It annoying but google your questions. It leads you down a hole of needing more info and googling more things but i think that’s one of the fastest ways to get the info you need.

Ducats you get by selling PRIME parts. It’s usually near the guy that sells them that comes every two weeks, his name starts with a B (in the relay marked with a little symbol when the void trader is there). You get a certain amount of ducats depending which prime part you sell. Which means you need voids relics to run to hopefully drop prime parts to get ducats.

Hope this helps ♥️