For an OG playthrough, just the base game with a few of the Space Age goods.

Wiped the Space Age tech tree and reloaded the base game tech tree.
Implemented and adjusted the following to use Nauvis resources and fit them into the base tech tree:

Big mining drill
Foundry
Electromagnetic plant
Agricultural tower (only wood)
Fusion power
Rocket turret
Tesla turret/weapon
Mech armor
Biolab
Turbo belts
Stack inserter
Infinite productivity (all of them*)

Launch rockets to get space science!

For that one person that said this would be a great idea for a mod.
Mods that change the tech tree are probably not going to be compatible.

Any feedback or suggestions welcome!
https://discord.gg/sQU7PahZEu

*changed processing unit productivity to include all three circuit boards, couldn't resist adding one custom tech