diff --git a/.gitignore b/.gitignore
index 77f52e0..edf8cd5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,3 +3,6 @@ build/
 **/build/
 local.properties
 .toolchain/
+
+# local Android SDK path
+local.properties
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index f99aee5..51c6a36 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -11,7 +11,7 @@ android {
         applicationId = "com.mindmachine.mvp"
         minSdk = 26
         targetSdk = 35
-        versionCode = 3
+        versionCode = 4
         versionName = "1.0"
 
         testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
diff --git a/app/src/main/java/com/mindmachine/mvp/MainActivity.kt b/app/src/main/java/com/mindmachine/mvp/MainActivity.kt
index d2b20e6..5f87520 100644
--- a/app/src/main/java/com/mindmachine/mvp/MainActivity.kt
+++ b/app/src/main/java/com/mindmachine/mvp/MainActivity.kt
@@ -186,13 +186,8 @@ fun App(vm: MainViewModel = viewModel()) {
         return
     }
 
-    val startRoute = if (ui.settings.safetyAcknowledged) "home" else "welcome"
+    val startRoute = if (ui.settings.safetyAcknowledged) "home" else "safety"
     NavHost(navController = nav, startDestination = startRoute, modifier = Modifier.background(MaterialTheme.colorScheme.background)) {
-        composable("welcome") {
-            SimpleScreen("MindMachine", "Blinking light + binaural audio. Stereo headphones required for binaural mode. Not a medical device.") {
-                Button(onClick = { nav.navigate("safety") }) { Text("Continue") }
-            }
-        }
         composable("safety") {
             SafetyScreen(
                 onAck = {