Comment by HDBaseT

Don't they already have open source firmware, at least for their keyboards. I have a K4 HE and this is on their Github [1].

[1] - https://github.com/Keychron/qmk_firmware/tree/hall_effect_pl...

They publish the .stp, .dxf, .dwg, .pdf files for a lot of their products already too.

I would be fairly optimistic that they will hold their promise.