Maybe I’ll write something in the future

It was not too hard if you are already familiar with Nix. The features supported (and the custom Linux kernel) can be found in surface-linux. For NixOS I used the nix-hardware flake to simplify things.

The worst part was the compilation of the Linux kernel, that took hours on the surface. Eventually, I used the remote nix build feature to compile on a more capable computer.

I have a Microsoft Surface 7 running NixOS. Everything works, even touch/pen