{ config ? { }, sources, system ? builtins.currentSystem, ... }@args:

let
  pkgs = import sources.nixpkgs args;
  overlay = self: super: rec {
    dino = super.callPackage "${sources.qyliss-nixlib}/overlays/patches/dino" {
      inherit (super) dino;
    };

    discord = super.discord.override { nss = self.nss_latest; };

    arc = import sources.arc-nixexprs { pkgs = super; };
    unstable = import sources.nixpkgs-unstable { inherit (self) config; };
    nur = import sources.NUR {
      nurpkgs = self;
      pkgs = self;
    };

    screenstub = unstable.callPackage ./screenstub { };

    linuxPackagesFor = kernel:
      (super.linuxPackagesFor kernel).extend (_: ksuper: {
        vendor-reset =
          (super.callPackage ./vendor-reset { kernel = ksuper.kernel; }).out;
      });
  };

in pkgs.extend (overlay)