diff --git a/.gitea/workflows/build-appimage.yaml b/.gitea/workflows/build-appimage.yaml
new file mode 100644
index 0000000..c6624a8
--- /dev/null
+++ b/.gitea/workflows/build-appimage.yaml
@@ -0,0 +1,45 @@
+name: Build AppImage
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  build-appimage:
+    runs-on: ubuntu-latest
+    container: node:24-trixie
+    steps:
+      - name: Check out source
+        uses: actions/checkout@v4
+
+      - name: Install build dependencies
+        run: |
+          export DEBIAN_FRONTEND=noninteractive
+          apt-get update
+          apt-get install -y --no-install-recommends \
+            ca-certificates \
+            curl \
+            gobject-introspection \
+            gir1.2-gtk-4.0 \
+            gir1.2-gtk4layershell-1.0 \
+            python3 \
+            python3-cairo \
+            python3-evdev \
+            python3-gi \
+            python3-xlib \
+            squashfs-tools
+
+      - name: Build AppImage
+        run: ./packaging/build-appimage.sh
+
+      - name: Upload AppImage
+        uses: actions/upload-artifact@v4
+        with:
+          name: Korin-Timer.AppImage
+          path: build/Korin-Timer.AppImage
+          if-no-files-found: error
+          retention-days: 30
diff --git a/tests/test_gitea_actions_workflow.py b/tests/test_gitea_actions_workflow.py
new file mode 100644
index 0000000..0cc94a0
--- /dev/null
+++ b/tests/test_gitea_actions_workflow.py
@@ -0,0 +1,25 @@
+"""Regression checks for the AppImage Gitea Actions workflow."""
+
+from pathlib import Path
+import unittest
+
+
+ROOT = Path(__file__).resolve().parents[1]
+WORKFLOW = ROOT / ".gitea" / "workflows" / "build-appimage.yaml"
+
+
+class GiteaActionsWorkflowTests(unittest.TestCase):
+    def test_build_workflow_creates_and_uploads_the_appimage(self) -> None:
+        workflow = WORKFLOW.read_text()
+
+        self.assertIn("on:", workflow)
+        self.assertIn("workflow_dispatch:", workflow)
+        self.assertIn("runs-on: ubuntu-latest", workflow)
+        self.assertIn("container: node:24-trixie", workflow)
+        self.assertIn("./packaging/build-appimage.sh", workflow)
+        self.assertIn("actions/upload-artifact@v4", workflow)
+        self.assertIn("path: build/Korin-Timer.AppImage", workflow)
+
+
+if __name__ == "__main__":
+    unittest.main()