nix-configs/modules/mprocs.nix

{...}: {
  home-manager.users.jade = {
    pkgs,
    lib,
    ...
  }: {
    home = {
      packages = [pkgs.mprocs];
    };
    xdg.configFile."mprocs/mprocs.yaml" = {
      text = builtins.toJSON {
        proc_list_width = 15;
      };
    };
  };
}