Wow, uhh.. what did I miss...?

I still haven't made an NCS or whatever you guys call them; I honestly can't settle on any one idea. I've went over robotic 'benevolent precursors' hiding out on a ringworld, moth dudes with biological and magic technologies, a combination of the two previous ideas merged with a 'oh yeah, there's a giant monster in this dyson sphere. it's a cage.', and now I'm thinking of the born-again consciousnesses of a previous coalition of races who uploaded themselves to one or two 'computer planets' to survive some previous apocalyptic war. Like the CORE from Total Annihilation? That'd be cool.

I think I'm just gonna go with that.