Yeah, could even be all analog. And heck, it could even offer a switchable, analog FX loop (most often, for FX placed towards the end, you don't need send/return level controls). My next pedalboard iteration will actually have something like that (custom built), for the time being I'm using this here (signal is running into a DI under the board, XLR to FOH, thru to this little thing):
View attachment 4439
Less than ideal with that cinch input business, still working quite well, providing additional ins (for the acoustic board or other duties), independent monitoring EQ, independent monitoring volume, aux and even BT in, so I can even waste some stage wait time, noodling to backings without annoying anybody else.
My custom built device will in fact have something like a switchable FX loop (well, in fact it's gonna be a bunch of switchable I/Os, freely routable).