I do not understand exactly what this mod works but even while using
"/c game.player.force.research_all_technologies()" to unlock all techs, I can't find the recipe for this thing

Additionally it seems to need something that I cannot provide, which doesn't allow me to even place it and there are no "Red connections marking where you can aim with it". So it kinda sounds like it's just straight up completely broken for me.

I do see the recipe and can put it in an assembler (with editor) but neither me or the in game wikipedia can find what unlocks it.

That is intentional. I only included some primitives to be used by my other mods.

It is also useless if there are no mods setting up any connections for it.

Ah well then the modpack that I grabbed that had this mod inside was broken

currently that mod is only the outer rim.

Weird, when I installed some other mod it needed this one but now I can't find it in the dependents

The outer rim is the single mod that uses this right now.
When I'm done with Dea Dia's rework (did not spent time on it for a while, I have other priorities) that will be the other.