Repurpose the waste from the imprecise assembly of machines for new materials. No process is ever truly perfect.
Mods introducing new content into the game.
New Ores and resources as well as machines.
Furnaces, assembling machines, production chains.
That's probably a lot to ask considering the size of K2, but do you think you could add compatibility ? Especially removing scrap from the new intermediates, that's a bit annoying.