nixos/pkgs/systemPackages.nix

{
  config,
  lib,
  fn,
  pkgs,
  ...
}:
with lib; let
  cfg = config.machine;
  pkgsets = fn.lst {
    p = toString ../pkgsets;
    b = true;
  };
in {
  imports = pkgsets;

  environment.systemPackages =
    flatten
    (lists.forEach
      (attrVals
        (filter
          (v: !(strings.hasInfix "::" v))
          cfg.pkgs)
        cfg.pkgsets)
      (v: v.pkgwrap));
}