Want some help on how everything works

Okay so I used to play rathnir casually 2 years back and I have decided to come back to stoneworks after my exams are done

Earlier I never understood all the modded stuff such as brewing, jams, cheese, custom weapons and everything else

So I wanted to learn a bit about stoneworks before rejoining the game. So it will be real helpful if someone just tells me what are all the custom non vannilla stuff you can do here, how to play in the servers and a basic guide on what's going on and what I should do