diff --git a/.github/workflows/flatpak.yml b/.github/workflows/flatpak.yml
index 1319e6ac..59c70859 100644
--- a/.github/workflows/flatpak.yml
+++ b/.github/workflows/flatpak.yml
@@ -1,4 +1,4 @@
-name: Flatpak build
+name: Flatpak CI
 
 on:
   release:
@@ -10,15 +10,49 @@ on:
 
 jobs:
   flatpak:
-    name: 'Flatpak build'
+    name: Flatpak build (${{ matrix.config.arch }})
     runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        config:
+          - arch: x86_64
+            use_qemu: false
+
+          - arch: aarch64
+            use_qemu: true
+            qemu_arch: arm64
+      # Don't fail the whole workflow if one architecture fails
+      fail-fast: false
     container:
       image: bilelmoussaoui/flatpak-github-actions:freedesktop-24.08
       options: --privileged
     steps:
       - uses: actions/checkout@v4
+
+      - name: Install deps
+        if: ${{ matrix.config.use_qemu == true }}
+        run: |
+          dnf -y install docker
+
+      - name: Set up QEMU
+        if: ${{ matrix.config.use_qemu == true }}
+        id: qemu
+        uses: docker/setup-qemu-action@v2
+        with:
+          platforms: ${{ matrix.config.qemu_arch }}
+
       - uses: bilelmoussaoui/flatpak-github-actions/flatpak-builder@v6
         with:
           bundle: oopetris.flatpak
-          manifest-path: com.github.mgerhold.OOPetris.yml
+          manifest-path: io.github.openbrickprotocolfoundation.oopetris.yml
           verbose: ${{ runner.debug == '1' && 'true' || 'false' }}
+          cache-key: flatpak-builder-${{ github.sha }}
+          arch: ${{ matrix.config.arch }}
+
+      - uses: flatpak/flatpak-github-actions/flat-manager@v4
+        name: 'Deploy'
+        if: github.event_name != 'pull_request'
+        with:
+          repository: beta
+          flat-manager-url: http://flat-man.oopetris.totto.lt
+          token: ${{ secrets.FLAT_MANAGER_TOKEN }}
diff --git a/.github/workflows/cpp-linter.yml b/.github/workflows/lint.yml
similarity index 92%
rename from .github/workflows/cpp-linter.yml
rename to .github/workflows/lint.yml
index 4e440b3f..51fc0fac 100644
--- a/.github/workflows/cpp-linter.yml
+++ b/.github/workflows/lint.yml
@@ -1,4 +1,4 @@
-name: C++ lints(clang-format + clang-tidy)
+name: Lint CI
 on:
   push:
     branches: ['main']
@@ -7,6 +7,7 @@ on:
 
 jobs:
   cpp-linter:
+    name: C++ lints(clang-format + clang-tidy)
     runs-on: ubuntu-24.04
     permissions:
       pull-requests: write
@@ -31,7 +32,7 @@ jobs:
       - name: Prepare compile_commands.json
         run: |
           sudo apt-get update
-          sudo apt-get install ninja-build libsdl2-2.0-0 libsdl2-dev libsdl2-ttf* libsdl2-mixer* libsdl2-image* -y --no-install-recommends
+          sudo apt-get install ninja-build libsdl2-2.0-0 libsdl2-dev libsdl2-ttf* libsdl2-mixer* libsdl2-image* desktop-file-utils -y --no-install-recommends
 
           meson setup build -Dbuildtype=release -Dclang_libcpp=disabled -Dtests=true
           meson compile -C build git_version.hpp
diff --git a/.github/workflows/musl.yml b/.github/workflows/musl.yml
index ed8e543a..aa5c9037 100644
--- a/.github/workflows/musl.yml
+++ b/.github/workflows/musl.yml
@@ -1,4 +1,4 @@
-name: musl CI
+name: Musl CI
 
 on:
   push:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 20ecde2f..6f0894a1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -32,7 +32,7 @@ jobs:
       - name: Install dependencies
         run: |
           sudo apt-get update
-          sudo apt-get install ninja-build libsdl2-2.0-0 libsdl2-dev libsdl2-ttf* libsdl2-mixer* libsdl2-image* gcovr -y --no-install-recommends
+          sudo apt-get install ninja-build libsdl2-2.0-0 libsdl2-dev libsdl2-ttf* libsdl2-mixer* libsdl2-image* gcovr desktop-file-utils -y --no-install-recommends
 
       - name: Configure
         run: meson setup build -Dbuildtype=debug -Db_coverage=true -Dtests=true -Dclang_libcpp=enabled
diff --git a/.github/workflows/installer.yml b/.github/workflows/windows_installer.yml
similarity index 98%
rename from .github/workflows/installer.yml
rename to .github/workflows/windows_installer.yml
index f15789cf..5816b7a4 100644
--- a/.github/workflows/installer.yml
+++ b/.github/workflows/windows_installer.yml
@@ -1,4 +1,4 @@
-name: Installer CI
+name: Windows Installer CI
 
 on:
   push:
diff --git a/README.md b/README.md
index 2ce78e93..9b29e8de 100644
--- a/README.md
+++ b/README.md
@@ -23,14 +23,21 @@ Or you can download and use prebuilt binaries from the CI-builds. You can find s
 
 To download artifacts, click on the newest action and download the artifacts.
 
-[Android](https://github.com/mgerhold/oopetris/actions/workflows/android.yml)
+[Android](https://github.com/OpenBrickProtocolFoundation/oopetris/actions/workflows/android.yml)
 
-[Linux (Flatpak)](https://github.com/mgerhold/oopetris/actions/workflows/flatpak.yml)
+[Linux (Flatpak)](https://github.com/OpenBrickProtocolFoundation/oopetris/actions/workflows/flatpak.yml)
 
-[Nintendo Switch /3DS](https://github.com/mgerhold/oopetris/actions/workflows/nintendo.yml)
+[Nintendo Switch / 3DS](https://github.com/OpenBrickProtocolFoundation/oopetris/actions/workflows/nintendo.yml)
 
-There is no correct Windows and MacOS build atm, you have to built it yourself or use the (maybe not published yet) release builds on github.
+[Windows](https://github.com/OpenBrickProtocolFoundation/oopetris/actions/workflows/windows_installer.yml)
 
+There is no correct MacOS build atm, you have to built it yourself or use the (maybe not published yet) releases on GitHub.
+
+## Releases
+
+There is an official website for OOPetris, where you also can find different links to auto updatable releases.
+
+For concrete instructions see [here](docs/releases.md)
 
 ## Logo
 
diff --git a/assets/io.github.openbrickprotocolfoundation.oopetris.metainfo.xml.in b/assets/io.github.openbrickprotocolfoundation.oopetris.metainfo.xml.in
new file mode 100644
index 00000000..d7633a50
--- /dev/null
+++ b/assets/io.github.openbrickprotocolfoundation.oopetris.metainfo.xml.in
@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop-application">
+  <id>@APP_ID@</id>
+  <name>OOPetris</name>
+  <summary>A Tetris clone in OOP</summary>
+  <metadata_license>MIT</metadata_license>
+  <project_license>MIT</project_license>
+  <supports>
+    <control>pointing</control>
+    <control>keyboard</control>
+    <control>touch</control>
+    <control>gamepad</control>
+  </supports>
+  <description>
+    <p>
+      A Tetris clone in OOP. Supports multiplayer, recordings and many more features. For more information vist the github repository.
+    </p>
+  </description>
+  <launchable type="desktop-id">@APP_ID@.desktop</launchable>
+  <content_rating type="oars-1.0" />
+  <developer id="lt.totto">
+    <name>Totto16</name>
+  </developer>
+  <releases>
+    <release version="0.5.6" date="2024-05-17">
+      <url type="details">https://github.com/OpenBrickProtocolFoundation/oopetris/releases/tag/0.5.6</url>
+    </release>
+  </releases>
+  <url type="homepage">https://oopetris.totto.lt/</url>
+  <url type="bugtracker">https://github.com/OpenBrickProtocolFoundation/oopetris/issues</url>
+  <url type="contribute">https://github.com/OpenBrickProtocolFoundation/oopetris/pulls</url>
+  <url type="vcs-browser">https://github.com/OpenBrickProtocolFoundation/oopetris</url>
+</component>
diff --git a/docs/develop.md b/docs/develop.md
index ed263bb9..796cab95 100644
--- a/docs/develop.md
+++ b/docs/develop.md
@@ -8,13 +8,12 @@ For concrete instructions, see the list below:
 
 ## Linux
 
-[linux](linux.md)
+[Linux](linux.md)
 
 ## Serenity OS
 
 [serenity](serenity.md)
 
-
 ## Windows
 
 [windows](windows.md)
@@ -27,12 +26,10 @@ For concrete instructions, see the list below:
 
 [switch](switch.md)
 
-
 ## Nintendo 3DS
 
 [switch](3ds.md)
 
-
 ## Android
 
 [android](android.md)
diff --git a/docs/linux.md b/docs/linux.md
index 3119961d..ae8fea06 100644
--- a/docs/linux.md
+++ b/docs/linux.md
@@ -10,7 +10,6 @@
 
 You just have to call these commands:
 
-
 ```bash
 meson setup build
 
@@ -19,14 +18,15 @@ meson compile -C build
 ./build/oopetris # to run the executable
 ```
 
-
 ## Compiling for flatpak
 
 You optionally can compile a flatpak image.
 
 For that you need some additional binaries, namely the flatpak-builder, than just run:
 
-<!-- WIP: that is not entirely correct -->
+> [!NOTE]
+> that is not entirely correct
+
 ```bash
-flatpak-build com.github.mgerhold.OOPetris.yml
+flatpak-build io.github.openbrickprotocolfoundation.oopetris.yml
 ```
diff --git a/docs/releases.md b/docs/releases.md
new file mode 100644
index 00000000..92566c7c
--- /dev/null
+++ b/docs/releases.md
@@ -0,0 +1,45 @@
+<!-- LTeX: enabled=true, language=en -->
+
+# OOPetris Releases
+
+
+We support multiple platforms and different types of executables / packages.
+So here is a list of supported "package managers" / installation platforms.
+
+## Android / FDroid
+
+> [!NOTE]
+> This is still WIP
+
+## Linux / Flatpak
+
+We provide stable and beta releases via 2 remotes:
+
+To use the stable version, use this repo:
+
+```bash
+flatpak remote-add --if-not-exists oopetris-stable https://oopetris.totto.lt/repo/assets/oopetris.stable.flatpakrepo
+
+```
+
+And to use beta version:
+
+```bash
+flatpak remote-add --if-not-exists oopetris-beta https://oopetris.totto.lt/repo/assets/oopetris.beta.flatpakrepo
+
+```
+
+Than install it by using this command:
+
+```bash
+flatpak install -v io.github.openbrickprotocolfoundation.oopetris
+```
+
+To update use the normal flatpak update command, keep in mind, that the bet may be unstable and break things, use with caution!
+
+## Other
+
+> [!NOTE]
+> This is still WIP
+
+All other platforms have more difficult to support auto update capabilities, so you can find more on our [website](https://oopetris.totto.lt/releases).
diff --git a/com.github.mgerhold.OOPetris.yml b/io.github.openbrickprotocolfoundation.oopetris.yml
similarity index 95%
rename from com.github.mgerhold.OOPetris.yml
rename to io.github.openbrickprotocolfoundation.oopetris.yml
index 14be55a0..25239e42 100644
--- a/com.github.mgerhold.OOPetris.yml
+++ b/io.github.openbrickprotocolfoundation.oopetris.yml
@@ -1,4 +1,4 @@
-app-id: com.github.mgerhold.OOPetris
+app-id: io.github.openbrickprotocolfoundation.oopetris
 runtime: org.freedesktop.Platform
 runtime-version: "24.08"
 sdk: org.freedesktop.Sdk
diff --git a/src/discord/core.cpp b/src/discord/core.cpp
index 217f24e4..97200f26 100644
--- a/src/discord/core.cpp
+++ b/src/discord/core.cpp
@@ -11,7 +11,7 @@
 [[nodiscard]] std::string constants::discord ::get_asset_key(constants::discord::ArtAsset asset) {
 
     switch (asset) {
-        case ArtAsset::logo:
+        case ArtAsset::Logo:
             return "logo";
         default:
             UNREACHABLE();
diff --git a/src/discord/core.hpp b/src/discord/core.hpp
index 55d917bf..21423b00 100644
--- a/src/discord/core.hpp
+++ b/src/discord/core.hpp
@@ -3,6 +3,7 @@
 #pragma once
 
 #include <core/helper/expected.hpp>
+#include <core/helper/types.hpp>
 
 #include "../helper/windows.hpp"
 
@@ -26,7 +27,8 @@ namespace constants::discord {
 #elif defined(__CONSOLE__)
 #error "Not supported"
 #elif defined(FLATPAK_BUILD)
-    constexpr const char* platform_dependent_launch_arguments = "flatpak run com.github.mgerhold.OOPetris --discord";
+    constexpr const char* platform_dependent_launch_arguments =
+            "flatpak run io.github.openbrickprotocolfoundation.oopetris --discord";
 #elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__) || defined(__NT__)
     constexpr const char* platform_dependent_launch_arguments = "oopetris.exe --discord";
 #elif defined(__APPLE__)
@@ -38,7 +40,7 @@ namespace constants::discord {
 #endif
 
     // manually synchronized to https://discord.com/developers/applications/1220147916371394650/rich-presence/assets
-    enum class ArtAsset { logo };
+    enum class ArtAsset : u8 { Logo };
 
     OOPETRIS_GRAPHICS_EXPORTED [[nodiscard]] std::string get_asset_key(ArtAsset asset);
 
diff --git a/src/scenes/main_menu/main_menu.cpp b/src/scenes/main_menu/main_menu.cpp
index 9f7ea881..59aebd0d 100644
--- a/src/scenes/main_menu/main_menu.cpp
+++ b/src/scenes/main_menu/main_menu.cpp
@@ -90,7 +90,7 @@ namespace scenes {
 
             discord_instance->set_activity(
                     DiscordActivityWrapper("Selecting playmode", discord::ActivityType::Playing)
-                            .set_large_image("Playing OOPetris", constants::discord::ArtAsset::logo)
+                            .set_large_image("Playing OOPetris", constants::discord::ArtAsset::Logo)
                             .set_start_timestamp(std::chrono::system_clock::now())
             );
         }
diff --git a/src/scenes/replay_game/replay_game.cpp b/src/scenes/replay_game/replay_game.cpp
index 4a2362aa..75f0a2df 100644
--- a/src/scenes/replay_game/replay_game.cpp
+++ b/src/scenes/replay_game/replay_game.cpp
@@ -58,7 +58,7 @@ namespace scenes {
 
             discord_instance->set_activity(
                     DiscordActivityWrapper("Replaying a game", discord::ActivityType::Playing)
-                            .set_large_image("Playing OOPetris", constants::discord::ArtAsset::logo)
+                            .set_large_image("Playing OOPetris", constants::discord::ArtAsset::Logo)
                             .set_start_timestamp(std::chrono::system_clock::now())
             );
         }
diff --git a/src/scenes/single_player_game/single_player_game.cpp b/src/scenes/single_player_game/single_player_game.cpp
index e1a23899..9c35e66f 100644
--- a/src/scenes/single_player_game/single_player_game.cpp
+++ b/src/scenes/single_player_game/single_player_game.cpp
@@ -53,7 +53,7 @@ namespace scenes {
 
             discord_instance->set_activity(
                     DiscordActivityWrapper("Playing a single-player game", discord::ActivityType::Playing)
-                            .set_large_image("Playing OOPetris", constants::discord::ArtAsset::logo)
+                            .set_large_image("Playing OOPetris", constants::discord::ArtAsset::Logo)
                             .set_start_timestamp(std::chrono::system_clock::now())
             );
         }
diff --git a/tools/dependencies/meson.build b/tools/dependencies/meson.build
index 204bf626..2e333dac 100644
--- a/tools/dependencies/meson.build
+++ b/tools/dependencies/meson.build
@@ -305,7 +305,7 @@ if build_application
     endif
 
     if is_flatpak_build
-        app_name = 'com.github.mgerhold.OOPetris'
+        app_name = 'io.github.openbrickprotocolfoundation.oopetris'
 
         temp = core_lib.get('compile_args')
         temp += '-DFLATPAK_BUILD'
@@ -319,6 +319,7 @@ if build_application
     nfde_dep = dependency(
         'nativefiledialog-extended',
         required: not meson.is_cross_build(),
+        allow_fallback: true,
         default_options: {
             'xdg-desktop-portal': is_flatpak_build ? 'enabled' : 'auto',
         },
@@ -336,9 +337,17 @@ if build_application
 
     c = meson.get_compiler('c')
 
+    discord_dep_required = not meson.is_cross_build() and get_option('build_installer')
+
+    if host_machine.system() == 'linux' and host_machine.cpu_family() == 'aarch64'
+        # not supported on aarch64 linux :(
+        discord_dep_required = false
+    endif
+
     discord_sdk_dep = dependency(
         'discord-game-sdk',
-        required: not meson.is_cross_build() and get_option('build_installer'),
+        allow_fallback: true,
+        required: discord_dep_required,
         # only with msvc we need a static library, all others work without adding __declspec() everywhere
         static: c.get_id() == 'msvc',
         default_options: c.get_id() != 'msvc' ? {} : {'default_library': 'static'},
diff --git a/tools/install/meson.build b/tools/install/meson.build
index db010c62..3ed51689 100644
--- a/tools/install/meson.build
+++ b/tools/install/meson.build
@@ -1,20 +1,29 @@
 if build_application
 
+    flatpak_app_name = 'io.github.openbrickprotocolfoundation.oopetris'
+
     ## TODO: only install needed ones, since sometimes we only need e.g. flacs or mp3 and no icons etc.
     ## install assets
     install_subdir(
         meson.project_source_root() / 'assets',
         install_dir: 'share/oopetris',
         install_tag: 'assets',
-        exclude_files: ['oopetris.desktop.in', 'OOPetris.svg', 'recordings.magic'],
+        exclude_files: [
+            'oopetris.desktop.in',
+            flatpak_app_name+'.metainfo.xml.in',
+            'OOPetris.svg',
+            'recordings.magic',
+        ],
         exclude_directories: ['icon'],
     )
 
     app_name = 'oopetris'
     if is_flatpak_build
-        app_name = 'com.github.mgerhold.OOPetris'
+        app_name = flatpak_app_name
     endif
 
+    require_checks = get_option('tests')
+
     conf = configuration_data()
     conf.set('APP_NAME', app_name)
 
@@ -54,8 +63,8 @@ if build_application
         endif
     endif
 
-    configure_file(
-        input: meson.project_source_root() / 'assets/oopetris.desktop.in',
+    desktop_file = configure_file(
+        input: meson.project_source_root() / 'assets' / 'oopetris.desktop.in',
         output: app_name + '.desktop',
         configuration: conf,
         install: true,
@@ -63,6 +72,48 @@ if build_application
         install_tag: 'other',
     )
 
+    desktop_file_validate_exe = find_program('desktop-file-validate', required: require_checks)
+
+    if desktop_file_validate_exe.found()
+        test(
+            'validate desktop file',
+            desktop_file_validate_exe,
+            args: [desktop_file],
+        )
+    endif
+
+    if is_flatpak_build
+
+        flaptak_conf = configuration_data()
+        flaptak_conf.set('APP_ID', app_name)
+        flaptak_conf.set('APP_VERSION', meson.project_version())
+
+        metainfo_file = configure_file(
+            input: meson.project_source_root() / 'assets' / (flatpak_app_name+'.metainfo.xml.in'),
+            output: app_name + '.metainfo.xml',
+            configuration: flaptak_conf,
+            install: true,
+            install_dir: datadir / 'metainfo',
+            install_tag: 'other',
+        )
+
+        ascli_exe = find_program('appstreamcli', required: require_checks)
+
+        if ascli_exe.found()
+            test(
+                'validate metainfo file',
+                ascli_exe,
+                args: [
+                    'validate',
+                    '--no-net',
+                    '--explain',
+                    '--pedantic', metainfo_file,
+                ],
+            )
+        endif
+
+    endif
+
     logos = [
         '24x24.png',
         '48x48.png',