If you weighed 200 lbs on Earth, you would weigh just under 6 lbs on Ceres. So trying to live on the outside of it would be difficult — there would be a constant danger of jumping or tripping and finding yourself launched away into space! Hollowing out a cylinder and living on the inside is much safer!
[Birthday shout-outs to Hugh Beaumont and Christopher Eccleston!]
Like a small scale dysons sphere perhaps.
I guess, yeah, like the beginnings of one… starting with a cylindrical core out of the middle, with room to expand later and eventually hollow out the whole sphere…