diff --git a/Android.bp b/Android.bp
index e5cfe7a07..a8d835f1e 100644
--- a/Android.bp
+++ b/Android.bp
@@ -16,6 +16,9 @@ android_app {
     proto: {
         type: "lite",
         local_include_dirs: ["app/src/main/proto"],
+        output_params: [
+            "--kotlin_out=$DST_DIR",
+        ],
     },
     static_libs: [
         "kotlin-stdlib-jdk8",
@@ -33,6 +36,7 @@ android_app {
         "kotlinx-coroutines-android",
         "kotlinx-coroutines-core",
         // app backup related libs
+        "seedvault-lib-protobuf-kotlin-lite",
         "seedvault-lib-kotlin-logging-jvm",
         "seedvault-lib-chunker",
         "seedvault-lib-zstd-jni",
diff --git a/app/build.gradle.kts b/app/build.gradle.kts
index 22e6af618..db81278fa 100644
--- a/app/build.gradle.kts
+++ b/app/build.gradle.kts
@@ -111,6 +111,9 @@ android {
                     id("java") {
                         option("lite")
                     }
+                    id("kotlin") {
+                        option("lite")
+                    }
                 }
             }
         }
@@ -177,6 +180,9 @@ dependencies {
     implementation(fileTree("${rootProject.rootDir}/libs/koin-android").include("*.jar"))
     implementation(fileTree("${rootProject.rootDir}/libs/koin-android").include("*.aar"))
 
+    implementation(
+        fileTree("${rootProject.rootDir}/libs").include("protobuf-kotlin-lite-3.21.12.jar")
+    )
     implementation(fileTree("${rootProject.rootDir}/libs").include("seedvault-chunker-0.1.jar"))
     implementation(fileTree("${rootProject.rootDir}/libs").include("zstd-jni-1.5.6-5.aar"))
     implementation(fileTree("${rootProject.rootDir}/libs").include("kotlin-bip39-jvm-1.0.6.jar"))
diff --git a/app/src/main/java/com/stevesoltys/seedvault/settings/SettingsActivity.kt b/app/src/main/java/com/stevesoltys/seedvault/settings/SettingsActivity.kt
index 976cb364c..c9e4cf8c2 100644
--- a/app/src/main/java/com/stevesoltys/seedvault/settings/SettingsActivity.kt
+++ b/app/src/main/java/com/stevesoltys/seedvault/settings/SettingsActivity.kt
@@ -10,6 +10,9 @@ import androidx.preference.Preference
 import androidx.preference.PreferenceFragmentCompat
 import androidx.preference.PreferenceFragmentCompat.OnPreferenceStartFragmentCallback
 import com.stevesoltys.seedvault.R
+import com.stevesoltys.seedvault.proto.SnapshotKt.apk
+import com.stevesoltys.seedvault.proto.copy
+import com.stevesoltys.seedvault.proto.snapshot
 import com.stevesoltys.seedvault.ui.RequireProvisioningActivity
 import com.stevesoltys.seedvault.ui.RequireProvisioningViewModel
 import com.stevesoltys.seedvault.ui.recoverycode.ARG_FOR_NEW_CODE
@@ -28,6 +31,19 @@ class SettingsActivity : RequireProvisioningActivity(), OnPreferenceStartFragmen
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
 
+        val s = snapshot {
+            token = 23
+        }
+        s.copy {
+            name = "bar"
+        }
+        val a = apk {
+            versionCode = 42
+        }
+        a.copy {
+            installer = "foo"
+        }
+
         setContentView(R.layout.activity_fragment_container)
 
         setSupportActionBar(requireViewById(R.id.toolbar))
diff --git a/libs/Android.bp b/libs/Android.bp
index ae63f75ad..957fd4468 100644
--- a/libs/Android.bp
+++ b/libs/Android.bp
@@ -10,6 +10,12 @@ android_library_import {
     extract_jni: true,
 }
 
+java_import {
+    name: "seedvault-lib-protobuf-kotlin-lite",
+    jars: ["protobuf-kotlin-lite-3.21.12.jar"],
+    sdk_version: "current",
+}
+
 java_import {
     name: "seedvault-lib-kotlin-bip39",
     jars: ["kotlin-bip39-jvm-1.0.6.jar"],
diff --git a/libs/protobuf-kotlin-lite-3.21.12.jar b/libs/protobuf-kotlin-lite-3.21.12.jar
new file mode 100644
index 000000000..a16c4cab5
Binary files /dev/null and b/libs/protobuf-kotlin-lite-3.21.12.jar differ