diff --git a/.github/workflows/build-artifacts.yml b/.github/workflows/build-artifacts.yml
new file mode 100644
index 0000000..7ec815a
--- /dev/null
+++ b/.github/workflows/build-artifacts.yml
@@ -0,0 +1,20 @@
+name: "Build Artifacts for RetroDECK main manifest"
+
+on:
+  push:
+    branches:
+     - master
+     - main
+  workflow_call:
+
+jobs:
+  Building-project:
+    runs-on: ubuntu-latest
+
+    steps:
+
+        - name: "Install dependencies"
+          uses: RetroDECK/components-template/.github/workflows/install_dependencies.yml@main
+
+        - name: "Build project"
+          uses: RetroDECK/components-template/.github/workflows/build_artifacts.yml@main
\ No newline at end of file
diff --git a/.github/workflows/pr-from-upstream.yml b/.github/workflows/pr-from-upstream.yml
new file mode 100644
index 0000000..2eccbdf
--- /dev/null
+++ b/.github/workflows/pr-from-upstream.yml
@@ -0,0 +1,15 @@
+name: "Sync with Upstream and Create PR"
+
+on:
+  workflow_call:
+  schedule:
+    - cron: "30 0 * * *"  # Run every day at 00:30 UTC (9:30 JST)
+
+jobs:
+  Upstream-sync:
+    runs-on: ubuntu-latest
+
+    steps:
+
+        - name: "Sync with upstream"
+          uses: RetroDECK/components-template/.github/workflows/pr_from_upstream.yml@main
\ No newline at end of file
diff --git a/.github/workflows/update.yml b/.github/workflows/update.yml
deleted file mode 100644
index fdcf621..0000000
--- a/.github/workflows/update.yml
+++ /dev/null
@@ -1,24 +0,0 @@
-name: Check for updates
-on:
-  schedule: # for scheduling to work this file must be in the default branch
-  - cron: "30 0 * * 5"
-  workflow_dispatch: # can be manually dispatched under GitHub's "Actions" tab
-
-jobs:
-  flatpak-external-data-checker:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v3
-
-      - uses: docker://ghcr.io/flathub/flatpak-external-data-checker:latest
-        env:
-          GIT_AUTHOR_NAME: Flatpak External Data Checker
-          GIT_COMMITTER_NAME: Flatpak External Data Checker
-          # email sets "github-actions[bot]" as commit author, see https://github.community/t/github-actions-bot-email-address/17204/6
-          GIT_AUTHOR_EMAIL: 41898282+github-actions[bot]@users.noreply.github.com
-          GIT_COMMITTER_EMAIL: 41898282+github-actions[bot]@users.noreply.github.com
-          EMAIL: 41898282+github-actions[bot]@users.noreply.github.com
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        with:
-          entrypoint: /bin/sh
-          args: -c "git config --global --add safe.directory /github/workspace && cd /github/workspace && /app/flatpak-external-data-checker --update --never-fork net.rpcs3.RPCS3.yaml"
diff --git a/icon.png b/icon.png
new file mode 100644
index 0000000..b487fbf
Binary files /dev/null and b/icon.png differ
diff --git a/solarus-launcher.appdata.xml b/solarus-launcher.appdata.xml
new file mode 100644
index 0000000..44ce1c1
--- /dev/null
+++ b/solarus-launcher.appdata.xml
@@ -0,0 +1,30 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>org.solarus_games.solarus.Launcher.desktop</id>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-3.0</project_license>
+  <name>Solarus Launcher</name>
+  <summary>Browse and play your Solarus quest collection.</summary>
+  <description>
+    <p>
+      Solarus Launcher is a desktop GUI frontend that allows to browse and play to Solarus quests, which are video games made with the Solarus game engine.
+    </p>
+  </description>
+  <screenshots>
+    <screenshot type="default">
+      <image>https://www.solarus-games.org/data/en/entities/article/old/2016/07/images/solarus-launcher.png</image>
+    </screenshot>
+  </screenshots>
+  <url type="homepage">https://www.solarus-games.org/</url>
+  <update_contact>christopho@solarus-games.org</update_contact>
+  ​<launchable type="desktop-id">org.solarus_games.solarus.Launcher.desktop</launchable>
+  <project_group>Solarus</project_group>
+  <developer_name>Solarus Team</developer_name>
+  <content_rating type="oars-1.1">
+    <content_attribute id="violence-cartoon">moderate</content_attribute>
+    <content_attribute id="violence-bloodshed">mild</content_attribute>
+  </content_rating>
+  <releases>
+    <release version="1.6.5" date="2021-04-06" />
+  </releases>
+</component>