{
  sources ? import ../sources.nix,
  pkgs ? import sources.nixpkgs {},
}: let
  inherit (pkgs) lib;
in
  lib.mapAttrs
  (name: _: pkgs.callPackage (./by-name + "/${name}/package.nix") {})
  (
    lib.filterAttrs (_: type: type == "directory") (builtins.readDir ./by-name)
  )