diff --git a/.github/workflows/static-analysis.yaml b/.github/workflows/static-analysis.yaml
index 556d5d0..faef945 100644
--- a/.github/workflows/static-analysis.yaml
+++ b/.github/workflows/static-analysis.yaml
@@ -1,6 +1,8 @@
 name: Static Analysis
 on:
   push:
+    branches:
+      - master
   pull_request:
 
 concurrency:
@@ -23,15 +25,20 @@ jobs:
           echo "$HOME/.pub-cache/bin" >> $GITHUB_PATH
           fvm install 3.10.0 --setup
           fvm install stable --setup
+          fvm global 3.10.0
+          fvm flutter doctor
           fvm global stable
+          fvm flutter doctor
       - name: Pub get
         run: dart pub get
       - name: Format
-        run: dart format . --set-exit-if-changed
+        run: dart format --set-exit-if-changed .
       - name: Analyze
-        run: dart analyze
+        run: dart analyze --fatal-infos
+      - name: custom_lint
+        run: dart run custom_lint
       - name: Test
-        run: dart test --timeout 120s --concurrency 1
+        run: dart test
       - name: Pana
         run: |
           dart pub global activate pana
diff --git a/.gitignore b/.gitignore
index 2c8ce07..35c4ba9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,4 +10,6 @@ build/
 pubspec.lock
 
 # macOS
-.DS_Store
\ No newline at end of file
+.DS_Store
+
+*.log
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9ebadd6..7778567 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+## 1.36.0
+
+- Improves exit codes
+- Adds safety checks for FVM usage
+- Skips `pub get` in all example projects
+- Bumps Dart SDK constraint to `^3.0.0`
+
 ## 1.35.0
 - `puby link` no longer runs `pub get --offline` in flutter example projects
 - Fixes `--no-fvm` flag for `puby link`
diff --git a/analysis_options.yaml b/analysis_options.yaml
index 9ecdaf3..1b1aabe 100644
--- a/analysis_options.yaml
+++ b/analysis_options.yaml
@@ -1 +1 @@
-include: package:rexios_lints/dart/package.yaml
+include: package:rexios_lints/dart/package_extra.yaml
diff --git a/bin/commands.dart b/bin/commands.dart
index f6042d8..f7dbab4 100644
--- a/bin/commands.dart
+++ b/bin/commands.dart
@@ -1,9 +1,10 @@
 import 'dart:convert';
 import 'dart:io';
 
+import 'package:io/io.dart';
 import 'package:puby/command.dart';
+import 'package:io/ansi.dart';
 import 'package:puby/engine.dart';
-import 'package:puby/pens.dart';
 import 'package:puby/project.dart';
 import 'package:puby/time.dart';
 
@@ -65,7 +66,7 @@ abstract class Commands {
         // hanging
         if (!command.silent) {
           print(
-            redPen(
+            red.wrap(
               'Run `fvm install ${flutterVersionNotInstalledMatch[1]}` first',
             ),
           );
@@ -87,7 +88,7 @@ extension ProjectCommandExtension on ProjectCommand {
     if (resolved.exclude) return 0;
 
     final finalArgs = [
-      if (!raw) ...resolved.engine.args,
+      if (!raw) ...resolved.engine.prefixArgs,
       ...args,
     ];
 
@@ -95,7 +96,7 @@ extension ProjectCommandExtension on ProjectCommand {
     final pathString =
         resolved.path == '.' ? 'current directory' : resolved.path;
     if (!silent) {
-      print(greenPen('Running "$argString" in $pathString...'));
+      print(green.wrap('Running "$argString" in $pathString...'));
     }
 
     final process = await Process.start(
@@ -124,12 +125,12 @@ extension ProjectCommandExtension on ProjectCommand {
         .map(_decoder.convert)
         .listen((line) {
       if (!silent) {
-        stderr.write(redPen(line));
+        stderr.write(red.wrap(line));
       }
       err.add(line);
     }).asFuture();
 
-    final processExitCode = await process.exitCode;
+    final exitCode = await process.exitCode;
 
     if (!killed) {
       // If we do not wait for these streams to finish, output could end up
@@ -140,38 +141,20 @@ extension ProjectCommandExtension on ProjectCommand {
     }
 
     stopwatch.stop();
+
     // Skip error handling if the command was successful or this is a raw command
-    if (raw || processExitCode == 0) {
+    if (raw || exitCode == ExitCode.success.code) {
       print(
-        greenPen(
+        green.wrap(
           'Ran "$argString" in $pathString (${stopwatch.prettyPrint()})',
         ),
       );
-
-      return processExitCode;
-    }
-
-    if (err.any(
-      (e) => e.contains(
-        'Flutter users should run `flutter pub get` instead of `dart pub get`.',
-      ),
-    )) {
-      // If a project doesn't explicitly depend on flutter, it is not possible
-      // to know if it's dependencies require flutter. So retry if that's the
-      // reason for failure.
-      print(yellowPen('Retrying with "flutter" engine'));
-      return runInProject(resolved.copyWith(engine: Engine.flutter));
-    }
-
-    final unknownSubcommandMatch =
-        RegExp(r'Could not find a subcommand named "(.+?)" for ".+? pub"\.')
-            .firstMatch(err.join('\n'));
-    if (unknownSubcommandMatch != null) {
+    } else if (exitCode == ExitCode.usage.code) {
       // Do not attempt to run in other projects if the command is unknown
-      print(redPen('Unknown command: ${unknownSubcommandMatch[1]}'));
-      exit(1);
+      print(red.wrap('Unknown command. Exiting...'));
+      exit(exitCode);
     }
 
-    return processExitCode;
+    return exitCode;
   }
 }
diff --git a/bin/fvm.dart b/bin/fvm.dart
new file mode 100644
index 0000000..a717d49
--- /dev/null
+++ b/bin/fvm.dart
@@ -0,0 +1,33 @@
+import 'dart:io';
+
+import 'package:pub_semver/pub_semver.dart';
+import 'package:io/ansi.dart';
+
+final minFvmVersion = Version.parse('3.0.0');
+
+void fvmCheck() {
+  try {
+    final fvmVersionResult = Process.runSync('fvm', ['--version']);
+    final fvmVersion = Version.parse(fvmVersionResult.stdout.toString().trim());
+    if (fvmVersion < minFvmVersion) {
+      print(
+        yellow.wrap(
+          '''
+This version of puby expects FVM version $minFvmVersion or higher
+FVM version $fvmVersion is installed
+Commands in projects configured with FVM may fail
+''',
+        ),
+      );
+    }
+  } catch (e) {
+    print(
+      red.wrap(
+        '''
+FVM is not installed
+Commands in projects configured with FVM will fail
+''',
+      ),
+    );
+  }
+}
diff --git a/bin/link.dart b/bin/link.dart
index 381bd40..ec97434 100644
--- a/bin/link.dart
+++ b/bin/link.dart
@@ -2,7 +2,7 @@ import 'dart:async';
 
 import 'package:flutter_tools_task_queue/flutter_tools_task_queue.dart';
 import 'package:puby/command.dart';
-import 'package:puby/pens.dart';
+import 'package:io/ansi.dart';
 import 'package:puby/project.dart';
 import 'package:puby/pub.dart';
 import 'package:puby/time.dart';
@@ -42,15 +42,17 @@ Future<int> linkDependencies({
           dependencies.addAll(result.packages);
           print('Resolved dependencies for ${resolved.path}');
         } catch (e) {
-          print(redPen('Failed to resolve dependencies for ${resolved.path}'));
-          print(redPen(e));
+          print(
+            red.wrap('Failed to resolve dependencies for ${resolved.path}'),
+          );
+          print(red.wrap(e.toString()));
         }
       }),
     );
   }
   await resolutionQueue.tasksComplete;
   print(
-    greenPen(
+    green.wrap(
       'Resolved all dependencies in ${resolutionStopwatch.prettyPrint()}',
     ),
   );
@@ -69,16 +71,18 @@ Future<int> linkDependencies({
           }
         } catch (e) {
           print(
-            redPen('Failed to download ${package.name} ${package.version}'),
+            red.wrap('Failed to download ${package.name} ${package.version}'),
           );
-          print(redPen(e));
+          print(red.wrap(e.toString()));
         }
       }),
     );
   }
   await downloadQueue.tasksComplete;
   print(
-    greenPen('Downloaded all packages in ${downloadStopwatch.prettyPrint()}\n'),
+    green.wrap(
+      'Downloaded all packages in ${downloadStopwatch.prettyPrint()}\n',
+    ),
   );
 
   // Stop all stopwatches
diff --git a/bin/projects.dart b/bin/projects.dart
index 58a2337..a52f6ee 100644
--- a/bin/projects.dart
+++ b/bin/projects.dart
@@ -6,7 +6,7 @@ import 'package:pubspec_parse/pubspec_parse.dart';
 import 'package:puby/command.dart';
 import 'package:puby/config.dart';
 import 'package:puby/engine.dart';
-import 'package:puby/pens.dart';
+import 'package:io/ansi.dart';
 import 'package:puby/project.dart';
 import 'package:path/path.dart' as p;
 
@@ -31,18 +31,18 @@ List<Project> findProjects() {
     final path = p.relative(absolutePath);
     final config = PubyConfig.fromProjectPath(path);
 
-    late final Pubspec? pubspec;
+    final Pubspec pubspec;
     try {
       pubspec = Pubspec.parse(pubspecEntity.readAsStringSync());
     } catch (e) {
-      print(redPen('Error parsing pubspec: $path'));
-      pubspec = null;
+      print(red.wrap('Error parsing pubspec: $path'));
+      continue;
     }
 
     final Engine engine;
     if (fvmPaths.any(absolutePath.startsWith)) {
       engine = Engine.fvm;
-    } else if (pubspec?.dependencies['flutter'] != null) {
+    } else if (pubspec.dependencies['flutter'] != null) {
       engine = Engine.flutter;
     } else {
       engine = Engine.dart;
@@ -91,14 +91,13 @@ extension ProjectExtension on Project {
     }
 
     if (message != null && !command.silent) {
-      print(yellowPen(message));
+      print(yellow.wrap(message));
     }
     return newEngine;
   }
 
   bool _defaultExclude(Command command) {
-    final isPubGetInFlutterExample = engine.isFlutter &&
-        example &&
+    final isPubGetInExample = example &&
         command.args.length >= 2 &&
         command.args[0] == 'pub' &&
         command.args[1] == 'get';
@@ -112,9 +111,9 @@ extension ProjectExtension on Project {
     } else if (path.startsWith('build/') || path.contains('/build/')) {
       message = 'Skipping project in build folder: $path';
       skip = true;
-    } else if (isPubGetInFlutterExample) {
-      // Skip flutter pub get in example projects since flutter does it anyways
-      message = 'Skipping flutter example project: $path';
+    } else if (isPubGetInExample) {
+      // Skip pub get in example projects since it happens anyways
+      message = 'Skipping example project: $path';
       skip = true;
     } else {
       message = null;
@@ -122,7 +121,7 @@ extension ProjectExtension on Project {
     }
 
     if (message != null && !command.silent) {
-      print(yellowPen(message));
+      print(yellow.wrap(message));
     }
     return skip;
   }
@@ -132,7 +131,7 @@ extension ProjectExtension on Project {
 
     final skip = config.excludes.any(argString.startsWith);
     if (skip && !command.silent) {
-      print(yellowPen('Skipping project with exclusion: $path'));
+      print(yellow.wrap('Skipping project with exclusion: $path'));
     }
 
     return skip;
@@ -167,7 +166,7 @@ extension ProjectExtension on Project {
       }
       return Version.parse(versionString);
     } catch (e) {
-      print(redPen('Unable to determine FVM Flutter version: $path'));
+      print(red.wrap('Unable to determine FVM Flutter version: $path'));
       return null;
     }
   }
diff --git a/bin/puby.dart b/bin/puby.dart
index 236ab08..7fe9fba 100644
--- a/bin/puby.dart
+++ b/bin/puby.dart
@@ -2,14 +2,17 @@ import 'dart:async';
 import 'dart:io';
 
 import 'package:flutter_tools_task_queue/flutter_tools_task_queue.dart';
+import 'package:io/io.dart';
 import 'package:pub_update_checker/pub_update_checker.dart';
 import 'package:puby/command.dart';
-import 'package:puby/pens.dart';
+import 'package:puby/engine.dart';
+import 'package:io/ansi.dart';
 import 'package:puby/project.dart';
 import 'package:puby/time.dart';
 
 import 'commands.dart';
 import 'projects.dart';
+import 'fvm.dart';
 
 const help = '''
 Commands:
@@ -30,7 +33,7 @@ void main(List<String> arguments) async {
   final newVersion = await PubUpdateChecker.check();
   if (newVersion != null) {
     print(
-      yellowPen(
+      yellow.wrap(
         'There is an update available: $newVersion. Run `dart pub global activate puby` to update.',
       ),
     );
@@ -41,18 +44,22 @@ void main(List<String> arguments) async {
       arguments.first == '--help';
 
   if (showHelp) {
-    print(magentaPen(help));
-    exit(1);
+    print(magenta.wrap(help));
+    exit(ExitCode.success.code);
   }
 
   print('Finding projects...');
   final projects = findProjects();
   if (projects.isEmpty) {
-    print(redPen('No projects found in the current directory'));
-    exit(1);
+    print(red.wrap('No projects found in the current directory'));
+    exit(ExitCode.usage.code);
   }
 
-  print(greenPen('Found ${projects.length} projects\n'));
+  print(green.wrap('Found ${projects.length} projects\n'));
+
+  if (projects.any((e) => e.engine == Engine.fvm)) {
+    fvmCheck();
+  }
 
   final firstArg = arguments.first;
   final convenienceCommand = Commands.convenience[firstArg];
@@ -121,13 +128,13 @@ Future<int> runInAllProjects(
   final time = stopwatch.prettyPrint();
 
   if (exitCode != 0) {
-    print(redPen('One or more commands failed ($time)'));
-    print(redPen('Failures:'));
+    print(red.wrap('One or more commands failed ($time)'));
+    print(red.wrap('Failures:'));
     for (final failure in failures) {
-      print(redPen('  $failure'));
+      print(red.wrap('  $failure'));
     }
   } else {
-    print(greenPen('All commands succeeded ($time)'));
+    print(green.wrap('All commands succeeded ($time)'));
   }
 
   print('');
diff --git a/lib/engine.dart b/lib/engine.dart
index bebe784..cb956dc 100644
--- a/lib/engine.dart
+++ b/lib/engine.dart
@@ -13,7 +13,7 @@ enum Engine {
   bool get isFlutter => {flutter, fvm}.contains(this);
 
   /// The arguments required to call the engine
-  List<String> get args {
+  List<String> get prefixArgs {
     switch (this) {
       case Engine.dart:
       case Engine.flutter:
diff --git a/lib/pens.dart b/lib/pens.dart
deleted file mode 100644
index 49720b8..0000000
--- a/lib/pens.dart
+++ /dev/null
@@ -1,13 +0,0 @@
-import 'package:ansicolor/ansicolor.dart';
-
-/// Magenta pen
-final magentaPen = AnsiPen()..magenta();
-
-/// Green pen
-final greenPen = AnsiPen()..green();
-
-/// Yellow pen
-final yellowPen = AnsiPen()..yellow();
-
-/// Red pen
-final redPen = AnsiPen()..red();
diff --git a/pubspec.yaml b/pubspec.yaml
index 0a4547f..8ec5220 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -1,24 +1,24 @@
 name: puby
 description: Run commands in all projects in the current directory. Handle monorepos with ease.
-version: 1.35.0
+version: 1.36.0
 homepage: https://github.com/Rexios80/puby
 
 environment:
-  sdk: ">=2.19.0 <4.0.0"
+  sdk: ^3.0.0
 
 dependencies:
   yaml: ^3.1.1
   pubspec_parse: ^1.2.1
   path: ^1.8.1
-  ansicolor: ^2.0.1
   pub_update_checker: ^1.2.0
   flutter_tools_task_queue: ^1.0.0
-  dart_pub: 0.0.1
+  dart_pub: 0.0.3
   pub_semver: ^2.1.4
+  io: ^1.0.4
 
 dev_dependencies:
   test: ^1.20.2
-  rexios_lints: ^6.0.1
+  rexios_lints: ^8.2.0
 
 executables:
   puby: puby
diff --git a/test/clean_test.dart b/test/clean_test.dart
index 97d5c7e..d9ec358 100644
--- a/test/clean_test.dart
+++ b/test/clean_test.dart
@@ -1,3 +1,4 @@
+import 'package:io/io.dart';
 import 'package:path/path.dart' as p;
 import 'package:test/test.dart';
 
@@ -8,7 +9,7 @@ void main() {
     final result = await testCommand(['clean']);
     final stdout = result.stdout;
 
-    expect(result.exitCode, 0);
+    expect(result.exitCode, ExitCode.success.code);
 
     // dart
     expectLine(stdout, ['dart_puby_test', 'flutter clean']);
diff --git a/test/config_test.dart b/test/config_test.dart
new file mode 100644
index 0000000..82280bc
--- /dev/null
+++ b/test/config_test.dart
@@ -0,0 +1,30 @@
+import 'package:io/io.dart';
+import 'package:test/test.dart';
+
+import 'test_utils.dart';
+import 'package:path/path.dart' as path;
+
+void main() {
+  group('config', () {
+    test('exclude', () async {
+      final result = await testCommand(
+        ['gen'],
+        projects: {
+          'puby_yaml_test': {
+            'pubspec.yaml': pubspec('puby_yaml_test'),
+            'puby.yaml': '''
+exclude:
+  - pub run build_runner
+''',
+          },
+        },
+      );
+      final stdout = result.stdout;
+
+      // Since the code generation doesn't actually run the command should succeed
+      expect(result.exitCode, ExitCode.success.code);
+
+      expectLine(stdout, [path.join('puby_yaml_test'), 'Skip']);
+    });
+  });
+}
diff --git a/test/exec_test.dart b/test/exec_test.dart
index c0c5418..5c25e94 100644
--- a/test/exec_test.dart
+++ b/test/exec_test.dart
@@ -1,3 +1,4 @@
+import 'package:io/io.dart';
 import 'package:path/path.dart' as p;
 import 'package:test/test.dart';
 
@@ -8,7 +9,7 @@ void main() {
     final result = await testCommand(['exec', 'echo', 'foo']);
     final stdout = result.stdout;
 
-    expect(result.exitCode, 0);
+    expect(result.exitCode, ExitCode.success.code);
     // dart
     expectLine(stdout, [
       'dart_puby_test',
diff --git a/test/fvm_version_not_installed_test.dart b/test/fvm_version_not_installed_test.dart
index 5c8afc8..102aebc 100644
--- a/test/fvm_version_not_installed_test.dart
+++ b/test/fvm_version_not_installed_test.dart
@@ -1,3 +1,4 @@
+import 'package:io/io.dart';
 import 'package:test/test.dart';
 
 import 'test_utils.dart';
@@ -6,11 +7,16 @@ void main() {
   test('FVM version not installed', () async {
     final result = await testCommand(
       ['get'],
-      workingDirectory: 'test_resources_2/fvm_version_not_installed_test',
+      projects: {
+        'fvm_version_not_installed_test': {
+          'pubspec.yaml': pubspec('fvm_version_not_installed_test'),
+          '.fvmrc': fvmrc('1.17.0'),
+        },
+      },
     );
     final stdout = result.stdout;
 
-    expect(result.exitCode, isNot(0));
+    expect(result.exitCode, isNot(ExitCode.success.code));
     expectLine(stdout, ['Run `fvm install 1.17.0` first']);
   });
 }
diff --git a/test/gen_test.dart b/test/gen_test.dart
index 3cc9884..3a70654 100644
--- a/test/gen_test.dart
+++ b/test/gen_test.dart
@@ -1,4 +1,4 @@
-import 'package:path/path.dart' as p;
+import 'package:io/io.dart';
 import 'package:test/test.dart';
 
 import 'test_utils.dart';
@@ -10,22 +10,10 @@ void main() {
     final result = await testCommand(['gen']);
     final stdout = result.stdout;
 
-    // Since these projects have no code generation, the command should fail
-    expect(result.exitCode, isNot(0));
+    expect(result.exitCode, isNot(ExitCode.success.code));
 
-    // dart
     expectLine(stdout, ['dart_puby_test', 'dart $argString']);
-    // Explicit exclusion
-    expectLine(stdout, [p.join('dart_puby_test', 'example'), 'Skip']);
-
-    // flutter
     expectLine(stdout, ['flutter_puby_test', 'flutter $argString']);
-    // Explicit exclusion
-    expectLine(stdout, [p.join('flutter_puby_test', 'example'), 'Skip']);
-
-    // fvm
     expectLine(stdout, ['fvm_puby_test', 'fvm flutter $argString']);
-    // Explicit exclusion
-    expectLine(stdout, [p.join('fvm_puby_test', 'example'), 'Skip']);
   });
 }
diff --git a/test/link_test.dart b/test/link_test.dart
index dd5f629..dbc93bc 100644
--- a/test/link_test.dart
+++ b/test/link_test.dart
@@ -1,48 +1,69 @@
 import 'dart:io';
 
-import 'package:path/path.dart' as p;
+import 'package:io/io.dart';
+import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 
 import 'test_utils.dart';
 
 void main() {
-  test('puby link', () async {
-    final result = await testCommand(['link']);
-    final stdout = result.stdout;
+  test(
+    'puby link',
+    () async {
+      // Pub get must run before link will work in FVM projects
+      await testCommand(['get']);
+      final result = await testCommand(['link']);
+      final stdout = result.stdout;
 
-    expect(result.exitCode, 0);
+      expect(result.exitCode, ExitCode.success.code);
 
-    // dart
-    expectLine(stdout, ['dart_puby_test', 'Resolved dependencies for']);
-    expectLine(stdout, ['dart_puby_test', 'dart pub get --offline']);
-    expectLine(
-      stdout,
-      [p.join('dart_puby_test', 'example'), 'dart pub get --offline'],
-    );
+      // dart
+      expectLine(stdout, ['dart_puby_test', 'Resolved dependencies for']);
+      expectLine(stdout, ['dart_puby_test', 'dart pub get --offline']);
+      // The pub get should NOT run in the example app
+      expectLine(
+        stdout,
+        [path.join('dart_puby_test', 'example'), 'dart pub get --offline'],
+        matches: false,
+      );
 
-    // flutter
-    expectLine(stdout, ['flutter_puby_test', 'Resolved dependencies for']);
-    expectLine(stdout, ['flutter_puby_test', 'flutter pub get --offline']);
-    // The link should run in the example app
-    expectLine(
-      stdout,
-      [p.join('flutter_puby_test', 'example'), 'Resolved dependencies for'],
-    );
-    // The pub get should NOT run in the example app
-    expectLine(
-      stdout,
-      [p.join('flutter_puby_test', 'example'), 'flutter pub get --offline'],
-      matches: false,
-    );
+      // flutter
+      expectLine(stdout, ['flutter_puby_test', 'Resolved dependencies for']);
+      expectLine(stdout, ['flutter_puby_test', 'flutter pub get --offline']);
+      // The link should run in the example app
+      expectLine(
+        stdout,
+        [
+          path.join('flutter_puby_test', 'example'),
+          'Resolved dependencies for',
+        ],
+      );
+      // The pub get should NOT run in the example app
+      expectLine(
+        stdout,
+        [
+          path.join('flutter_puby_test', 'example'),
+          'flutter pub get --offline',
+        ],
+        matches: false,
+      );
 
-    // fvm
-    expectLine(stdout, ['fvm_puby_test', 'Resolved dependencies for']);
-    expectLine(stdout, ['fvm_puby_test', 'fvm flutter pub get --offline']);
-    // Ensure the correct flutter version was used
-    expect(
-      File('test_resources/fvm_puby_test/.dart_tool/version')
-          .readAsStringSync(),
-      '3.10.0',
-    );
-  });
+      // fvm
+      expectLine(stdout, ['fvm_puby_test', 'Resolved dependencies for']);
+      expectLine(stdout, ['fvm_puby_test', 'fvm flutter pub get --offline']);
+      // Ensure the correct flutter version was used
+      expect(
+        File(
+          path.join(
+            result.workingDirectory,
+            'fvm_puby_test',
+            '.dart_tool',
+            'version',
+          ),
+        ).readAsStringSync(),
+        '3.10.0',
+      );
+    },
+    timeout: const Timeout(Duration(seconds: 120)),
+  );
 }
diff --git a/test/mup_test.dart b/test/mup_test.dart
index 96d8c8f..69205a4 100644
--- a/test/mup_test.dart
+++ b/test/mup_test.dart
@@ -1,3 +1,4 @@
+import 'package:io/io.dart';
 import 'package:path/path.dart' as p;
 import 'package:test/test.dart';
 
@@ -12,7 +13,7 @@ void main() {
       final result = await testCommand(['mup']);
       final stdout = result.stdout;
 
-      expect(result.exitCode, 0);
+      expect(result.exitCode, ExitCode.success.code);
 
       // dart
       expectLine(stdout, ['dart_puby_test', '"dart $argString"']);
diff --git a/test/no_fvm_test.dart b/test/no_fvm_test.dart
index 33cf3e7..bf5015e 100644
--- a/test/no_fvm_test.dart
+++ b/test/no_fvm_test.dart
@@ -1,42 +1,51 @@
 import 'dart:io';
 
+import 'package:io/io.dart';
 import 'package:test/test.dart';
-import 'package:path/path.dart' as p;
+import 'package:path/path.dart' as path;
 
 import 'test_utils.dart';
 
 const message = 'Project uses FVM, but FVM support is disabled';
 
 void main() {
-  test('--no-fvm', () async {
-    final result = await testCommand(['get', '--no-fvm']);
-    final stdout = result.stdout;
-
-    expect(result.exitCode, 0);
-    expectLine(stdout, ['fvm_puby_test', message]);
-    // Ensure the FVM Flutter version was not used
-    expect(
-      File('test_resources/fvm_puby_test/.dart_tool/version')
-          .readAsStringSync(),
-      isNot('3.10.0'),
-    );
-  });
-
-  test('--no-fvm on convenience command', () async {
-    final result = await testCommand(['mup', '--no-fvm']);
-    final stdout = result.stdout;
-
-    expect(result.exitCode, 0);
-    expectLine(stdout, ['fvm_puby_test', message]);
-  });
-
-  test('--no-fvm on link command', () async {
-    final result = await testCommand(['link', '--no-fvm']);
-    final stdout = result.stdout;
-
-    expect(result.exitCode, 0);
-    expectLine(stdout, ['fvm_puby_test', message]);
-    expectLine(stdout, [p.join('fvm_puby_test', 'example'), message]);
-    expectLine(stdout, [p.join('fvm_puby_test', 'nested'), message]);
+  group('--no-fvm', () {
+    test('on pub get', () async {
+      final result = await testCommand(['get', '--no-fvm']);
+      final stdout = result.stdout;
+
+      expect(result.exitCode, ExitCode.success.code);
+      expectLine(stdout, ['fvm_puby_test', message]);
+      // Ensure the FVM Flutter version was not used
+      expect(
+        File(
+          path.join(
+            result.workingDirectory,
+            'fvm_puby_test',
+            '.dart_tool',
+            'version',
+          ),
+        ).readAsStringSync(),
+        isNot('3.10.0'),
+      );
+    });
+
+    test('on convenience command', () async {
+      final result = await testCommand(['mup', '--no-fvm']);
+      final stdout = result.stdout;
+
+      expect(result.exitCode, ExitCode.success.code);
+      expectLine(stdout, ['fvm_puby_test', message]);
+    });
+
+    test('on link command', () async {
+      final result = await testCommand(['link', '--no-fvm']);
+      final stdout = result.stdout;
+
+      expect(result.exitCode, ExitCode.success.code);
+      expectLine(stdout, ['fvm_puby_test', message]);
+      expectLine(stdout, [path.join('fvm_puby_test', 'example'), message]);
+      expectLine(stdout, [path.join('fvm_puby_test', 'nested'), message]);
+    });
   });
 }
diff --git a/test/pub_test.dart b/test/pub_test.dart
index 249c8d0..62f21d7 100644
--- a/test/pub_test.dart
+++ b/test/pub_test.dart
@@ -1,50 +1,95 @@
-import 'package:path/path.dart' as p;
+import 'package:io/io.dart';
+import 'package:path/path.dart' as path;
 import 'package:test/test.dart';
 
 import 'test_utils.dart';
 
 void main() {
-  test('[engine] pub get', () async {
-    final result = await testCommand(['get']);
-    final stdout = result.stdout;
-
-    expect(result.exitCode, 0);
-
-    // project in build folder
-    expectLine(stdout, [p.join('build_folder_test', 'build', 'web'), 'Skip']);
-
-    // dart
-    expectLine(stdout, ['dart_puby_test', 'dart pub get']);
-    expectLine(stdout, [p.join('dart_puby_test', 'example'), 'dart pub get']);
-
-    // flutter
-    expectLine(stdout, ['flutter_puby_test', 'flutter pub get']);
-    // Default exclusion
-    expectLine(stdout, [p.join('flutter_puby_test', 'example'), 'Skip']);
-    // Flutter pub get should run in the example project anyways
-    expectLine(stdout, ['Resolving dependencies in ./example...']);
-
-    // fvm
-    expectLine(stdout, ['fvm_puby_test', 'fvm flutter pub get']);
-    // Default exclusion
-    expectLine(stdout, [p.join('fvm_puby_test', 'example'), 'Skip']);
-    // Flutter pub get should run in the example project anyways
-    // Can't test this with fvm since the output is the same as flutter
-    // expectLine(stdout, ['example', 'fvm flutter pub get']);
-    expectLine(
-      stdout,
-      [p.join('fvm_puby_test', 'nested'), 'fvm flutter pub get'],
-    );
-
-    // invalid_pubspec
-    expectLine(stdout, ['invalid_pubspec_test', 'Error parsing pubspec']);
-
-    // transitive flutter
-    // This one should fail
-    // TODO: This isn't failing anymore for some reason. Remove this feature?
-    expectLine(stdout, ['transitive_flutter_test', 'dart pub get']);
-
-    // This one should succeed
-    // expectLine(stdout, ['transitive_flutter_test', 'flutter pub get']);
+  group('[engine] pub get', () {
+    test('runs in all projects', () async {
+      final result = await testCommand(['get']);
+      final stdout = result.stdout;
+
+      expect(result.exitCode, ExitCode.success.code);
+
+      expectLine(stdout, ['dart_puby_test', 'dart pub get']);
+      expectLine(stdout, ['flutter_puby_test', 'flutter pub get']);
+      expectLine(stdout, ['fvm_puby_test', 'fvm flutter pub get']);
+      expectLine(
+        stdout,
+        [path.join('fvm_puby_test', 'nested'), 'fvm flutter pub get'],
+      );
+    });
+
+    test('handles invlaid pubspec', () async {
+      final result = await testCommand(
+        ['get'],
+        projects: {
+          'invalid_pubspec_test': {
+            'pubspec.yaml': 'invalid',
+          },
+        },
+      );
+      final stdout = result.stdout;
+
+      expect(result.exitCode, ExitCode.usage.code);
+
+      expectLine(stdout, ['invalid_pubspec_test', 'Error parsing pubspec']);
+    });
+
+    group('excludes', () {
+      test('project in build folder', () async {
+        final result = await testCommand(
+          ['get'],
+          projects: {
+            'build_folder_test': {
+              'build/web/pubspec.yaml': pubspec('web'),
+            },
+          },
+        );
+        final stdout = result.stdout;
+
+        expect(result.exitCode, ExitCode.success.code);
+
+        expectLine(
+          stdout,
+          [path.join('build_folder_test', 'build', 'web'), 'Skip'],
+        );
+      });
+
+      group('example projects', () {
+        Future<void> skipsExample(
+          TestProjects projects, {
+          String match = 'Resolving dependencies in `./example`...',
+        }) async {
+          final result = await testCommand(['get'], projects: projects);
+          final stdout = result.stdout;
+
+          expect(result.exitCode, ExitCode.success.code);
+
+          expectLine(
+            stdout,
+            [path.join(projects.keys.first, 'example'), 'Skip'],
+          );
+          expectLine(stdout, [match]);
+        }
+
+        test('dart', () async {
+          await skipsExample(dartProject);
+        });
+
+        test('flutter', () async {
+          await skipsExample(flutterProject);
+        });
+
+        test('fvm', () async {
+          await skipsExample(
+            fvmProject,
+            // This is different because of the older Flutter version
+            match: 'Resolving dependencies in ./example...',
+          );
+        });
+      });
+    });
   });
 }
diff --git a/test/test_test.dart b/test/test_test.dart
index 9190228..c081867 100644
--- a/test/test_test.dart
+++ b/test/test_test.dart
@@ -1,4 +1,4 @@
-import 'package:path/path.dart' as p;
+import 'package:io/io.dart';
 import 'package:test/test.dart';
 
 import 'test_utils.dart';
@@ -9,21 +9,10 @@ void main() {
     final stdout = result.stdout;
 
     // Since these projects have no tests, the command should fail
-    expect(result.exitCode, isNot(0));
+    expect(result.exitCode, isNot(ExitCode.success.code));
 
-    // dart
     expectLine(stdout, ['dart_puby_test', 'flutter test --coverage']);
-    // Explicit exclusion
-    expectLine(stdout, [p.join('dart_puby_test', 'example'), 'Skip']);
-
-    // flutter
     expectLine(stdout, ['flutter_puby_test', 'flutter test --coverage']);
-    // Explicit exclusion
-    expectLine(stdout, [p.join('flutter_puby_test', 'example'), 'Skip']);
-
-    // fvm
     expectLine(stdout, ['fvm_puby_test', 'fvm flutter test --coverage']);
-    // Explicit exclusion
-    expectLine(stdout, [p.join('fvm_puby_test', 'example'), 'Skip']);
   });
 }
diff --git a/test/test_utils.dart b/test/test_utils.dart
index 45f78e7..0978468 100644
--- a/test/test_utils.dart
+++ b/test/test_utils.dart
@@ -1,22 +1,62 @@
+import 'dart:convert';
 import 'dart:io';
 
 import 'package:test/test.dart';
+import 'package:path/path.dart' as path;
 
-Future<ProcessResult> testCommand(
+final _decoder = Utf8Decoder();
+
+// Map of project name to file paths to file contents
+typedef TestProjects = Map<String, Map<String, String>>;
+
+class PubyProcessResult {
+  final String workingDirectory;
+  final int exitCode;
+  final String stdout;
+  final String stderr;
+
+  PubyProcessResult(
+    this.workingDirectory,
+    this.exitCode,
+    this.stdout,
+    this.stderr,
+  );
+}
+
+Future<PubyProcessResult> testCommand(
   List<String> arguments, {
-  String workingDirectory = 'test_resources',
-}) {
-  final levels = workingDirectory.split('/').length;
-  final root = '../' * levels;
-  return Process.run(
+  TestProjects? projects,
+  bool debug = false,
+}) async {
+  final workingDirectory = createTestResources(projects ?? defaultProjects);
+  final puby = File(path.join('bin', 'puby.dart')).absolute.path;
+
+  final process = await Process.start(
     'dart',
-    ['${root}bin/puby.dart', ...arguments],
+    [puby, ...arguments],
     workingDirectory: workingDirectory,
   );
+
+  String handleLine(dynamic line) {
+    final decoded = _decoder.convert(line);
+    if (debug) stdout.write(decoded);
+    return decoded;
+  }
+
+  final processStdout = process.stdout.map(handleLine).join('\n');
+  final processStderr = process.stderr.map(handleLine).join('\n');
+
+  final exitCode = await process.exitCode;
+  return PubyProcessResult(
+    workingDirectory,
+    exitCode,
+    await processStdout,
+    await processStderr,
+  );
 }
 
-void expectLine(dynamic stdout, List<String> matchers, {bool matches = true}) {
-  final lines = (stdout as String).split('\n');
+void expectLine(String stdout, List<String> matchers, {bool matches = true}) {
+  final lines = stdout.split('\n');
   expect(
     lines.any(
       (line) =>
@@ -25,3 +65,73 @@ void expectLine(dynamic stdout, List<String> matchers, {bool matches = true}) {
     matches,
   );
 }
+
+String createTestResources(Map<String, Map<String, String>> projects) {
+  final directory = Directory.systemTemp.createTempSync('test_resources');
+  for (final MapEntry(:key, :value) in projects.entries) {
+    final project = key;
+    final files = value;
+    for (final MapEntry(:key, :value) in files.entries) {
+      final file = key;
+      final content = value;
+      File(path.join(directory.path, project, file))
+        ..createSync(recursive: true)
+        ..writeAsStringSync(content);
+    }
+  }
+  return directory.path;
+}
+
+String pubspec(String name, {bool flutter = false}) {
+  var pubspec = '''
+name: $name
+
+environment:
+  sdk: ^3.0.0
+''';
+
+  if (flutter) {
+    pubspec += '''
+dependencies:
+  flutter:
+    sdk: flutter
+''';
+  }
+
+  return pubspec;
+}
+
+String fvmrc(String version) => '''
+{
+  "flutter": "$version",
+  "flavors": {}
+}''';
+
+final dartProject = {
+  'dart_puby_test': {
+    'pubspec.yaml': pubspec('dart_puby_test'),
+    'example/pubspec.yaml': pubspec('example'),
+  },
+};
+
+final flutterProject = {
+  'flutter_puby_test': {
+    'pubspec.yaml': pubspec('flutter_puby_test', flutter: true),
+    'example/pubspec.yaml': pubspec('example', flutter: true),
+  },
+};
+
+final fvmProject = {
+  'fvm_puby_test': {
+    'pubspec.yaml': pubspec('fvm_puby_test', flutter: true),
+    'example/pubspec.yaml': pubspec('example', flutter: true),
+    'nested/pubspec.yaml': pubspec('nested', flutter: true),
+    '.fvmrc': fvmrc('3.10.0'),
+  },
+};
+
+final defaultProjects = {
+  ...dartProject,
+  ...flutterProject,
+  ...fvmProject,
+};
diff --git a/test/unknown_command_test.dart b/test/unknown_command_test.dart
index 8c72670..232f1a1 100644
--- a/test/unknown_command_test.dart
+++ b/test/unknown_command_test.dart
@@ -1,3 +1,4 @@
+import 'package:io/io.dart';
 import 'package:test/test.dart';
 
 import 'test_utils.dart';
@@ -7,7 +8,7 @@ void main() {
     final result = await testCommand(['asdf']);
     final stdout = result.stdout;
 
-    expect(result.exitCode, isNot(0));
-    expectLine(stdout, ['Unknown command: asdf']);
+    expect(result.exitCode, ExitCode.usage.code);
+    expectLine(stdout, ['Unknown command. Exiting...']);
   });
 }
diff --git a/test_resources/.gitignore b/test_resources/.gitignore
deleted file mode 100644
index f568edd..0000000
--- a/test_resources/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-.dart_tool
-**/.fvm
-!build_folder_test/build
\ No newline at end of file
diff --git a/test_resources/build_folder_test/build/web/pubspec.yaml b/test_resources/build_folder_test/build/web/pubspec.yaml
deleted file mode 100644
index a07a434..0000000
--- a/test_resources/build_folder_test/build/web/pubspec.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-name: web
-publish_to: none
-
-environment:
-  sdk: ">=2.18.0 <3.0.0"
diff --git a/test_resources/dart_puby_test/example/pubspec.yaml b/test_resources/dart_puby_test/example/pubspec.yaml
deleted file mode 100644
index 3da76f8..0000000
--- a/test_resources/dart_puby_test/example/pubspec.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-name: example
-publish_to: none
-
-environment:
-  sdk: ">=2.16.2 <3.0.0"
diff --git a/test_resources/dart_puby_test/example/puby.yaml b/test_resources/dart_puby_test/example/puby.yaml
deleted file mode 100644
index 64080c7..0000000
--- a/test_resources/dart_puby_test/example/puby.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-exclude:
-  - test
-  - pub run build_runner
\ No newline at end of file
diff --git a/test_resources/dart_puby_test/pubspec.yaml b/test_resources/dart_puby_test/pubspec.yaml
deleted file mode 100644
index a27a0d9..0000000
--- a/test_resources/dart_puby_test/pubspec.yaml
+++ /dev/null
@@ -1,5 +0,0 @@
-name: dart_puby_test
-publish_to: none
-
-environment:
-  sdk: ">=2.16.2 <3.0.0"
diff --git a/test_resources/flutter_puby_test/example/pubspec.yaml b/test_resources/flutter_puby_test/example/pubspec.yaml
deleted file mode 100644
index 3776aab..0000000
--- a/test_resources/flutter_puby_test/example/pubspec.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-name: example
-publish_to: none
-
-environment:
-  sdk: ">=2.16.2 <3.0.0"
-
-dependencies:
-  flutter:
-    sdk: flutter
diff --git a/test_resources/flutter_puby_test/example/puby.yaml b/test_resources/flutter_puby_test/example/puby.yaml
deleted file mode 100644
index 64080c7..0000000
--- a/test_resources/flutter_puby_test/example/puby.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-exclude:
-  - test
-  - pub run build_runner
\ No newline at end of file
diff --git a/test_resources/flutter_puby_test/pubspec.yaml b/test_resources/flutter_puby_test/pubspec.yaml
deleted file mode 100644
index 3e74567..0000000
--- a/test_resources/flutter_puby_test/pubspec.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-name: flutter_puby_test
-publish_to: none
-
-environment:
-  sdk: ">=2.16.2 <3.0.0"
-
-dependencies:
-  flutter:
-    sdk: flutter
diff --git a/test_resources/fvm_puby_test/.fvmrc b/test_resources/fvm_puby_test/.fvmrc
deleted file mode 100644
index ceeca18..0000000
--- a/test_resources/fvm_puby_test/.fvmrc
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "flutter": "3.10.0",
-  "flavors": {}
-}
\ No newline at end of file
diff --git a/test_resources/fvm_puby_test/example/pubspec.yaml b/test_resources/fvm_puby_test/example/pubspec.yaml
deleted file mode 100644
index 0aa57e8..0000000
--- a/test_resources/fvm_puby_test/example/pubspec.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-name: example
-publish_to: none
-
-environment:
-  sdk: ^3.0.0
-
-dependencies:
-  flutter:
-    sdk: flutter
diff --git a/test_resources/fvm_puby_test/example/puby.yaml b/test_resources/fvm_puby_test/example/puby.yaml
deleted file mode 100644
index 64080c7..0000000
--- a/test_resources/fvm_puby_test/example/puby.yaml
+++ /dev/null
@@ -1,3 +0,0 @@
-exclude:
-  - test
-  - pub run build_runner
\ No newline at end of file
diff --git a/test_resources/fvm_puby_test/nested/pubspec.yaml b/test_resources/fvm_puby_test/nested/pubspec.yaml
deleted file mode 100644
index 958c00d..0000000
--- a/test_resources/fvm_puby_test/nested/pubspec.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-name: nested
-publish_to: none
-
-environment:
-  sdk: ^3.0.0
-
-dependencies:
-  flutter:
-    sdk: flutter
diff --git a/test_resources/fvm_puby_test/pubspec.yaml b/test_resources/fvm_puby_test/pubspec.yaml
deleted file mode 100644
index 573d629..0000000
--- a/test_resources/fvm_puby_test/pubspec.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-name: fvm_puby_test
-publish_to: none
-
-environment:
-  sdk: ^3.0.0
-
-dependencies:
-  flutter:
-    sdk: flutter
diff --git a/test_resources/invalid_pubspec_test/pubspec.yaml b/test_resources/invalid_pubspec_test/pubspec.yaml
deleted file mode 100644
index e69de29..0000000
diff --git a/test_resources/invalid_pubspec_test/puby.yaml b/test_resources/invalid_pubspec_test/puby.yaml
deleted file mode 100644
index 508bff7..0000000
--- a/test_resources/invalid_pubspec_test/puby.yaml
+++ /dev/null
@@ -1,4 +0,0 @@
-exclude:
-  - test
-  - pub get
-  - pub upgrade
\ No newline at end of file
diff --git a/test_resources/transitive_flutter_test/pubspec.yaml b/test_resources/transitive_flutter_test/pubspec.yaml
deleted file mode 100644
index 55a5a31..0000000
--- a/test_resources/transitive_flutter_test/pubspec.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-name: transitive_flutter_test
-publish_to: none
-
-environment:
-  sdk: ">=2.16.2 <3.0.0"
-
-dependencies:
-  flutter_puby_test:
-    path: ../flutter_puby_test
diff --git a/test_resources_2/.gitignore b/test_resources_2/.gitignore
deleted file mode 100644
index f03451b..0000000
--- a/test_resources_2/.gitignore
+++ /dev/null
@@ -1,4 +0,0 @@
-.dart_tool
-pubspec.lock
-**/.fvm
-!build_folder_test/build
\ No newline at end of file
diff --git a/test_resources_2/fvm_version_not_installed_test/.fvmrc b/test_resources_2/fvm_version_not_installed_test/.fvmrc
deleted file mode 100644
index e553dbb..0000000
--- a/test_resources_2/fvm_version_not_installed_test/.fvmrc
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "flutter": "1.17.0",
-  "flavors": {}
-}
\ No newline at end of file
diff --git a/test_resources_2/fvm_version_not_installed_test/pubspec.yaml b/test_resources_2/fvm_version_not_installed_test/pubspec.yaml
deleted file mode 100644
index 9d25361..0000000
--- a/test_resources_2/fvm_version_not_installed_test/pubspec.yaml
+++ /dev/null
@@ -1,9 +0,0 @@
-name: fvm_puby_test
-publish_to: none
-
-environment:
-  sdk: ">=2.16.2 <3.0.0"
-
-dependencies:
-  flutter:
-    sdk: flutter