Modding Help How to make custom procedural dungeons?

So, I know how to use Tiled, how to import objects and tilesets and all that stuff just fine.

But my question is-- how the heck do you make functioning procedural dungeons?

There's no tutorials and barely any insight no matter where I'm looking; no details on what files I need to patch to, what folder and file structures are needed, no details on what extra files I might need to support a dungeon and how to nudge it into the list of things a planet might have when generated.
There's just.. nothing. That's the hard part about Starbound modding, I guess: where there's nothing, you reverse-engineer, maybe search a few tutorial. But there aren't any tutorials, and the vanilla assets aren't easily deciphered when it comes to overall dungeon file-structure and the rules they operate by.

Could someone help me out or point me in the right direction? I really want to make little mini-dungeons, houses and whatnot for my species mod.