Prerequisites - aguilaair/Companion GitHub Wiki
Getting Companion set up is super simple! However, you do need a few things before Companion can start helping you out.
What's required
Flutter
You're going to need the Flutter SDK installed already in order to have use Companion. If you need a guide here's the official instructions.
Flutter Version Management (FVM)
Once you've set up Flutter you're going to need to install the powerhouse of Companion, Flutter Version Management (FVM) by Leo Farias. To do this run:
flutter pub global activate fvm
Once it has finished installing you may see a message similar to:
Warning: Pub installs executables into --------------, which is not on your path.
If you do, please add the directory indicated into your PATH.
Visual Studio Code
Lastly, in order to have the full Companion experience I recommend you install Visual Studio Code.