Do You Have a Similar Approach to Choosing Side Projects?

I am terrified of working on platforms. Like when i joined the team as, like, o mi gosh, am i qualified to be here? I've never worked on design systems before. Now i'm helping build a whole design system for our whole company. Sometimes my side project ideas are very er, what's the word for when you just do something like really quickly, without much thought, off the cuff. Yes, when i look backi on my career, which is, like, how i'm focussing on a book, for example, which i guess is definitely a stretch in the growth direction as well,. But that wasn't why i picked it, you know what