nix-config/config/users/polygon.nix

_:
{
  users.users.polygon = {
    isNormalUser = true;
    openssh.authorizedKeys.keys = [
      "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAICGEKrCGXyHqD0jdTYVHnnScL9mhDU2PR9VyH7fu528J jan@nixbrett"
    ];
  };
}