The best way for new users to help with LiSE is to try to make a game with it. Try modifying the Awareness sim. This template shows you how to use ELiDE's widgets as the frontend to your game, which will likely be the easiest route in the long run, but if you have trouble with it, or you need 3D, other Python game engines are available; consider Pyglet or Ursina. If you're using such an engine, you don't need ELiDE, though it might be helpful as a way to browse the world state if it's not readily apparent from looking at your game.
In the likely case that something about the engine doesn't behave how you expect, or you need a feature, file a ticket against the LiSE repository. Please link me to your source code or at least paste a runnable snippet in the ticket if at all possible.
If you need more help, send email to [email protected]