Every single custom mechanical keyboard supports fully customizable open source firmware called QMK or Via. Nothing about any mechanical keyboard with QMK is inherently second-class when it comes to Linux.
The other weird thing about this keyboard is that the keycap compatibility is a little bit awkward. The wide delete key, short backspace, small return, and split spacebars are not impossible to replace, but many common MX sets don’t have those keycaps in the base kit. Most GMK base sets will only include the smaller backspace. You’ll need to shell out for the additional “40s” kit for those keys.
I don’t know the price but I would estimate at least $250 USD depending on the volume they intend to produce. A keyboard like this run through GeekHack and co would easily go for $350 without keycaps.
The other weird thing about this keyboard is that the keycap compatibility is a little bit awkward. The wide delete key, short backspace, small return, and split spacebars are not impossible to replace, but many common MX sets don’t have those keycaps in the base kit. Most GMK base sets will only include the smaller backspace. You’ll need to shell out for the additional “40s” kit for those keys.
I don’t know the price but I would estimate at least $250 USD depending on the volume they intend to produce. A keyboard like this run through GeekHack and co would easily go for $350 without keycaps.