I haven't found a clear-cut answer for if I can do this nor how to go about it. I'd like to allow my game to load additional MGCB into content managers, thus allowing additional content to be made after I release my game.
I've seen talk of building them on the fly, but nothing about loading them nor using them. If I missed this question being asked and answered elsewhere, please feel free to correct me.
My initial solution was to just not use the MGCB content pipeline at all, and replacing it with an uncompressed zip structure similar to the classic "pak" concept games have used in the past. I fear inefficiency with that. I'd like to use the "native" content pipeline system if I can.