{ config, ... }: {
  nix.settings = {
    substituters = [ "https://arm.cachix.org/" ];
    trusted-public-keys = [ "arm.cachix.org-1:5BZ2kjoL1q6nWhlnrbAl+G7ThY7+HaBRD9PZzqZkbnM=" ];
  };
  boot.binfmt = {
    emulatedSystems = [ "armv6l-linux" ];
  };
}