The foundation tech unlocks the force placement to put in foundation on lava. This means that expanding initially is annoying, as you manually have to fill in areas instead of only the needed area.

Why are wagons, fluid tanks and such not allowed on rockets? I'm ok with the addition of lava as an ingredient, but without a mod to make lava available on other planets like Lavafill, it means you cant use it anywhere but nauvies, and many space platform designs need a tank, or other places (like Fulgora) expecting trains in some form, so it feels weird to not be able to make them elsewhere.

Oh, im on it