Sure it's allowed, but we have these questions a lot, so some enthusiasts made some really great posts with tons of info, for example:
https://lemmy.ml/post/12123645
https://lemmy.ml/post/18268622
I'd recommend to read through them, then come back and ask more specific questions.
Maybe you can also find open source communities in your area. After some digging, I was surprised how many groups there are in my area and they are always happy to get additional hands to organize stuff or run errands etc.