If you want something faster than dart-sass, then https://github.com/connorskees/grass https://github.com/connorskees/grass (a rust implementation) is pretty go

If you want something faster than dart-sass, then https://github.com/connorskees/grass https://github.com/connorskees/grass (a rust implementation) is pretty good these days (although it doesn't quite have full compatibility yet).