diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..c547b8b
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,137 @@
+name: Rust-Flutter CI
+
+on:
+  pull_request:
+  merge_group:
+
+jobs:
+  rust-checks:
+    name: Rust Checks
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./rust
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - name: Rust cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Check formatting
+        run: cargo fmt --all -- --check
+
+      - name: Run clippy
+        run: cargo clippy --all-targets --all-features -- -D warnings
+
+      - name: Build check
+        run: cargo check --all-targets --all-features
+
+      - name: Run tests
+        run: cargo test --all-features
+
+  flutter-checks:
+    name: Flutter Checks
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: '3.29.2'
+          channel: 'stable'
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Verify formatting
+        run: dart format --output=none --set-exit-if-changed .
+
+  build-android:
+    name: Build Android APK
+    needs: [ rust-checks, flutter-checks ]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - name: Rust cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Settup flutter rust bridge
+        run: cargo install flutter_rust_bridge_codegen
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: '3.29.2'
+          channel: 'stable'
+
+      - uses: kuhnroyal/flutter-fvm-config-action/setup@v3
+
+      - name: Make .env file for flutter build
+        uses: SpicyPizza/create-envfile@v2.0
+        with:
+          envkey_ESPLORA_URL: "http://localhost:30000"
+          envkey_ARK_SERVER_URL: "http://localhost:7070"
+          envkey_ARK_NETWORK: "regtest"
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Build rust library
+        run: flutter_rust_bridge_codegen generate
+
+      - name: Build APK
+        run: flutter build apk --debug
+
+  build-ios:
+    name: Build iOS
+    needs: [ rust-checks, flutter-checks ]
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - name: Rust cache
+        uses: Swatinem/rust-cache@v2
+
+      - name: Settup flutter rust bridge
+        run: cargo install flutter_rust_bridge_codegen
+
+      - name: Set up Flutter
+        uses: subosito/flutter-action@v2
+        with:
+          flutter-version: '3.29.2'
+          channel: 'stable'
+
+      - uses: kuhnroyal/flutter-fvm-config-action/setup@v3
+
+      - name: Make .env file for flutter build
+        uses: SpicyPizza/create-envfile@v2.0
+        with:
+          envkey_ESPLORA_URL: "http://localhost:30000"
+          envkey_ARK_SERVER_URL: "http://localhost:7070"
+          envkey_ARK_NETWORK: "regtest"
+
+      - name: Install dependencies
+        run: flutter pub get
+
+      - name: Build rust library
+        run: flutter_rust_bridge_codegen generate
+
+      - name: Build iOS
+        run: flutter build ios --debug --no-codesign
diff --git a/justfile b/justfile
index e0bb789..a8b2290 100644
--- a/justfile
+++ b/justfile
@@ -23,3 +23,6 @@ clippy:
 
 run:
     flutter run
+
+flutter-fmt:
+    dart format  --output=write .
diff --git a/lib/main.dart b/lib/main.dart
index 2300943..1691694 100644
--- a/lib/main.dart
+++ b/lib/main.dart
@@ -51,7 +51,7 @@ Future<Widget> determineStartScreen() async {
     final network = await _settingsService.getNetwork();
 
     logger.i(
-        "Running on ${network} against ark server ${arkServerUrl} and esplora ${esploraUrl}");
+        "Running on $network against ark server $arkServerUrl and esplora $esploraUrl");
 
     if (exists) {
       logger.i("Wallet found, setting up client");
diff --git a/lib/src/ui/screens/dashboard_screen.dart b/lib/src/ui/screens/dashboard_screen.dart
index e35f4a6..a8cc1d8 100644
--- a/lib/src/ui/screens/dashboard_screen.dart
+++ b/lib/src/ui/screens/dashboard_screen.dart
@@ -1,6 +1,5 @@
 import 'package:ark_flutter/src/ui/screens/transaction_history_widget.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'package:ark_flutter/src/logger/logger.dart';
 import 'package:ark_flutter/src/ui/screens/settings_screen.dart';
 import 'package:ark_flutter/src/ui/screens/send_screen.dart';
@@ -13,15 +12,15 @@ class DashboardScreen extends StatefulWidget {
   final String aspId;
 
   const DashboardScreen({
-    Key? key,
+    super.key,
     required this.aspId,
-  }) : super(key: key);
+  });
 
   @override
-  _DashboardScreenState createState() => _DashboardScreenState();
+  DashboardScreenState createState() => DashboardScreenState();
 }
 
-class _DashboardScreenState extends State<DashboardScreen> {
+class DashboardScreenState extends State<DashboardScreen> {
   bool _isBalanceLoading = true;
   bool _isTransactionFetching = true;
   String? _balanceError;
@@ -278,7 +277,7 @@ class _DashboardScreenState extends State<DashboardScreen> {
         borderRadius: BorderRadius.circular(16),
         boxShadow: [
           BoxShadow(
-            color: Colors.amber.withOpacity(0.3),
+            color: Colors.amber.withAlpha((0.3 * 255).round()),
             blurRadius: 8,
             offset: const Offset(0, 3),
           ),
@@ -310,9 +309,9 @@ class _DashboardScreenState extends State<DashboardScreen> {
           ),
           const SizedBox(height: 8),
           if (_balanceError != null)
-            Text(
+            const Text(
               'Error loading balance',
-              style: const TextStyle(
+              style: TextStyle(
                 color: Colors.red,
                 fontSize: 16,
                 fontWeight: FontWeight.bold,
@@ -392,7 +391,7 @@ class _DashboardScreenState extends State<DashboardScreen> {
           height: 32,
           width: 150,
           decoration: BoxDecoration(
-            color: Colors.white.withOpacity(0.2),
+            color: Colors.white.withAlpha((0.2 * 255).round()),
             borderRadius: BorderRadius.circular(4),
           ),
         ),
@@ -401,7 +400,7 @@ class _DashboardScreenState extends State<DashboardScreen> {
           height: 16,
           width: 100,
           decoration: BoxDecoration(
-            color: Colors.white.withOpacity(0.15),
+            color: Colors.white.withAlpha((0.15 * 255).round()),
             borderRadius: BorderRadius.circular(4),
           ),
         ),
diff --git a/lib/src/ui/screens/onboarding_screen.dart b/lib/src/ui/screens/onboarding_screen.dart
index c3cf303..e229f65 100644
--- a/lib/src/ui/screens/onboarding_screen.dart
+++ b/lib/src/ui/screens/onboarding_screen.dart
@@ -9,10 +9,10 @@ class OnboardingScreen extends StatefulWidget {
   const OnboardingScreen({super.key});
 
   @override
-  _OnboardingScreenState createState() => _OnboardingScreenState();
+  OnboardingScreenState createState() => OnboardingScreenState();
 }
 
-class _OnboardingScreenState extends State<OnboardingScreen> {
+class OnboardingScreenState extends State<OnboardingScreen> {
   String? _selectedOption;
   final TextEditingController _secretKeyController = TextEditingController();
   bool _isLoading = false;
@@ -356,7 +356,7 @@ class _OnboardingScreenState extends State<OnboardingScreen> {
                     style: TextStyle(
                       fontSize: 14,
                       color: isSelected
-                          ? Colors.black.withOpacity(0.7)
+                          ? Colors.white.withAlpha((0.7 * 255).round())
                           : Colors.white70,
                     ),
                   ),
diff --git a/lib/src/ui/screens/receive_screen.dart b/lib/src/ui/screens/receive_screen.dart
index 8428deb..da11767 100644
--- a/lib/src/ui/screens/receive_screen.dart
+++ b/lib/src/ui/screens/receive_screen.dart
@@ -1,13 +1,12 @@
 import 'package:ark_flutter/src/rust/api/ark_api.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'package:flutter/rendering.dart';
 import 'package:ark_flutter/src/logger/logger.dart';
+import 'package:flutter/services.dart';
 import 'package:qr_flutter/qr_flutter.dart';
 import 'package:share_plus/share_plus.dart';
 import 'dart:async';
 import 'dart:io';
-import 'dart:typed_data';
 import 'dart:ui' as ui;
 import 'package:path_provider/path_provider.dart';
 
@@ -15,16 +14,15 @@ class ReceiveScreen extends StatefulWidget {
   final String aspId;
 
   const ReceiveScreen({
-    Key? key,
+    super.key,
     required this.aspId,
-  }) : super(key: key);
+  });
 
   @override
-  _ReceiveScreenState createState() => _ReceiveScreenState();
+  ReceiveScreenState createState() => ReceiveScreenState();
 }
 
-class _ReceiveScreenState extends State<ReceiveScreen> {
-  bool _isLoading = true;
+class ReceiveScreenState extends State<ReceiveScreen> {
   String? _error;
 
   String _bip21Address = "";
@@ -34,14 +32,14 @@ class _ReceiveScreenState extends State<ReceiveScreen> {
   bool _showCopyMenu = false;
 
   // Track which addresses have been copied (for showing checkmarks)
-  Map<String, bool> _copiedAddresses = {
+  final Map<String, bool> _copiedAddresses = {
     'BIP21': false,
     'BTC': false,
     'Ark': false,
   };
 
   // Timers for resetting the checkmarks
-  Map<String, Timer?> _checkmarkTimers = {
+  final Map<String, Timer?> _checkmarkTimers = {
     'BIP21': null,
     'BTC': null,
     'Ark': null,
@@ -54,9 +52,6 @@ class _ReceiveScreenState extends State<ReceiveScreen> {
   }
 
   Future<void> _fetchAddresses() async {
-    setState(() {
-      _isLoading = true;
-    });
     try {
       final addresses = await address();
       setState(() {
@@ -69,11 +64,7 @@ class _ReceiveScreenState extends State<ReceiveScreen> {
       setState(() {
         _error = e.toString();
       });
-    } finally {
-      setState(() {
-        _isLoading = false;
-      });
-    }
+    } finally {}
   }
 
   @override
@@ -121,7 +112,7 @@ class _ReceiveScreenState extends State<ReceiveScreen> {
     logger.i("Copied $type address: $address");
   }
 
-  GlobalKey _qrKey = GlobalKey();
+  final GlobalKey _qrKey = GlobalKey();
 
   Future<void> _handleShare() async {
     try {
diff --git a/lib/src/ui/screens/send_screen.dart b/lib/src/ui/screens/send_screen.dart
index 8f46432..1a2a003 100644
--- a/lib/src/ui/screens/send_screen.dart
+++ b/lib/src/ui/screens/send_screen.dart
@@ -1,5 +1,4 @@
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
 import 'package:ark_flutter/src/logger/logger.dart';
 import 'package:ark_flutter/src/ui/screens/sign_transaction_screen.dart';
 
@@ -8,16 +7,16 @@ class SendScreen extends StatefulWidget {
   final double availableSats;
 
   const SendScreen({
-    Key? key,
+    super.key,
     required this.aspId,
     required this.availableSats,
-  }) : super(key: key);
+  });
 
   @override
-  _SendScreenState createState() => _SendScreenState();
+  SendScreenState createState() => SendScreenState();
 }
 
-class _SendScreenState extends State<SendScreen> {
+class SendScreenState extends State<SendScreen> {
   final TextEditingController _addressController = TextEditingController();
   final TextEditingController _amountController = TextEditingController();
   double _usdAmount = 0.0;
diff --git a/lib/src/ui/screens/settings_screen.dart b/lib/src/ui/screens/settings_screen.dart
index a647c07..2bc89f6 100644
--- a/lib/src/ui/screens/settings_screen.dart
+++ b/lib/src/ui/screens/settings_screen.dart
@@ -1,5 +1,4 @@
 import 'package:ark_flutter/src/rust/api/ark_api.dart';
-import 'package:ark_flutter/src/ui/screens/onboarding_screen.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:ark_flutter/src/logger/logger.dart';
@@ -11,15 +10,15 @@ class SettingsScreen extends StatefulWidget {
   final String aspId;
 
   const SettingsScreen({
-    Key? key,
+    super.key,
     required this.aspId,
-  }) : super(key: key);
+  });
 
   @override
-  _SettingsScreenState createState() => _SettingsScreenState();
+  SettingsScreenState createState() => SettingsScreenState();
 }
 
-class _SettingsScreenState extends State<SettingsScreen> {
+class SettingsScreenState extends State<SettingsScreen> {
   String _nsec = 'Unknown';
   Info? _info;
   String _selectedNetwork = 'Regtest';
@@ -496,7 +495,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
                         color: Colors.red),
                     onTap: _showResetWalletDialog,
                   ),
-                ], borderColor: Colors.red.withOpacity(0.3)),
+                ], borderColor: Colors.red.withAlpha((0.3 * 255).round())),
 
                 const SizedBox(height: 40),
               ],
@@ -551,7 +550,7 @@ class _SettingsScreenState extends State<SettingsScreen> {
             } else {
               return child;
             }
-          }).toList(),
+          }),
         ],
       ),
     );
diff --git a/lib/src/ui/screens/sign_transaction_screen.dart b/lib/src/ui/screens/sign_transaction_screen.dart
index e20d522..493e458 100644
--- a/lib/src/ui/screens/sign_transaction_screen.dart
+++ b/lib/src/ui/screens/sign_transaction_screen.dart
@@ -9,17 +9,17 @@ class SignTransactionScreen extends StatefulWidget {
   final double amount;
 
   const SignTransactionScreen({
-    Key? key,
+    super.key,
     required this.aspId,
     required this.address,
     required this.amount,
-  }) : super(key: key);
+  });
 
   @override
-  _SignTransactionScreenState createState() => _SignTransactionScreenState();
+  SignTransactionScreenState createState() => SignTransactionScreenState();
 }
 
-class _SignTransactionScreenState extends State<SignTransactionScreen> {
+class SignTransactionScreenState extends State<SignTransactionScreen> {
   bool _isLoading = false;
 
   void _handleSign() async {
diff --git a/lib/src/ui/screens/transaction_details_dialog.dart b/lib/src/ui/screens/transaction_details_dialog.dart
index 1bb56b8..2654ac5 100644
--- a/lib/src/ui/screens/transaction_details_dialog.dart
+++ b/lib/src/ui/screens/transaction_details_dialog.dart
@@ -13,14 +13,14 @@ class TransactionDetailsDialog extends StatelessWidget {
   final String dialogTitle;
 
   const TransactionDetailsDialog({
-    Key? key,
+    super.key,
     required this.dialogTitle,
     required this.txid,
     required this.createdAt,
     this.confirmedAt,
     required this.amountSats,
     required this.isSettled,
-  }) : super(key: key);
+  });
 
   Future<void> _handleSettlement(BuildContext context) async {
     try {
@@ -173,7 +173,7 @@ class TransactionDetailsDialog extends StatelessWidget {
                   Container(
                     padding: const EdgeInsets.all(12),
                     decoration: BoxDecoration(
-                      color: Colors.amber.withOpacity(0.2),
+                      color: Colors.amber..withAlpha((0.2 * 255).round()),
                       borderRadius: BorderRadius.circular(8),
                     ),
                     child: const Text(
diff --git a/lib/src/ui/screens/transaction_history_widget.dart b/lib/src/ui/screens/transaction_history_widget.dart
index a5ae6d3..fe9e49c 100644
--- a/lib/src/ui/screens/transaction_history_widget.dart
+++ b/lib/src/ui/screens/transaction_history_widget.dart
@@ -9,18 +9,18 @@ class TransactionHistoryWidget extends StatefulWidget {
   final bool loading;
 
   const TransactionHistoryWidget({
-    Key? key,
+    super.key,
     required this.aspId,
     required this.transactions,
     required this.loading,
-  }) : super(key: key);
+  });
 
   @override
-  _TransactionHistoryWidgetState createState() =>
-      _TransactionHistoryWidgetState();
+  TransactionHistoryWidgetState createState() =>
+      TransactionHistoryWidgetState();
 }
 
-class _TransactionHistoryWidgetState extends State<TransactionHistoryWidget> {
+class TransactionHistoryWidgetState extends State<TransactionHistoryWidget> {
   String? _error;
 
   @override
diff --git a/lib/src/ui/screens/transaction_success_screen.dart b/lib/src/ui/screens/transaction_success_screen.dart
index 5bd366b..2859dac 100644
--- a/lib/src/ui/screens/transaction_success_screen.dart
+++ b/lib/src/ui/screens/transaction_success_screen.dart
@@ -6,10 +6,10 @@ class TransactionSuccessScreen extends StatelessWidget {
   final double amount;
 
   const TransactionSuccessScreen({
-    Key? key,
+    super.key,
     required this.aspId,
     required this.amount,
-  }) : super(key: key);
+  });
 
   @override
   Widget build(BuildContext context) {
@@ -48,7 +48,8 @@ class TransactionSuccessScreen extends StatelessWidget {
                       borderRadius: BorderRadius.circular(4),
                       boxShadow: [
                         BoxShadow(
-                          color: const Color(0xFF7E71F0).withOpacity(0.5),
+                          color: const Color(0xFF7E71F0)
+                              .withAlpha((0.5 * 255).round()),
                           blurRadius: 10,
                           offset: const Offset(0, 3),
                         ),