[axegon_]

I don't think there's a good universal project that you can keep reimplementing in different languages and getting a good grip of the language. In your paricular case, go is more of a general purpose language so anything that involves simple filesystem and network operations(cache, databases, apis and all that) would be fine. In theory rust can do the same things but it's a systems language and trust me, it's not suitable for such things at all: poor ecosystem, the help you will get online is not preally great: what you will commonly get when you hit a wall when playing with something like actix is "this is bad practice" responses without an example of good practices. With that said, I've been playing around with robotics in my spare time lately and even for a beginner, I think this could be a great choice: you can pick up a decent robotics kit for 20-ish bucks and a raspbberry pi and you will have tons and tons of fun, even if you've never touched rust before in your life. And even if you have, it's still tons of fun.