diff --git a/CHANGELOG.md b/CHANGELOG.md
index 41cc7d8..ac220e3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## 0.1.0
+
+* Convert from a Flutter plugin to a pure Dart package; platform-specific code was never used.
+* BREAKING: remove the `StackWalletBackup` class and the method channel / platform interface scaffolding, which only exposed `getPlatformVersion`.
+* Migrate tests from `flutter_test` to `package:test`.
+
 ## 0.0.1
 
 * TODO: Describe initial release.
diff --git a/example/main.dart b/example/main.dart
new file mode 100644
index 0000000..f27ff9d
--- /dev/null
+++ b/example/main.dart
@@ -0,0 +1,18 @@
+import 'dart:convert';
+import 'dart:typed_data';
+
+import 'package:stack_wallet_backup/stack_wallet_backup.dart';
+
+Future<void> main() async {
+  const String passphrase = 'correct horse battery staple';
+  final Uint8List plaintext =
+      Uint8List.fromList(utf8.encode('A secret message to be backed up'));
+
+  // Encrypt with a passphrase
+  final Uint8List blob = await encryptWithPassphrase(passphrase, plaintext);
+  print('Encrypted ${plaintext.length} bytes to a ${blob.length} byte blob');
+
+  // Decrypt with the same passphrase
+  final Uint8List decrypted = await decryptWithPassphrase(passphrase, blob);
+  print('Decrypted: ${utf8.decode(decrypted)}');
+}
diff --git a/pubspec.yaml b/pubspec.yaml
index 52c0186..f601e72 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,11 +1,10 @@
 name: stack_wallet_backup
-description: A new Flutter plugin project.
-version: 0.0.1
+description: Create and restore secure encrypted backups using a passphrase.
+version: 0.1.0
 homepage:
 
 environment:
   sdk: ">=3.0.0 <4.0.0"
-  flutter: ">=3.10.2"
 
 dependencies:
   collection: ^1.16.0
@@ -13,5 +12,5 @@ dependencies:
   tuple: ^2.0.0
 
 dev_dependencies:
-  test: ^1.0.0
+  test: ^1.24.0
   lints: ^6.0.0