An interstellar progression overhaul that organizes Space Age planet mods into structured systems, discovery chapters, and coherent starmap routes.
Large total conversion mods.
New places to build more factories.
Furnaces, assembling machines, production chains.
I think you may need to take a look at how technologies are ordered on Cerys. You need to recycle nuclear scrap for solid fuel, and the nuclear scrap recycling tech is locked behind a bunch of techs that are much later in the game.
Screenshot of what my tech tree currently looks like: https://i.imgur.com/sTpbKSJ.jpeg
