Larian Studios Forums Divinity - Original Sin Divinity Original Sin - Mods _Start and what needs to be there?

The most basic of questions:

What exactly needs to be in _start in order for my mod to work correctly(dialog with global NPCs, combat, etc)? I dont want to install the bloat of a million unnecessary scripts, i just want to make _Start then my scripts. However, it seems most tutorials just assume you have the main scripts loaded.

PS: I'm using preset characters, not character creation.