diff --git a/veilid-core/src/tests/android/.gitignore b/veilid-core/src/tests/android/.gitignore
new file mode 100644
index 00000000..f22e976f
--- /dev/null
+++ b/veilid-core/src/tests/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/.idea
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/docs/deployment/android#reference-the-keystore-from-the-app
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/veilid-core/src/tests/android/build.gradle b/veilid-core/src/tests/android/build.gradle
new file mode 100644
index 00000000..495c5038
--- /dev/null
+++ b/veilid-core/src/tests/android/build.gradle
@@ -0,0 +1 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
diff --git a/veilid-core/src/tests/android/gradle/wrapper/gradle-wrapper.properties b/veilid-core/src/tests/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 00000000..41dfb879
--- /dev/null
+++ b/veilid-core/src/tests/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.4-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/veilid-flutter/lib/veilid_crypto.dart b/veilid-flutter/lib/veilid_crypto.dart
index 6edb6358..a6b3bead 100644
--- a/veilid-flutter/lib/veilid_crypto.dart
+++ b/veilid-flutter/lib/veilid_crypto.dart
@@ -215,7 +215,8 @@ abstract class VeilidCryptoSystem {
     final nonce = await randomNonce();
     final saltBytes = nonce.decode();
     final sharedSecret = await deriveSharedSecret(ekbytes, saltBytes);
-    return (await cryptNoAuth(body, nonce, sharedSecret))..addAll(saltBytes);
+    return Uint8List.fromList(
+        (await cryptNoAuth(body, nonce, sharedSecret)) + saltBytes);
   }
 
   Future<Uint8List> decryptNoAuthWithPassword(