController extends AsyncNotifier<int> {
   // }));
 
   Future<IList<Event>> getRoomState(GetRoomStateRequest request) async {
-    final response =
-        (await _sendCommand("get_room_state", request.toJson())) as List;
-    return response.map((event) => Event.fromJson(event)).toIList();
+    Future<List?> getState(GetRoomStateRequest request) async =>
+        (await _sendCommand("get_room_state", request.toJson())) as List?;
+    final response = await getState(request);
+
+    return .new(
+      (response ?? await getState(request.copyWith(refetch: true)) ?? []).map(
+        (event) => .fromJson(event),
+      ),
+    );
   }
 
   Future<IList<Event>?> getRelatedEvents(
@@ -193,32 +218,31 @@ class ClientController extends AsyncNotifier<int> {
   ) async {
     final response =
         (await _sendCommand("get_related_events", request.toJson())) as List?;
-    return response?.map((event) => Event.fromJson(event)).toIList();
+    return .new(response?.map((event) => .fromJson(event)));
   }
 
   Future<Event?> getEvent(GetEventRequest request) async {
-    final event = request.room.events.firstWhereOrNull(
-      (event) => event.eventId == request.eventId,
-    );
-    if (event != null) return event;
-
     final json = await _sendCommand("get_event", request.toJson());
-    return json == null ? null : Event.fromJson(json);
+    return json == null ? null : .fromJson(json);
   }
 
   Future<Paginate> paginate(PaginateRequest request) async =>
-      Paginate.fromJson(await _sendCommand("paginate", request.toJson()));
+      .fromJson(await _sendCommand("paginate", request.toJson()));
 
-  Future<Profile> getProfile(String userId) async =>
-      Profile.fromJson(await _sendCommand("get_profile", {"user_id": userId}));
+  Future<Profile> getProfile(String userId) async {
+    final json = await _sendCommand("get_profile", {"user_id": userId});
+    return .fromJsonWithCatch({...json, "id": userId});
+  }
 
-  Future<void> reportEvent(ReportRequest report) =>
-      _sendCommand("report_event", report.toJson());
+  Future<void> reportEvent(ReportRequest request) =>
+      _sendCommand("report_event", request.toJson());
+
+  Future<void> setMembership(SetMembershipRequest request) =>
+      _sendCommand("set_membership", request.toJson());
 
   Future<void> markRead(Room room) async {
-    final event = room.events.firstWhereOrNull(
-      (event) => event.rowId == room.timeline.last.eventRowId,
-    );
+    final eventRowId = room.timeline[room.timeline.keys.reduce(max)];
+    final event = eventRowId == null ? null : room.events[eventRowId];
     if (event == null || room.metadata == null) return;
 
     await _sendCommand("mark_read", {
@@ -228,21 +252,21 @@ class ClientController extends AsyncNotifier<int> {
     });
   }
 
-  Future<bool> login(LoginRequest login) async {
+  Future<String?> login(LoginRequest login) async {
     try {
       await _sendCommand("login", login.toJson());
-      return true;
+      return null;
     } catch (error) {
-      return false;
+      return error.toString();
     }
   }
 
-  Future<String?> discoverHomeserver(Uri homeserver) async {
+  Future<Uri?> discoverHomeserver(Uri homeserver) async {
     try {
       final response = await _sendCommand("discover_homeserver", {
-        "user_id": "@fakeuser:${homeserver.host}",
+        "user_id": "@fake-user:${homeserver.host}",
       });
-      return response["m.homeserver"]?["base_url"];
+      return Uri.parse(response["m.homeserver"]?["base_url"]);
     } catch (error) {
       return null;
     }

lib/controllers/client_state_controller.dart

@@ -5,9 +5,7 @@ class ClientStateController extends Notifier<ClientState?> {
   @override
   Null build() => null;
 
-  void set(ClientState newState) {
-    state = newState;
-  }
+  void set(ClientState newState) => state = newState;
 
   static final provider = NotifierProvider<ClientStateController, ClientState?>(
     ClientStateController.new,

lib/controllers/cross_cache_controller.dart

@@ -2,11 +2,8 @@ import "package:cross_cache/cross_cache.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 
 class CrossCacheController extends Notifier<CrossCache> {
-  static const String spaceKey = "space";
-  static const String roomKey = "room";
-
   @override
-  CrossCache build() => CrossCache();
+  CrossCache build() => .new();
 
   static final provider = NotifierProvider<CrossCacheController, CrossCache>(
     CrossCacheController.new,

lib/controllers/emoji_controller.dart

@@ -0,0 +1,84 @@
+import "dart:convert";
+import "package:emoji_text_field/models/emoji_category.dart";
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter/material.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:http/http.dart";
+import "package:nexus/models/emoji.dart";
+
+typedef EmojiTuple = (IMap<String, EmojiCategory>, IMap<String, List<String>>);
+
+class EmojiController extends AsyncNotifier<EmojiTuple> {
+  @override
+  Future<EmojiTuple> build() async {
+    final response = await get(
+      .https("github.com", "github/gemoji/raw/refs/heads/master/db/emoji.json"),
+    );
+
+    if (response.statusCode != 200) {
+      throw Exception("Failed to load emoji data");
+    }
+
+    final data = json.decode(response.body);
+
+    final entries = (data as List)
+        .cast<Map<String, dynamic>>()
+        .map(Emoji.fromJson)
+        .toIList();
+
+    final categoryMap = entries.fold<IMap<String, IList<String>>>(
+      .new(),
+      (acc, entry) => acc.update(
+        entry.category,
+        (list) => list.add(entry.emoji),
+        ifAbsent: () => .new([entry.emoji]),
+      ),
+    );
+
+    final keywordMap = entries.fold<IMap<String, IList<String>>>(
+      .new(),
+      (acc, entry) => acc.add(
+        entry.emoji,
+        .new([...entry.tags, ...entry.aliases, entry.description]),
+      ),
+    );
+
+    final customCategories = IMap.fromEntries(
+      categoryMap.entries.map(
+        (entry) => MapEntry(
+          entry.key,
+          EmojiCategory(
+            name: entry.key,
+            icon: switch (entry.key) {
+              "Smileys & Emotion" => Icons.emoji_emotions,
+              "People & Body" => Icons.emoji_people,
+              "Animals & Nature" => Icons.emoji_nature,
+              "Food & Drink" => Icons.emoji_food_beverage,
+              "Travel & Places" => Icons.travel_explore,
+              "Activities" => Icons.sports_soccer,
+              "Objects" => Icons.emoji_objects,
+              "Symbols" => Icons.emoji_symbols,
+              "Flags" => Icons.emoji_flags,
+              _ => Icons.category,
+            },
+            emojis: entry.value.toList(growable: false),
+          ),
+        ),
+      ),
+    );
+
+    final customKeywords = IMap(
+      .fromEntries(
+        keywordMap.entries.map(
+          (e) => .new(e.key, e.value.toList(growable: false)),
+        ),
+      ),
+    );
+
+    return (customCategories, customKeywords);
+  }
+
+  static final provider = AsyncNotifierProvider<EmojiController, EmojiTuple>(
+    EmojiController.new,
+  );
+}

lib/controllers/event_controller.dart

@@ -1,5 +1,7 @@
+import "package:collection/collection.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/client_controller.dart";
+import "package:nexus/controllers/rooms_controller.dart";
 import "package:nexus/models/event.dart";
 import "package:nexus/models/requests/get_event_request.dart";
 
@@ -9,8 +11,18 @@ class EventController extends AsyncNotifier<Event?> {
 
   @override
   Future<Event?> build() async {
-    final client = ref.watch(ClientController.provider.notifier);
-    return await client.getEvent(request).onError((_, _) => null);
+    final room = ref.watch(
+      RoomsController.provider.select((value) => value[request.roomId]),
+    );
+    final event = room?.events.values.firstWhereOrNull(
+      (event) => event.eventId == request.eventId,
+    );
+
+    return event ??
+        await ref
+            .watch(ClientController.provider.notifier)
+            .getEvent(request)
+            .onError((_, _) => null);
   }
 
   static final provider = AsyncNotifierProvider.family

lib/controllers/key_controller.dart

@@ -12,14 +12,14 @@ class KeyController extends Notifier<String?> {
   String? build() =>
       ref.watch(SharedPrefsController.provider).requireValue.getString(key);
 
-  Future<void> set(String? id) async {
+  Future<void> set(String? value) async {
     final prefs = ref.watch(SharedPrefsController.provider).requireValue;
-    state = id;
+    state = value;
 
-    if (id == null) {
+    if (value == null) {
       prefs.remove(key);
     } else {
-      prefs.setString(key, id);
+      prefs.setString(key, value);
     }
   }
 

lib/controllers/members_by_status_controller.dart

@@ -0,0 +1,32 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/members_controller.dart";
+import "package:nexus/models/configs/members_by_status_config.dart";
+import "package:nexus/models/content/membership.dart";
+import "package:nexus/models/event.dart";
+
+class MembersByStatusController extends AsyncNotifier<ISet<Event>> {
+  final MembersByStatusConfig config;
+  MembersByStatusController(this.config);
+
+  @override
+  Future<ISet<Event>> build() => ref.watch(
+    MembersController.provider(config.roomId).selectAsync(
+      (members) => members
+          .where(
+            (membership) => switch (membership.content) {
+              MembershipContent(:final status) => config.status == status,
+              _ => false,
+            },
+          )
+          .toISet(),
+    ),
+  );
+
+  static final provider =
+      AsyncNotifierProvider.family<
+        MembersByStatusController,
+        ISet<Event>,
+        MembersByStatusConfig
+      >(MembersByStatusController.new);
+}

lib/controllers/members_controller.dart

@@ -1,39 +1,46 @@
 import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:nexus/controllers/client_controller.dart";
-import "package:nexus/models/membership.dart";
+import "package:nexus/controllers/rooms_controller.dart";
+import "package:nexus/models/content/content.dart";
+import "package:nexus/models/event.dart";
 import "package:nexus/models/requests/get_room_state_request.dart";
-import "package:nexus/models/room.dart";
 
-class MembersController extends AsyncNotifier<IList<Membership>> {
-  final Room room;
-  MembersController(this.room);
+class MembersController extends AsyncNotifier<ISet<Event>> {
+  final String roomId;
+  MembersController(this.roomId);
 
   @override
-  Future<IList<Membership>> build() async {
-    if (room.metadata == null) return const IList.empty();
+  Future<ISet<Event>> build() async {
+    final room = ref.watch(
+      RoomsController.provider.select((value) => value[roomId]),
+    );
 
-    final state = await ref
-        .watch(ClientController.provider.notifier)
-        .getRoomState(
-          GetRoomStateRequest(
-            roomId: room.metadata!.id,
-            fetchMembers: room.metadata!.hasMemberList == false,
-            includeMembers: true,
-          ),
-        );
+    if (room == null) return .new();
 
-    return state.nonNulls
-        .where((member) => member.content["membership"] == "join")
-        .map(
-          (membership) =>
-              Membership.fromContent(membership.content, membership.stateKey!),
-        )
-        .toIList();
+    if (!room.hasFetchedMembers) {
+      final fetchedState = await ref
+          .watch(ClientController.provider.notifier)
+          .getRoomState(
+            GetRoomStateRequest(
+              roomId: roomId,
+              fetchMembers: !(room.metadata?.hasMemberList ?? false),
+              includeMembers: true,
+            ),
+          );
+
+      await ref
+          .read(RoomsController.provider.notifier)
+          .addState(roomId, fetchedState, isMembers: true);
+    }
+
+    return room.state[EventType.membership.type]?.values
+            .map((rowId) => room.events[rowId])
+            .nonNulls
+            .toISet() ??
+        .new();
   }
 
-  static final provider =
-      AsyncNotifierProvider.family<MembersController, IList<Membership>, Room>(
-        MembersController.new,
-      );
+  static final provider = AsyncNotifierProvider.autoDispose
+      .family<MembersController, ISet<Event>, String>(MembersController.new);
 }

lib/controllers/members_grouped_controller.dart

@@ -0,0 +1,64 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/members_by_status_controller.dart";
+import "package:nexus/controllers/room_creators_controller.dart";
+import "package:nexus/controllers/rooms_controller.dart";
+import "package:nexus/models/configs/members_by_status_config.dart";
+import "package:nexus/models/content/content.dart";
+import "package:nexus/models/content/power_levels.dart";
+import "package:nexus/models/event.dart";
+
+class MembersGroupedController
+    extends AsyncNotifier<IList<MapEntry<int?, ISet<Event>>>> {
+  final MembersByStatusConfig config;
+  MembersGroupedController(this.config);
+
+  @override
+  Future<IList<MapEntry<int?, ISet<Event>>>> build() async {
+    final room = ref.watch(
+      RoomsController.provider.select((value) => value[config.roomId]),
+    );
+
+    final roomCreators = room == null
+        ? null
+        : ref.watch((RoomCreatorsController.provider(room)));
+
+    final powerLevelsRowId = room?.state[EventType.powerLevels.type]?[""];
+    final powerLevelsEvent = powerLevelsRowId == null
+        ? null
+        : room?.events[powerLevelsRowId];
+
+    final content = switch (powerLevelsEvent?.content) {
+      PowerLevelsContent content => content,
+      _ => PowerLevelsContent(),
+    };
+
+    final members = await ref.watch(
+      MembersByStatusController.provider(config).future,
+    );
+
+    return members
+        .fold<IMap<int?, ISet<Event>>>(.new(), (result, event) {
+          final groupKey = roomCreators?.contains(event.stateKey!) == true
+              ? null
+              : content.users[event.stateKey!] ?? content.usersDefault;
+
+          return result.update(
+            groupKey,
+            (value) => value.add(event),
+            ifAbsent: () => .new({event}),
+          );
+        })
+        .toEntryIList(
+          compare: (a, b) =>
+              (b?.key ?? double.infinity).compareTo(a?.key ?? double.infinity),
+        );
+  }
+
+  static final provider =
+      AsyncNotifierProvider.family<
+        MembersGroupedController,
+        IList<MapEntry<int?, ISet<Event>>>,
+        MembersByStatusConfig
+      >(MembersGroupedController.new);
+}

lib/controllers/message_controller.dart

@@ -1,195 +0,0 @@
-import "package:collection/collection.dart";
-import "package:flutter_chat_core/flutter_chat_core.dart";
-import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/controllers/client_state_controller.dart";
-import "package:nexus/helpers/extensions/mxc_to_https.dart";
-import "package:nexus/models/configs/message_config.dart";
-
-class MessageController extends AsyncNotifier<Message?> {
-  final MessageConfig config;
-  MessageController(this.config);
-
-  @override
-  Future<Message?> build() async {
-    try {
-      if (config.event.relationType == "m.replace" && !config.includeEdits) {
-        return null;
-      }
-
-      if (!ref.mounted) return null;
-      final event = config.event.lastEditRowId == null
-          ? config.event
-          : config.room.events.firstWhereOrNull(
-                  (e) => e.rowId == config.event.lastEditRowId,
-                ) ??
-                config.event;
-
-      if (!ref.mounted) return null;
-
-      final content = (event.decrypted ?? event.content);
-      final type = (config.event.decryptedType ?? config.event.type);
-      final newContent = content["m.new_content"] as Map?;
-
-      final homeserver = ref
-          .read(ClientStateController.provider)
-          ?.homeserverUrl;
-      final source = homeserver == null || content["url"] == null
-          ? "null"
-          : Uri.parse(content["url"]).mxcToHttps(homeserver).toString();
-
-      final metadata = {
-        "body": config.event.redactedBy == null
-            ? (newContent?["body"] ?? content["body"] ?? "")
-            : "Deleted Message",
-        "flashing": false,
-        "timelineId": event.timelineRowId,
-        "big": event.localContent?.bigEmoji == true,
-        "eventType": type,
-        "pmp": event.content["com.beeper.per_message_profile"],
-        "editSource":
-            event.localContent?.editSource ??
-            newContent?["body"] ??
-            content["body"],
-        "txnId": config.event.transactionId,
-      };
-
-      if (!ref.mounted) return null;
-
-      final editedAt = event.relationType == "m.replace"
-          ? event.timestamp
-          : null;
-
-      if ((event.redactedBy != null && !config.alwaysReturn) ||
-          (!config.includeEdits &&
-              (config.event.relationType == "m.replace"))) {
-        return null;
-      }
-
-      // TODO: Use server-generated preview if enabled
-
-      // final match = Uri.tryParse(
-      //   RegExp(regexLink, caseSensitive: false).firstMatch(body)?.group(0) ?? "",
-      // );
-
-      final replyId =
-          config.event.content["m.relates_to"]?["m.in_reply_to"]?["event_id"];
-
-      final asText =
-          Message.text(
-                metadata: metadata,
-                id: config.event.eventId,
-                authorId: event.authorId,
-                text:
-                    newContent?["formatted_body"] ??
-                    newContent?["body"] ??
-                    content["formatted_body"] ??
-                    content["body"] ??
-                    "",
-                replyToMessageId: replyId,
-                deliveredAt: config.event.timestamp,
-                editedAt: editedAt,
-              )
-              as TextMessage;
-
-      return switch (type) {
-        "m.room.encrypted" => asText.copyWith(
-          text: "Unable to decrypt message.",
-          metadata: {...metadata, "body": "Unable to decrypt message."},
-        ),
-        // "org.matrix.msc3381.poll.start" => Message.custom(
-        //   metadata: {
-        //     ...metadata,
-        //     "poll": event.parsedPollEventContent.pollStartContent,
-        //     "responses": event.getPollResponses(timeline),
-        //   },
-        //   id: eventId,
-        //   deliveredAt: originServerTs,
-        //   authorId: senderId,
-        // ),
-        ("m.sticker" || "m.room.message") => switch (content["msgtype"]) {
-          null || "m.image" => Message.image(
-            id: config.event.eventId,
-            authorId: event.authorId,
-            source: source,
-            replyToMessageId: replyId,
-            metadata: metadata,
-            text: asText.text,
-            deliveredAt: config.event.timestamp,
-            blurhash: (content["info"] as Map?)?["xyz.amorgan.blurhash"],
-          ),
-          "m.audio" || "m.file" => Message.file(
-            name: content["filename"].toString(),
-            size: content["info"]["size"],
-            metadata: metadata,
-            id: config.event.eventId,
-            authorId: event.authorId,
-            source: source,
-            replyToMessageId: replyId,
-            deliveredAt: config.event.timestamp,
-          ),
-          _ => asText,
-        },
-        "m.room.member" =>
-          content["membership"] == event.unsigned["prev_content"]?["membership"]
-              ? null
-              : Message.system(
-                  metadata: {
-                    ...metadata,
-                    "body":
-                        "${content["displayname"] ?? event.stateKey} ${switch (content["membership"]) {
-                          "invite" => "was invited to",
-                          "join" => "joined",
-                          "leave" => "left",
-                          "knock" => "asked to join",
-                          "ban" => "was banned from",
-                          _ => "did something relating to",
-                        }} the room.",
-                  },
-                  id: config.event.eventId,
-                  authorId: event.authorId,
-                  deliveredAt: config.event.timestamp,
-                  text:
-                      "${content["displayname"] ?? event.stateKey} ${switch (content["membership"]) {
-                        "invite" => "was invited to",
-                        "join" => "joined",
-                        "leave" => "left",
-                        "knock" => "asked to join",
-                        "ban" => "was banned from",
-                        _ => "did something relating to",
-                      }} the room.",
-                ),
-
-        "m.room.redaction" =>
-          config.alwaysReturn
-              ? asText.copyWith(
-                  metadata: {
-                    ...(asText.metadata ?? {}),
-                    "body": "Deleted Message",
-                  },
-                )
-              : null,
-        _ =>
-          config.alwaysReturn
-              ? asText
-              : (
-                // Turn this on for debugging purposes
-                false
-                    // ignore: dead_code
-                    ? Message.unsupported(
-                        metadata: metadata,
-                        id: config.event.eventId,
-                        authorId: event.authorId,
-                        replyToMessageId: replyId,
-                      )
-                    : null),
-      };
-    } catch (error) {
-      return null;
-    }
-  }
-
-  static final provider = AsyncNotifierProvider.family
-      .autoDispose<MessageController, Message?, MessageConfig>(
-        MessageController.new,
-      );
-}

lib/controllers/messages_controller.dart

@@ -1,27 +0,0 @@
-import "package:fast_immutable_collections/fast_immutable_collections.dart";
-import "package:flutter_chat_core/flutter_chat_core.dart";
-import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/controllers/message_controller.dart";
-import "package:nexus/models/configs/message_config.dart";
-import "package:nexus/models/configs/messages_config.dart";
-
-class MessagesController extends AsyncNotifier<IList<Message>> {
-  final MessagesConfig config;
-  MessagesController(this.config);
-
-  @override
-  Future<IList<Message>> build() async => (await Future.wait(
-    config.events.map(
-      (event) => ref.watch(
-        MessageController.provider(
-          MessageConfig(event: event, room: config.room),
-        ).future,
-      ),
-    ),
-  )).nonNulls.toIList();
-
-  static final provider = AsyncNotifierProvider.family
-      .autoDispose<MessagesController, IList<Message>, MessagesConfig>(
-        MessagesController.new,
-      );
-}

lib/controllers/multi_provider_controller.dart

@@ -7,9 +7,8 @@ class MultiProviderController extends AsyncNotifier<void> {
   final IList<AsyncNotifierProvider> providers;
 
   @override
-  FutureOr<void> build() async => await Future.wait(
-    providers.map((provider) => ref.watch(provider.future)),
-  );
+  Future<void> build() =>
+      .wait(providers.map((provider) => ref.watch(provider.future)));
 
   static final provider =
       AsyncNotifierProvider.family<

lib/controllers/new_events_controller.dart

@@ -1,18 +0,0 @@
-import "package:fast_immutable_collections/fast_immutable_collections.dart";
-import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/models/event.dart";
-
-class NewEventsController extends Notifier<IList<Event>> {
-  final String roomId;
-  NewEventsController(this.roomId);
-
-  @override
-  IList<Event> build() => const IList.empty();
-
-  void add(IList<Event> newEvents) => state = newEvents;
-
-  static final provider = NotifierProvider.autoDispose
-      .family<NewEventsController, IList<Event>, String>(
-        NewEventsController.new,
-      );
-}

lib/controllers/power_level_controller.dart

@@ -0,0 +1,81 @@
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/client_state_controller.dart";
+import "package:nexus/controllers/room_creators_controller.dart";
+import "package:nexus/controllers/rooms_controller.dart";
+import "package:nexus/models/configs/power_level_config.dart";
+import "package:nexus/models/content/content.dart";
+import "package:nexus/models/content/power_levels.dart";
+
+class PowerLevelController extends Notifier<bool> {
+  final PowerLevelConfig config;
+  PowerLevelController(this.config);
+
+  @override
+  bool build() {
+    if (config case EventPowerLevelConfig(:final eventType)) {
+      assert(
+        eventType != .redaction,
+        "Checking power level for a redaction should use [PowerLevelConfig.redaction].",
+      );
+    }
+
+    final room = ref.watch(
+      RoomsController.provider.select((value) => value[config.roomId]),
+    );
+
+    final roomCreators = room == null
+        ? null
+        : ref.watch(RoomCreatorsController.provider(room));
+
+    final eventRowId = room?.state[EventType.powerLevels.type]?[""];
+
+    final event = eventRowId == null ? null : room?.events[eventRowId];
+    final content = event?.content is PowerLevelsContent
+        ? event!.content
+        : PowerLevelsContent();
+
+    final user = ref.watch(
+      ClientStateController.provider.select((value) => value?.userId),
+    );
+    if (user == null || content is! PowerLevelsContent) return false;
+
+    double powerLevelOf(String userId) => roomCreators?.contains(userId) == true
+        ? double.infinity
+        : (content.users[userId] ?? content.usersDefault).toDouble();
+
+    final userLevel = powerLevelOf(user);
+
+    return switch (config) {
+      EventPowerLevelConfig(:final eventType) =>
+        userLevel >= (content.events[eventType.type] ?? content.eventsDefault),
+
+      MembershipActionPowerLevelConfig(:final action, :final targetUser) =>
+        switch (action) {
+          .invite => userLevel >= content.invite,
+
+          .kick =>
+            userLevel >= content.kick && userLevel > powerLevelOf(targetUser),
+
+          .ban =>
+            userLevel >= content.ban && userLevel > powerLevelOf(targetUser),
+
+          .unban => userLevel >= content.ban,
+        },
+
+      StatePowerLevelConfig(:final eventType) =>
+        userLevel >= (content.events[eventType.type] ?? content.stateDefault),
+
+      RedactionPowerLevelConfig(:final targetUser) =>
+        userLevel >=
+            (targetUser == user
+                ? (content.events[EventType.redaction.type] ??
+                      content.eventsDefault)
+                : content.redact),
+    };
+  }
+
+  static final provider = NotifierProvider.autoDispose
+      .family<PowerLevelController, bool, PowerLevelConfig>(
+        PowerLevelController.new,
+      );
+}

lib/controllers/profile_controller.dart

@@ -0,0 +1,17 @@
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/client_controller.dart";
+import "package:nexus/models/profile.dart";
+
+class ProfileController extends AsyncNotifier<Profile> {
+  final String userId;
+  ProfileController(this.userId);
+
+  @override
+  Future<Profile> build() {
+    final client = ref.watch(ClientController.provider.notifier);
+    return client.getProfile(userId);
+  }
+
+  static final provider = AsyncNotifierProvider.family
+      .autoDispose<ProfileController, Profile, String>(ProfileController.new);
+}

lib/controllers/reactions_controller.dart

@@ -0,0 +1,55 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/client_controller.dart";
+import "package:nexus/controllers/rooms_controller.dart";
+import "package:nexus/models/configs/reactions_config.dart";
+import "package:nexus/models/content/reaction.dart";
+
+class ReactionsController extends AsyncNotifier<IMap<String, IList<String>>> {
+  final ReactionsConfig config;
+  ReactionsController(this.config);
+
+  @override
+  Future<IMap<String, IList<String>>> build() async {
+    final eventInfo = ref.watch(
+      RoomsController.provider.select((value) {
+        final event = value[config.roomId]?.events[config.eventRowId];
+        return event == null ? null : (event.eventId, event.reactions);
+      }),
+    );
+
+    final reactionEvents = eventInfo?.$2.isNotEmpty == true
+        ? await ref
+              .watch(ClientController.provider.notifier)
+              .getRelatedEvents(
+                .new(
+                  roomId: config.roomId,
+                  eventId: eventInfo!.$1,
+                  relationType: "m.annotation",
+                ),
+              )
+        : null;
+
+    return reactionEvents
+            ?.where((event) => event.redactedBy == null)
+            .fold<IMap<String, IList<String>>>(.new(), (acc, event) {
+              if (event.content case ReactionContent(:final key?)) {
+                return acc.update(
+                  key,
+                  (list) => list.add(event.sender),
+                  ifAbsent: () => .new([event.sender]),
+                );
+              }
+
+              return acc;
+            }) ??
+        .new();
+  }
+
+  static final provider =
+      AsyncNotifierProvider.family<
+        ReactionsController,
+        IMap<String, IList<String>>,
+        ReactionsConfig
+      >(ReactionsController.new);
+}

lib/controllers/room_chat_controller.dart

@@ -1,182 +1,88 @@
 import "dart:async";
+import "dart:math";
 import "package:collection/collection.dart";
 import "package:fast_immutable_collections/fast_immutable_collections.dart";
-import "package:flutter_chat_core/flutter_chat_core.dart";
-import "package:flutter_chat_core/flutter_chat_core.dart" as chat;
 import "package:flutter_riverpod/flutter_riverpod.dart";
 import "package:fluttertagger/fluttertagger.dart";
 import "package:nexus/controllers/client_controller.dart";
-import "package:nexus/controllers/message_controller.dart";
-import "package:nexus/controllers/messages_controller.dart";
-import "package:nexus/controllers/new_events_controller.dart";
 import "package:nexus/controllers/rooms_controller.dart";
-import "package:nexus/models/configs/messages_config.dart";
-import "package:nexus/models/configs/message_config.dart";
-import "package:nexus/models/requests/get_room_state_request.dart";
-import "package:nexus/models/requests/paginate_request.dart";
+import "package:nexus/models/content/content.dart";
+import "package:nexus/models/content/reaction.dart";
+import "package:nexus/models/event.dart";
 import "package:nexus/models/requests/redact_event_request.dart";
 import "package:nexus/models/relation_type.dart";
 import "package:nexus/models/requests/send_message_request.dart";
 import "package:nexus/models/room.dart";
 
-class RoomChatController extends AsyncNotifier<InMemoryChatController> {
+class RoomChatController extends AsyncNotifier<IList<Event>?> {
   final String roomId;
   RoomChatController(this.roomId);
 
   @override
-  Future<InMemoryChatController> build() async {
+  Future<IList<Event>?> build() async {
     final client = ref.watch(ClientController.provider.notifier);
-    var room = ref.read(RoomsController.provider)[roomId];
-    if (room == null) return InMemoryChatController();
-
-    final state = await client.getRoomState(
-      GetRoomStateRequest(roomId: roomId),
+    final room = ref.watch(
+      RoomsController.provider.select((rooms) => rooms[roomId]),
     );
 
-    ref
-        .read(RoomsController.provider.notifier)
-        .update(
-          {
-            roomId: Room(
-              events: state,
-              state: state.fold(
-                const IMap.empty(),
-                (previousValue, stateEvent) => previousValue.add(
-                  stateEvent.type,
-                  (previousValue[stateEvent.type] ?? const IMap.empty()).addAll(
-                    IMap({
-                      if (stateEvent.stateKey != null)
-                        stateEvent.stateKey!: stateEvent.rowId,
-                    }),
-                  ),
-                ),
-              ),
-            ),
-          }.toIMap(),
-          const ISet.empty(),
-        );
+    if (room == null) return null;
 
-    room = ref.read(RoomsController.provider)[roomId];
-    if (room == null) return InMemoryChatController();
+    if (!room.hasFetchedState) {
+      final state = await client.getRoomState(.new(roomId: roomId));
 
-    final messages = await ref.watch(
-      MessagesController.provider(
-        MessagesConfig(
-          room: room,
-          events: room.timeline
-              .map(
-                (timelineRowTuple) => room!.events.firstWhereOrNull(
-                  (event) => event.rowId == timelineRowTuple.eventRowId,
-                ),
-              )
-              .nonNulls
-              .toIList(),
-        ),
-      ).future,
-    );
-    final controller = InMemoryChatController(messages: messages.toList());
-
-    ref.onDispose(
-      ref.listen(NewEventsController.provider(roomId), (_, next) async {
-        final controller = await future;
-        for (final event in next) {
-          if (event.type == "m.room.redaction") {
-            final controller = await future;
-            final message = controller.messages.firstWhereOrNull(
-              (message) => message.id == event.content["redacts"],
-            );
-            if (message == null || !ref.mounted) return;
-
-            await controller.removeMessage(message);
-          } else {
-            final message = await ref.watch(
-              MessageController.provider(
-                MessageConfig(event: event, room: room!, includeEdits: true),
-              ).future,
-            );
-            if (event.relationType == "m.replace") {
-              final controller = await future;
-              final oldMessage = controller.messages.firstWhereOrNull(
-                (element) => element.id == event.relatesTo,
-              );
-              if (oldMessage == null || message == null || !ref.mounted) return;
-
-              return await controller.updateMessage(
-                oldMessage,
-                message.copyWith(
-                  id: oldMessage.id,
-                  replyToMessageId: oldMessage.replyToMessageId,
-                  metadata: {
-                    ...(oldMessage.metadata ?? {}),
-                    ...(message.metadata ?? {})
-                        .toIMap()
-                        .where((key, value) => value != null)
-                        .unlock,
-                  },
-                ),
-              );
-            }
-            if (message != null &&
-                !controller.messages.any(
-                  (oldMessage) => oldMessage.id == message.id,
-                ) &&
-                ref.mounted) {
-              await controller.insertMessage(message);
-            }
-          }
-        }
-      }, weak: true).close,
-    );
-
-    ref.onDispose(controller.dispose);
-
-    // While there are under 20 messages, try up to two times to load more messages.
-    for (var i = 0; i < 2 && messages.length < 20; i++) {
-      await loadOlder(controller);
+      await ref.read(RoomsController.provider.notifier).addState(roomId, state);
     }
 
-    return controller;
+    // While there are under 20 events, try to load more
+    // until there's no more or the conditions are met.
+    if (room.hasMore && room.timeline.length < 20) {
+      loadOlder();
+    }
+
+    return room.timeline
+        .toEntryIList(compare: (a, b) => (a?.key ?? 0).compareTo(b?.key ?? 0))
+        .map((element) => element.value)
+        .toIList()
+        .addAll(room.sticky)
+        .map((entry) {
+          final foundEvent = entry == null ? null : room.events[entry];
+
+          final editedEvent =
+              foundEvent == null || foundEvent.lastEditRowId == 0
+              ? null
+              : room.events[foundEvent.lastEditRowId];
+
+          return editedEvent == null
+              ? foundEvent
+              : foundEvent?.copyWith(content: editedEvent.content);
+        })
+        .nonNulls
+        .toIList();
   }
 
-  Future<void> insertMessage(Message message) async {
-    final controller = await future;
-    final oldMessage = message.metadata?["txnId"] == null
-        ? null
-        : controller.messages.firstWhereOrNull(
-            (element) =>
-                element.metadata?["txnId"] == message.metadata?["txnId"],
-          );
+  Future<void> deleteMessage(Event event, {String? reason}) => ref
+      .watch(ClientController.provider.notifier)
+      .redactEvent(
+        RedactEventRequest(
+          eventId: event.eventId,
+          roomId: roomId,
+          reason: reason,
+        ),
+      );
 
-    return oldMessage == null
-        ? controller.insertMessage(message)
-        : controller.updateMessage(oldMessage, message);
-  }
-
-  Future<void> deleteMessage(Message message, {String? reason}) async {
-    final controller = await future;
-    await controller.removeMessage(message);
-    await ref
-        .watch(ClientController.provider.notifier)
-        .redactEvent(
-          RedactEventRequest(
-            eventId: message.id,
-            roomId: roomId,
-            reason: reason,
-          ),
-        );
-  }
-
-  Future<void> loadOlder([InMemoryChatController? chatController]) async {
+  Future<bool> loadOlder() async {
+    final timelineKeys = ref
+        .read(RoomsController.provider.select((value) => value[roomId]))
+        ?.timeline
+        .keys;
     final response = await ref
         .watch(ClientController.provider.notifier)
         .paginate(
-          PaginateRequest(
+          .new(
             roomId: roomId,
-            maxTimelineId: ref
-                .read(RoomsController.provider)[roomId]
-                ?.timeline
-                .firstOrNull
-                ?.timelineRowId,
+            maxTimelineId: timelineKeys?.isNotEmpty == true
+                ? timelineKeys?.reduce(min)
+                : null,
           ),
         );
 
@@ -185,51 +91,33 @@ class RoomChatController extends AsyncNotifier<InMemoryChatController> {
         .update(
           IMap({
             roomId: Room(
-              events: response.events.addAll(response.relatedEvents),
+              events: IMap.fromIterable(
+                response.events.addAll(response.relatedEvents),
+                keyMapper: (event) => event.rowId,
+                valueMapper: (event) => event,
+              ),
               hasMore: response.hasMore,
-              timeline: response.events
-                  .map(
-                    (event) => TimelineRowTuple(
-                      timelineRowId: event.timelineRowId,
-                      eventRowId: event.rowId,
-                    ),
-                  )
-                  .toIList(),
+              timeline: IMap.fromIterable(
+                response.events,
+                keyMapper: (event) => event.timelineRowId,
+                valueMapper: (event) => event.rowId,
+              ),
             ),
           }),
-          const ISet.empty(),
+          .new(),
         );
 
-    final room = ref.read(RoomsController.provider)[roomId];
-    if (room == null) return;
-
-    final messages = await ref.watch(
-      MessagesController.provider(
-        MessagesConfig(room: room, events: response.events.reversed),
-      ).future,
-    );
-
-    final controller = chatController ?? await future;
-    await controller.insertAllMessages(
-      messages
-          .where(
-            (newMessage) => !controller.messages.any(
-              (message) => message.id == newMessage.id,
-            ),
-          )
-          .toList(),
-      index: 0,
-    );
+    return response.hasMore;
   }
 
   Future<void> send(
-    String message, {
+    String text, {
     bool shouldMention = true,
-    required Iterable<Tag> tags,
+    required IList<Tag> tags,
     required RelationType relationType,
-    Message? relation,
+    Event? relation,
   }) async {
-    var taggedMessage = message;
+    var taggedMessage = text;
 
     for (final tag in tags) {
       final escaped = RegExp.escape(tag.id);
@@ -242,7 +130,7 @@ class RoomChatController extends AsyncNotifier<InMemoryChatController> {
     }
 
     final client = ref.watch(ClientController.provider.notifier);
-    client.sendMessage(
+    final event = await client.sendMessage(
       SendMessageRequest(
         roomId: roomId,
         mentions: Mentions(
@@ -250,50 +138,85 @@ class RoomChatController extends AsyncNotifier<InMemoryChatController> {
             if (shouldMention == true &&
                 relation != null &&
                 relationType == RelationType.reply)
-              relation.authorId,
+              relation.sender,
           ].toIList(),
           room: taggedMessage.contains("@room"),
         ),
         text: taggedMessage,
         relation: relation == null
             ? null
-            : Relation(eventId: relation.id, relationType: relationType),
-      ),
-    );
-  }
-
-  Future<chat.User> resolveUser(String id) async {
-    final user = await ref
-        .watch(ClientController.provider.notifier)
-        .getProfile(id);
-    return chat.User(
-      id: id,
-      name: user.displayName,
-      // imageSource: user.avatarUrl == null
-      //     ? null
-      //     : (await ref.watch(
-      //         AvatarController.provider(user.avatarUrl!.toString()).future,
-      //       )).toString(),
-    );
-  }
-
-  Future<void> scrollToMessage(Message message) async {
-    final controller = await future;
-    Future<void> setFlashing(bool flashing) => controller.updateMessage(
-      message,
-      message.copyWith(
-        metadata: {...(message.metadata ?? {}), "flashing": flashing},
+            : .new(eventId: relation.eventId, relationType: relationType),
       ),
     );
 
-    await setFlashing(true);
-    Timer(Duration(seconds: 1), () => setFlashing(false));
+    ref
+        .watch(RoomsController.provider.notifier)
+        .update(
+          .new({
+            roomId: .new(
+              events: .new({event.rowId: event}),
+              sticky: .new({event.rowId}),
+            ),
+          }),
+          .new(),
+        );
+  }
 
-    return await controller.scrollToMessage(message.id);
+  Future<void> removeReaction(
+    String reaction,
+    Event event,
+    String userId,
+  ) async {
+    final client = ref.watch(ClientController.provider.notifier);
+    final allReactionEvents = await client.getRelatedEvents(
+      .new(
+        roomId: roomId,
+        eventId: event.eventId,
+        relationType: "m.annotation",
+      ),
+    );
+
+    final reactionEvents = allReactionEvents
+        ?.where((event) => event.redactedBy == null)
+        .toIList();
+
+    final reactionEvent = reactionEvents?.firstWhereOrNull(
+      (event) => switch (event.content) {
+        ReactionContent(:final key) =>
+          key == reaction && event.sender == userId,
+        _ => false,
+      },
+    );
+
+    if (reactionEvent != null) {
+      await ref
+          .watch(ClientController.provider.notifier)
+          .redactEvent(.new(eventId: reactionEvent.eventId, roomId: roomId));
+    }
+  }
+
+  Future<void> sendReaction(String reaction, Event event) async {
+    final client = ref.watch(ClientController.provider.notifier);
+
+    await client.sendEvent(
+      .new(
+        roomId: roomId,
+        type: EventType.reaction.type,
+        content: {
+          "m.relates_to": {
+            "event_id": event.eventId,
+            "rel_type": "m.annotation",
+            "key": reaction,
+          },
+        },
+        synchronous: true,
+        disableEncryption: true,
+      ),
+    );
   }
 
   static final provider = AsyncNotifierProvider.family
-      .autoDispose<RoomChatController, InMemoryChatController, String>(
+      .autoDispose<RoomChatController, IList<Event>?, String>(
         RoomChatController.new,
       );
 }

lib/controllers/room_creators_controller.dart

@@ -0,0 +1,33 @@
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/models/content/content.dart";
+import "package:nexus/models/content/create.dart";
+import "package:nexus/models/room.dart";
+
+class RoomCreatorsController extends Notifier<IList<String>> {
+  final Room room;
+  RoomCreatorsController(this.room);
+
+  @override
+  IList<String> build() {
+    final createRowId = room.state[EventType.create.type]?[""];
+    final createEvent = createRowId == null ? null : room.events[createRowId];
+
+    if (createEvent == null) return .new();
+
+    final createEventContent = switch (createEvent.content) {
+      CreateContent content => content,
+      _ => null,
+    };
+
+    return switch (createEventContent?.additionalCreatorIds) {
+      IList<String> creators => creators.add(createEvent.sender),
+      _ => .new([createEvent.sender]),
+    };
+  }
+
+  static final provider =
+      NotifierProvider.family<RoomCreatorsController, IList<String>, Room>(
+        RoomCreatorsController.new,
+      );
+}

lib/controllers/rooms_controller.dart

@@ -1,13 +1,40 @@
-import "package:collection/collection.dart";
+import "dart:isolate";
 import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/controllers/new_events_controller.dart";
-import "package:nexus/models/read_receipt.dart";
+import "package:nexus/models/event.dart";
 import "package:nexus/models/room.dart";
 
 class RoomsController extends Notifier<IMap<String, Room>> {
   @override
-  IMap<String, Room> build() => const IMap.empty();
+  IMap<String, Room> build() => .new();
+
+  Future<void> addState(
+    String roomId,
+    IList<Event> state, {
+    bool isMembers = false,
+  }) async => update(
+    .new({
+      roomId: Room(
+        events: .fromEntries(state.map((event) => .new(event.rowId, event))),
+        hasFetchedState: true,
+        hasFetchedMembers: isMembers,
+        state: await Isolate.run(() {
+          final newState = state.fold<IMap<String, IMap<String, int>>>(
+            .new(),
+            (previousValue, stateEvent) => previousValue.add(
+              stateEvent.type,
+              (previousValue[stateEvent.type] ?? .new()).add(
+                stateEvent.stateKey!,
+                stateEvent.rowId,
+              ),
+            ),
+          );
+          return newState;
+        }),
+      ),
+    }),
+    .new(),
+  );
 
   void update(IMap<String, Room> rooms, ISet<String> leftRooms) {
     final merged = rooms.entries.fold(state, (acc, entry) {
@@ -15,55 +42,41 @@ class RoomsController extends Notifier<IMap<String, Room>> {
       final incoming = entry.value;
       final existing = acc[roomId];
 
-      final events = existing?.events.updateById(
-        incoming.events,
-        (item) => item.eventId,
-      );
-
-      ref
-          .watch(NewEventsController.provider(roomId).notifier)
-          .add(
-            incoming.timeline
-                .map(
-                  (timelineTuple) => events?.firstWhereOrNull(
-                    (event) => timelineTuple.eventRowId == event.rowId,
-                  ),
-                )
-                .nonNulls
-                .toIList(),
-          );
-
       return acc.add(
         roomId,
         existing?.copyWith(
               hasMore: incoming.hasMore,
+              sticky:
+                  (incoming.sticky.isEmpty == true
+                          ? existing.sticky
+                          : existing.sticky.addAll(incoming.sticky))
+                      .removeWhere(
+                        (rowId) => incoming.timeline.values.contains(rowId),
+                      ),
               metadata: incoming.metadata ?? existing.metadata,
-              events: events!,
+              events: incoming.events.isEmpty
+                  ? existing.events
+                  : existing.events.addAll(incoming.events),
               state: incoming.state.entries.fold(
                 existing.state,
                 (previousValue, event) => previousValue.add(
                   event.key,
-                  (previousValue[event.key] ?? const IMap.empty()).addAll(
-                    event.value,
-                  ),
+                  (previousValue[event.key] ?? .new()).addAll(event.value),
                 ),
               ),
-              timeline:
-                  (incoming.reset
-                          ? incoming.timeline
-                          : existing.timeline.updateById(
-                              incoming.timeline,
-                              (item) => item.timelineRowId,
-                            ))
-                      .sortedBy((element) => element.timelineRowId)
-                      .toIList(),
+              reset: false,
+              hasFetchedMembers:
+                  incoming.hasFetchedMembers || existing.hasFetchedMembers,
+              hasFetchedState:
+                  incoming.hasFetchedState || existing.hasFetchedState,
+              timeline: (incoming.reset
+                  ? incoming.timeline
+                  : existing.timeline.addAll(incoming.timeline)),
               receipts: incoming.receipts.entries.fold(
                 existing.receipts,
                 (receiptAcc, event) => receiptAcc.add(
                   event.key,
-                  (receiptAcc[event.key] ?? IList<ReadReceipt>()).addAll(
-                    event.value,
-                  ),
+                  (receiptAcc[event.key] ?? .new()).addAll(event.value),
                 ),
               ),
             ) ??
@@ -75,6 +88,7 @@ class RoomsController extends Notifier<IMap<String, Room>> {
       merged,
       (acc, roomId) => acc.remove(roomId),
     );
+
     state = prunedList;
   }
 

lib/controllers/selected_room_controller.dart

@@ -1,24 +0,0 @@
-import "package:collection/collection.dart";
-import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/controllers/key_controller.dart";
-import "package:nexus/controllers/selected_space_controller.dart";
-import "package:nexus/models/room.dart";
-
-class SelectedRoomController extends Notifier<Room?> {
-  @override
-  Room? build() {
-    final space = ref.watch(SelectedSpaceController.provider);
-    final selectedRoomId = ref.watch(
-      KeyController.provider(KeyController.roomKey),
-    );
-
-    return space.children.firstWhereOrNull(
-          (room) => room.metadata?.id == selectedRoomId,
-        ) ??
-        space.children.firstOrNull;
-  }
-
-  static final provider = NotifierProvider<SelectedRoomController, Room?>(
-    SelectedRoomController.new,
-  );
-}

lib/controllers/selected_space_controller.dart

@@ -1,22 +0,0 @@
-import "package:collection/collection.dart";
-import "package:flutter_riverpod/flutter_riverpod.dart";
-import "package:nexus/controllers/key_controller.dart";
-import "package:nexus/controllers/spaces_controller.dart";
-import "package:nexus/models/space.dart";
-
-class SelectedSpaceController extends Notifier<Space> {
-  @override
-  Space build() {
-    final spaces = ref.watch(SpacesController.provider);
-    final selectedSpaceId = ref.watch(
-      KeyController.provider(KeyController.spaceKey),
-    );
-
-    return spaces.firstWhereOrNull((space) => space.id == selectedSpaceId) ??
-        spaces.first;
-  }
-
-  static final provider = NotifierProvider<SelectedSpaceController, Space>(
-    SelectedSpaceController.new,
-  );
-}

lib/controllers/shared_prefs_controller.dart

@@ -3,7 +3,7 @@ import "package:shared_preferences/shared_preferences.dart";
 
 class SharedPrefsController extends AsyncNotifier<SharedPreferences> {
   @override
-  Future<SharedPreferences> build() => SharedPreferences.getInstance();
+  Future<SharedPreferences> build() async => .getInstance();
 
   static final provider =
       AsyncNotifierProvider<SharedPrefsController, SharedPreferences>(

lib/controllers/space_edges_controller.dart

@@ -4,7 +4,7 @@ import "package:nexus/models/space_edge.dart";
 
 class SpaceEdgesController extends Notifier<IMap<String, IList<SpaceEdge>>> {
   @override
-  IMap<String, IList<SpaceEdge>> build() => const IMap.empty();
+  IMap<String, IList<SpaceEdge>> build() => .new();
 
   void set(IMap<String, IList<SpaceEdge>> newEdges) =>
       state = state.addAll(newEdges);

lib/controllers/spaces_controller.dart

@@ -1,3 +1,4 @@
+import "package:collection/collection.dart";
 import "package:fast_immutable_collections/fast_immutable_collections.dart";
 import "package:flutter/material.dart";
 import "package:flutter_riverpod/flutter_riverpod.dart";
@@ -5,9 +6,9 @@ import "package:nexus/controllers/account_data_controller.dart";
 import "package:nexus/controllers/rooms_controller.dart";
 import "package:nexus/controllers/top_level_spaces_controller.dart";
 import "package:nexus/controllers/space_edges_controller.dart";
-import "package:nexus/models/space.dart";
 import "package:nexus/models/room.dart";
-import "package:nexus/models/space_edge.dart";
+import "package:nexus/models/space.dart";
+import "package:nexus/models/subspace.dart";
 
 class SpacesController extends Notifier<IList<Space>> {
   @override
@@ -15,99 +16,133 @@ class SpacesController extends Notifier<IList<Space>> {
     final rooms = ref.watch(RoomsController.provider);
     final topLevelSpaceIds = ref.watch(TopLevelSpacesController.provider);
     final spaceEdges = ref.watch(SpaceEdgesController.provider);
+    final accountData = ref.watch(AccountDataController.provider);
 
-    final childRoomsBySpaceId = IMap.fromEntries(
-      topLevelSpaceIds.map((spaceId) {
-        ISet<String> walk(String currentId) {
-          final children = spaceEdges[currentId] ?? IList<SpaceEdge>();
+    final childrenById = {
+      for (final entry in spaceEdges.entries)
+        entry.key: entry.value.map((e) => e.childId).toList(),
+    };
 
-          return children.fold<ISet<String>>(const ISet.empty(), (acc, edge) {
-            final childId = edge.childId;
-            final isSpace = spaceEdges.containsKey(childId);
+    Set<String> collectDescendants(String startId) {
+      final visited = <String>{};
+      final stack = [startId];
 
-            return acc
-                .addAll(!isSpace ? ISet([childId]) : const ISet.empty())
-                .addAll(isSpace ? walk(childId) : const ISet.empty());
-          });
+      while (stack.isNotEmpty) {
+        final current = stack.removeLast();
+        final children = childrenById[current] ?? const [];
+
+        for (final child in children) {
+          if (visited.add(child)) {
+            stack.add(child);
+          }
         }
+      }
 
-        return MapEntry(
-          spaceId,
-          walk(spaceId).map((id) => rooms[id]).nonNulls.toIList(),
-        );
-      }),
-    );
+      return visited;
+    }
 
-    final allNestedRoomIds = childRoomsBySpaceId.values
-        .expand((l) => l)
-        .map(
-          (room) => rooms.entries
-              .firstWhere(
-                (entry) => entry.value.metadata?.id == room.metadata?.id,
-              )
-              .key,
-        )
-        .toISet();
+    Space buildSpace(String spaceId) {
+      final space = rooms[spaceId];
+      final directChildrenIds = childrenById[spaceId] ?? const [];
+
+      final directRooms = <Room>[];
+      final subSpaces = <Subspace>[];
+
+      for (final childId in directChildrenIds) {
+        final room = rooms[childId];
+        if (room == null) continue;
+
+        if (childrenById.containsKey(childId)) {
+          final descendants = collectDescendants(childId);
+
+          subSpaces.add(
+            .new(
+              room: room,
+              children: .new(descendants.map((id) => rooms[id]).nonNulls),
+            ),
+          );
+        } else {
+          directRooms.add(room);
+        }
+      }
+
+      return .new(
+        id: spaceId,
+        room: space,
+        title: space?.metadata?.name ?? "Unnamed Space",
+        children: .new(directRooms),
+        subSpaces: .new(subSpaces),
+      );
+    }
+
+    final spaces = topLevelSpaceIds.map(buildSpace).toIList();
+
+    final usedRoomIds = {
+      for (final space in spaces) ...[
+        ...space.children.map((r) => r.metadata?.id),
+        ...space.subSpaces.expand((s) => s.children.map((r) => r.metadata?.id)),
+      ],
+    }.nonNulls.toISet();
+
+    final directMessages = IMap(
+      accountData["m.direct"]?.content ?? {},
+    ).values.expand((e) => e).toISet();
 
     final otherRooms = rooms.entries
         .where(
           (e) =>
-              !allNestedRoomIds.contains(e.key) &&
+              !usedRoomIds.contains(e.key) &&
               !topLevelSpaceIds.contains(e.key) &&
-              !spaceEdges.containsKey(e.key),
+              !childrenById.containsKey(e.key),
         )
-        .map((e) => e.value);
-
-    final accountData = ref.watch(AccountDataController.provider);
-
-    final directMessages = IMap(
-      accountData["m.direct"]?.content ?? {},
-    ).values.expand((element) => element);
+        .map((e) => e.value)
+        .toIList();
 
     final homeRooms = otherRooms
-        .where(
-          (room) =>
-              directMessages.any(
-                (directMessage) => directMessage == room.metadata?.id,
-              ) ==
-              false,
-        )
+        .where((r) => !directMessages.contains(r.metadata?.id))
         .toIList();
 
     final dmRooms = otherRooms
-        .where(
-          (room) => directMessages.any(
-            (directMessage) => directMessage == room.metadata?.id,
-          ),
-        )
+        .where((r) => directMessages.contains(r.metadata?.id))
         .toIList();
 
-    final topLevelSpacesList = topLevelSpaceIds
-        .map((id) {
-          final room = rooms[id];
-          if (room == null) return null;
-
-          final children = childRoomsBySpaceId[id] ?? IList<Room>();
-          return Space(
-            id: id,
-            title: room.metadata?.name ?? "Unnamed Room",
-            room: room,
-            children: children,
-          );
-        })
-        .nonNulls
-        .toIList();
-
-    return <Space>[
-      Space(id: "home", title: "Home", icon: Icons.home, children: homeRooms),
-      Space(
+    final allSpaces = <Space>[
+      .new(
+        id: "home",
+        title: "Home",
+        icon: Icons.home,
+        children: homeRooms,
+        subSpaces: .new(),
+      ),
+      .new(
         id: "dms",
         title: "Direct Messages",
         icon: Icons.people,
         children: dmRooms,
+        subSpaces: .new(),
       ),
-      ...topLevelSpacesList,
-    ].toIList();
+      ...spaces,
+    ];
+
+    return allSpaces
+        .map(
+          (space) => space.copyWith(
+            children: .new(
+              space.children
+                  .sortedBy(
+                    (element) =>
+                        element
+                            .metadata
+                            ?.sortingTimestamp
+                            .millisecondsSinceEpoch ??
+                        0,
+                  )
+                  .sortedBy((room) => room.metadata?.unreadMessages ?? 0)
+                  .reversed,
+            ),
+          ),
+        )
+        .toIList();
   }
 
   static final provider = NotifierProvider<SpacesController, IList<Space>>(

lib/controllers/sync_status_controller.dart

@@ -1,11 +1,17 @@
 import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/main.dart";
 import "package:nexus/models/sync_status.dart";
 
 class SyncStatusController extends Notifier<SyncStatus?> {
   @override
   Null build() => null;
 
-  void set(SyncStatus newStatus) => state = newStatus;
+  void set(SyncStatus newStatus) {
+    if (newStatus.type == .permanentlyFailed) {
+      showError(newStatus.error ?? "Syncing failed");
+    }
+    state = newStatus;
+  }
 
   static final provider = NotifierProvider<SyncStatusController, SyncStatus?>(
     SyncStatusController.new,

lib/controllers/top_level_spaces_controller.dart

@@ -3,7 +3,7 @@ import "package:flutter_riverpod/flutter_riverpod.dart";
 
 class TopLevelSpacesController extends Notifier<IList<String>> {
   @override
-  IList<String> build() => const IList.empty();
+  IList<String> build() => .new();
 
   void set(IList<String> newSpaces) => state = newSpaces;
 

lib/controllers/url_preview_controller.dart

@@ -0,0 +1,51 @@
+import "dart:convert";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:http/http.dart";
+import "package:nexus/controllers/client_state_controller.dart";
+import "package:nexus/controllers/header_controller.dart";
+import "package:nexus/helpers/extensions/mxc_to_https.dart";
+import "package:nexus/models/open_graph_data.dart";
+
+class UrlPreviewController extends AsyncNotifier<OpenGraphData?> {
+  final String link;
+  UrlPreviewController(this.link);
+
+  @override
+  Future<OpenGraphData?> build() async {
+    final homeserver = ref.watch(
+      ClientStateController.provider.select((value) => value?.homeserverUrl),
+    );
+
+    if (homeserver != null && !link.contains("matrix.to")) {
+      {
+        final response = await get(
+          .parse(homeserver)
+              .resolve("/_matrix/client/v1/media/preview_url")
+              .replace(queryParameters: {"url": link}),
+          headers: await ref.watch(HeaderController.provider.future),
+        );
+
+        if (response.statusCode == 200) {
+          final decodedValue = json.decode(response.body);
+          if (decodedValue is! Map<String, dynamic>) return null;
+
+          final mxc = decodedValue["og:image"];
+          final image = mxc == null
+              ? null
+              : Uri.tryParse(mxc)?.mxcToHttps(homeserver);
+
+          return .fromJson(decodedValue).copyWith(imageUrl: image);
+        }
+      }
+    }
+
+    return null;
+  }
+
+  static final provider =
+      AsyncNotifierProvider.family<
+        UrlPreviewController,
+        OpenGraphData?,
+        String
+      >(UrlPreviewController.new);
+}

lib/controllers/user_controller.dart

@@ -0,0 +1,47 @@
+import "dart:async";
+import "package:collection/collection.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/members_controller.dart";
+import "package:nexus/controllers/profile_controller.dart";
+import "package:nexus/helpers/extensions/get_localpart.dart";
+import "package:nexus/models/configs/user_config.dart";
+import "package:nexus/models/content/membership.dart";
+
+class UserController extends AsyncNotifier<MembershipContent> {
+  final UserConfig config;
+  UserController(this.config);
+
+  @override
+  Future<MembershipContent> build() async {
+    final member = config.roomId == null
+        ? null
+        : await ref.watch(
+            MembersController.provider(config.roomId!).selectAsync(
+              (value) => value.firstWhereOrNull(
+                (membership) => membership.stateKey == config.userId,
+              ),
+            ),
+          );
+
+    if (member?.content case final MembershipContent content) {
+      return content;
+    }
+
+    final profile = await ref.watch(
+      ProfileController.provider(config.userId).future,
+    );
+
+    return .new(
+      status: .leave,
+      avatarUrl: profile.avatarUrl,
+      displayName: profile.displayName ?? config.userId.localpart,
+    );
+  }
+
+  static final provider =
+      AsyncNotifierProvider.family<
+        UserController,
+        MembershipContent,
+        UserConfig
+      >(UserController.new);
+}

lib/controllers/via_controller.dart

@@ -0,0 +1,63 @@
+import "package:collection/collection.dart";
+import "package:fast_immutable_collections/fast_immutable_collections.dart";
+import "package:flutter_riverpod/flutter_riverpod.dart";
+import "package:nexus/controllers/client_state_controller.dart";
+import "package:nexus/models/content/content.dart";
+import "package:nexus/models/content/membership.dart";
+import "package:nexus/models/content/power_levels.dart";
+import "package:nexus/models/room.dart";
+
+class ViaController extends Notifier<String> {
+  final Room room;
+  ViaController(this.room);
+
+  @override
+  String build() {
+    final servers = <String>{};
+
+    void addUserId(String? userId) {
+      final server = userId?.split(":").lastOrNull;
+      if (server != null) {
+        servers.add(server);
+      }
+    }
+
+    addUserId(ref.watch(ClientStateController.provider)?.userId);
+
+    final powerLevelsEventId = room.state[EventType.powerLevels.type]?[""];
+    final powerLevels = powerLevelsEventId == null
+        ? null
+        : room.events[powerLevelsEventId];
+
+    if (powerLevels?.content case PowerLevelsContent(:final users)) {
+      for (final userId in users.keys) {
+        addUserId(userId);
+        if (servers.length >= 5) break;
+      }
+    }
+
+    final members = room.state[EventType.membership.type]?.values.toIList();
+    for (var i = 0; servers.length < 5; i++) {
+      final membershipEventId = members?.getOrNull(i);
+      final member = membershipEventId == null
+          ? null
+          : room.events[membershipEventId];
+
+      if (member?.content case MembershipContent(:final status)) {
+        if (status == .join) {
+          addUserId(member?.stateKey);
+        }
+      }
+
+      if (members?.getOrNull(i) == null) break;
+    }
+
+    return servers.isEmpty
+        ? ""
+        : "?${servers.map((server) => "via=$server").join("&")}";
+  }
+
+  static final provider = NotifierProvider.family<ViaController, String, Room>(
+    ViaController.new,
+  );
+}

lib/helpers/extensions/get_localpart.dart

@@ -0,0 +1,3 @@
+extension GetLocalpart on String {
+  String get localpart => length > 1 ? substring(1).split(":").first : "?";
+}

lib/helpers/extensions/gomuks_buffer.dart

@@ -7,8 +7,8 @@ import "package:nexus/src/third_party/gomuks.g.dart";
 extension GomuksOwnedBufferToX on GomuksOwnedBuffer {
   Uint8List toBytes() {
     try {
-      if (base == nullptr || length <= 0) return Uint8List(0);
-      return Uint8List.fromList(base.asTypedList(length));
+      if (base == nullptr || length <= 0) return .new(0);
+      return .fromList(base.asTypedList(length));
     } finally {
       calloc.free(base);
     }