x86_64-linux pkgs

[kittywitch]

Tried using this with an aarch64-linux host, does not work due to x86_64-linux version of pkgs hardcoded, no internal replacement of pkgs arch

[kittywitch]

https://github.com/kittywitch/scalpel uses flake-utils for eachDefaultSystem but you should just provide mk_scalpel as an overlay to nixpkgs so that you can simply use the pkgs from the system instead of a hardcoded system