[No Spoilers]The Golden Nug is extremely broken.

Broken in a way that is extremely beneficial to players at least.

Step one, load up your highest level, richest character and go to the Golden Nug. Create a fresh, separate save.

Step two, go to the Black Emporium and buy as many expensive schematics as you can, then travel back to Skyhold

Step three, upload at the Nug

Step four, load the fresh, separate save from step one and synchronize from the Nug. You will now have all of the schematics AND all of your gold. Rinse and repeat until you've acquired all of the schematics that you want.