attempt to release apk

.github/workflows/build.yml

@@ -16,4 +16,23 @@ jobs:
       - uses: subosito/flutter-action@v2
       - run: flutter pub get
       - run: flutter build apk
+
+      # release the apk
+      - name: Set current date as env variable
+        run: echo "NOW=\"$(git rev-parse --abbrev-ref HEAD) $(date +'%Y-%m-%dT%H:%M:%S')\"" >> $GITHUB_ENV
+      - name: tag snapshot
+        uses: tvdias/github-tagger@v0.0.1
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          tag: ${{ env.NOW }}
+      - name: create new release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: "build/app/outputs/flutter-apk/app-release.apk"
+          name: OptixToolkit ${{ env.NOW }}
+          tag_name: ${{ env.NOW }}
+          draft: false
+          prerelease: false
+
+