Complete noob, have no idea how to use the app

[1luisw]

Hello everyone, im sorry i don't know what I'm doing, but I saw this program and really wanted to use it, after an hour of investigating on how to use github I got lost. I want to use this app, can someone give me an step by step on how to install and use this?
Im using Fedora 39.
Again im sorry, I dont know how to use this Im completely new to this.