Data vending machines? Whats that?
Javascript is the easiest way to get going, and there are lots of web clients out there (particularly in svelte). I've got lots of issues open at https://github.com/coracle-social/coracle/issues if you want to contribute to Coracle. Otherwise, you can find a list of projects here: https://github.com/aljazceru/awesome-nostr
One way you might consider contributing is by building data vending machines, in particular I'd be interested in one for search.