Fair enough, I'll play :) The first one looks like some kind of configuration language, most likely JSON due to lots of matching { and }, colons and no semicol

Fair enough, I'll play :) The first one looks like some kind of configuration language, most likely JSON due to lots of matching { and }, colons and no semicolons. The second one I really can't tell. It's most likely some sort of curly brace language, Typescript? Java? The third one really looks like Python: no semicolons, no braces, [ and ] for list/dict access, # for comments, @ for decorators. The fourth is also tricky. I want to say HTML-ish because of the </> sequences, but it also looks like a curly brace language! I'm going to guess it's a JSX React file.