There are no or very few restrictions, you can build what you want, you learn a lot, you meet new people or build stronger relationships with the ones you do kn

There are no or very few restrictions, you can build what you want, you learn a lot, you meet new people or build stronger relationships with the ones you do know, and you may end up with something very cool. There's more to it than this, but it comes down to it being fun and rewarding.