@LasagnaDevil You have provided no information about your setup as requested (Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first)

Assuming you are on a PC, just do a basic install first - which installs the base set of packages, you can then install any extra ones. It's only something you have to do once.

PR is a Pull Request - when you contribute back to the project - You said "I don't think it'd be that hard to implement, honestly." so I said you could contribute back. I had assumed you based that comment on some internal knowledge of the codebase. Otherwise it doesn't mean a lot :)