diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c256096e..0cad7776 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -44,7 +44,7 @@ jobs:
           name: Browser distribution
           path: './composeApp/build/dist/wasmJs/productionExecutable/'
 
-      - name: Deploy to GithubPages
+      - name: Deploy to Github Pages
         uses: JamesIves/github-pages-deploy-action@v4
         with:
           folder: './composeApp/build/dist/wasmJs/productionExecutable/'
@@ -93,3 +93,38 @@ jobs:
         with:
           name: "Desktop distribution for ${{ matrix.os }}"
           path: 'composeApp/build/compose/binaries/main/app'
+
+  build-android:
+    name: "Build for Android"
+    runs-on: ubuntu-latest
+    permissions:
+      contents: write
+    timeout-minutes: 60
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Validate Gradle Wrapper
+        uses: gradle/wrapper-validation-action@v1
+
+      - name: Copy CI gradle.properties (idk about this)
+        run: mkdir -p ~/.gradle ; cp .github/ci-gradle.properties ~/.gradle/gradle.properties
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'zulu'
+          java-version: 17
+
+      - name: Setup Gradle
+        uses: gradle/gradle-build-action@v2
+
+      - name: Gradle build debug .apk for Android
+        run: ./gradlew assembleDebug
+
+      - name: Upload build output
+        uses: actions/upload-artifact@v4
+        with:
+          name: "Android debug .apk"
+          path: 'composeApp/build/outputs/apk/debug'
+
diff --git a/composeApp/src/commonMain/kotlin/ui/EditClusterScreen.kt b/composeApp/src/commonMain/kotlin/ui/EditClusterScreen.kt
index 3f64c19d..e5d60d73 100644
--- a/composeApp/src/commonMain/kotlin/ui/EditClusterScreen.kt
+++ b/composeApp/src/commonMain/kotlin/ui/EditClusterScreen.kt
@@ -181,13 +181,15 @@ fun ModeToggle(
     Spacer(Modifier.fillMaxHeight().width(8.dp)) // horizontal margin
 }
 
+
 @Composable
 fun EditClusterContent(
     mode: State<SelectionMode>,
     modifier: Modifier = Modifier
 ) {
-    // adding viewModel impl is pain in the ass
+    // NOTE: adding viewModel impl is pain in the ass
     // waiting for decompose 3.0-stable
+    // (use state flows in vM + in ui convert to state with .collectAsStateWithLc)
     val circles = remember { mutableStateListOf<Circle>() }
     circles.addAll(listOf(
         Circle(150.0, 50.0, 50.0),
@@ -304,6 +306,10 @@ fun EditClusterContent(
                     if (mode.value.isSelectingCircles()) {
                         selectCircle(circles, position)?.let { ix ->
                             grabbedCircleIx = ix
+                            if (mode.value == SelectionMode.DRAG) {
+                                selection.clear()
+                                selection.add(ix)
+                            }
                         }
                     }
                 },
@@ -356,7 +362,7 @@ fun EditClusterContent(
             )
         } else if (selection.size > 1) {
             handle = Handle.Scale(selection)
-            // todo
+            // TODO: show rect + handle in a corner
         }
     }
 }