Not sure about drivers – you might need to add boot.extraModulePackages = [ config.boot.kernelPackages.digimend ] NixOS option, as support for the device was only recently added to digimend kernel drivers.
For apps to properly detect buttons, you might also need a .tablet file that has just been added to libwacom as a part of mass import of Huion/Gaomon devices. Thankfully, the id appears to be unique for now so it should not require Linux 6.10 and you should be able to install the .tablet file as described in Custom libwacom .tablet files for Wacom devices.