From the replies (crazy designer said he's thinking about 2-3 layers), seems like it is not QMK compatible.
Haven't seen any prebuilt bluetooth keyboard with QMK out of the box, the only bluetooth supported by QMK require hand built and I haven't even seen one demo'ed on youtube or elsewhere.
Whether it supports QMK or not, if AM HATSU software and configurator can support the full sets of QMK functions, I guess that will suffice.
But that list is huge and not trivial to replicate:
mod-tap, tap-dance, one shot modifiers, etc. The first two can span into a lot of different combos, even QMK VIA don't support for the time being.
Without MT, TD and OSM though, I would not consider using because those features actually make my typing experience super comfortable, split and ergo shape will be secondary concern.