Android app (TWA) in android/, built with podman; serve assetlinks.json for it

android/app/build.gradle

@@ -0,0 +1,53 @@
+plugins {
+    id "com.android.application"
+}
+
+// The site the app opens. It must serve /.well-known/assetlinks.json naming this app's package and
+// signing key, or Chrome shows its URL bar over the app (see SAW_ANDROID_* in example.env).
+def siteURL = "https://cs2.zio.sh"
+def startPath = "/"
+
+android {
+    namespace "sh.zio.cs2"
+    compileSdk 36
+
+    defaultConfig {
+        // Never change applicationId once installed anywhere: Android treats it as a different app.
+        applicationId "sh.zio.cs2"
+        minSdk 24
+        targetSdk 36
+        // Bump versionCode for every APK you hand out, or Android refuses to update over the old one.
+        versionCode 2
+        versionName "1.0"
+
+        resValue "string", "launch_url", siteURL + startPath
+        resValue "string", "asset_statements",
+            "[{\\\"relation\\\": [\\\"delegate_permission/common.handle_all_urls\\\"], \\\"target\\\": {\\\"namespace\\\": \\\"web\\\", \\\"site\\\": \\\"" + siteURL + "\\\"}}]"
+    }
+
+    signingConfigs {
+        release {
+            storeFile file(System.getenv("KEYSTORE_FILE") ?: "/keystore/release.jks")
+            storePassword System.getenv("KEYSTORE_PASSWORD")
+            keyAlias "release"
+            keyPassword System.getenv("KEYSTORE_PASSWORD")
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled true
+            proguardFiles getDefaultProguardFile("proguard-android-optimize.txt")
+            signingConfig signingConfigs.release
+        }
+    }
+
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_17
+        targetCompatibility JavaVersion.VERSION_17
+    }
+}
+
+dependencies {
+    implementation "com.google.androidbrowserhelper:androidbrowserhelper:2.7.3"
+}