Sorry, “real life project” was a poor metric. I suppose I meant anything where bugs would have a negative impact on the world — either a business or individual. Realistically though, anything that I’m expected to spend more than 20 minutes working on. I’m quite the extremist when it comes to languages and highly opinionated in general.

I compulsively rewrite JS into TS and 100% of the repos I work on have “allow-js” set to false in the tsconfig. It seems to be fueled by the same “OCD” I get when designing UI, organizing css, or making music for example.