Years in the making, I finally have a working prototype of my Camera GBD-M2 (previously shared as Game Boy Camera M2).
A sequel to the Game Boy Camera M1, this new redesign uses original Game Boy Pocket & Game Boy Camera chips into a camera-like shape roughly the same size as the Ricoh GR III.
it's an ultra-compact Game Boy Camera cart, which still detaches, using a CS Mount for lenses. But technically yes, one could modify it for other lens mounts, if they'd like