Agree with all of this. Don't do any yak-shaving you don't want to do just for the fun of it; build your language and its tooling on existing systems so you can

Agree with all of this. Don't do any yak-shaving you don't want to do just for the fun of it; build your language and its tooling on existing systems so you can spend your time on what makes it special, instead of what doesn't.