I found it really annoying that there were technologies added in space age that add productivity to things that weren't the start or end of your production line, this mod disables those technologies from showing up.

Some technologies were left because I felt they were close enough to being the start of the production line to be not an annoyance to me, mainly the scrap and asteroid productivity techs.

Rocket parts and research are very clearly the end of the production lines they're involved in so they get a pass too