Do all modules in a rack need to use the same power supply?
Say you were tentatively wanting to get into modular, to dip your toes in just a little bit, because you already have the Moog DFAM and Mavis, and are thinking about starting very small, just a few modules to enhance those two. One at a time, as you can afford. Could a person in this position buy an unpowered case and mount the Moogs into it while keeping the power supply as is for the time being, with the standard wall wart adapter used when they are standalone on a desktop; and then as you acquired this or that module you could power it with the ribbon in the rack and build from there, and then switch the power to the Moogs, if necessary?
Or do they need to use the ribbon to go into the rack in the first place?