{
  allowUnfree = true;
  allowBroken = false;
  pulseaudio = true;
  packageOverrides = pkgs: rec {
    rPackages = pkgs.rPackages.override {
      overrides = {
        png = pkgs.rPackages.png.overrideDerivation (old: { nativeBuildInputs = old.nativeBuildInputs ++ [ pkgs.libpng.dev ]; });
      };
    };
    toxvpn = pkgs.callPackage /home/clever/apps/nix-misc/toxvpn.nix {};
    mystuff = with pkgs; buildEnv {
      name = "mystuff";
      ignoreCollisions = true;
      paths = [
        (pkgs.makeDesktopItem { name = "jvisualvm"; exec = "${pkgs.oraclejdk}/bin/jvisualvm"; desktopName = "JVisualVM"; genericName = "jvisualvm"; categories = "Development;Debugger;"; })
        asciinema audacity alsaTools
        bind
        dfeet
        dos2unix
        gnome3.gedit gimp gist gnupg
        iperf
        jq
        keybase kde4.kdenlive
        man-pages posix_man_pages stdmanpages glibcInfo
        minitube
        nix-prefetch-scripts
        pinfo pv
        sloccount