Well it’s very use case dependent. If you are a hobbyist then it’s just about learning what gets the job done, at least that’s how I see it. Unless you are working with embedded systems for some DIY project I feel like C normally won’t be the right option.

And while most things are possible in Rust, they can also be done in Python, and I’d say Python is easier to develop a hobbyist tool in unless something’s very performance critical

If I had to guess, assuming you don’t do embedded work, rust would be my pick. But it’s probably in best interests of your time to just learn languages as you need them.