{

  hostConfig,

  pkgs ? (import ./pkgs.nix).stable {},
  pkgs2305 ? (import ./pkgs.nix).stable2305 {},
  pkgsEdge ? (import ./pkgs.nix).edge {},

}: let

  recursiveMerge = with pkgs.lib; attrList:
    let f = attrPath:
      zipAttrsWith (n: values:
        if tail values == []
          then head values
        else if all isList values
          then unique (concatLists values)
        else if all isAttrs values
          then f (attrPath ++ [n]) values
        else last values
      );
    in f [] attrList;

  config = recursiveMerge [ (import ./config/default.nix) hostConfig ];

in rec {

  gitConfig = pkgs.stdenv.mkDerivation {
    name = "mediocregopher-git-config";

    gitConfigBase = ./base/gitconfig;
    gitConfigCustom = builtins.toFile "mediocregopher-git-config-custom"
      (pkgs.lib.generators.toGitINI config.git);

    builder = builtins.toFile "builder.sh" ''
      source $stdenv/setup

      dir="$out"/git
      mkdir -p "$dir"

      cp "$gitConfigBase" "$dir"/config
      cp "$gitConfigCustom" "$dir"/custom
    '';

  };

  git = pkgs.writeScriptBin "git" ''
    #!${pkgs.bash}/bin/bash
    export XDG_CONFIG_HOME=${gitConfig}
    exec ${pkgs.git}/bin/git "$@"
  '';

  bin = pkgs.buildEnv {
    name = "mediocregopher-bin";
    paths = [
      (pkgs.runCommand "mediocregopher-default-bin" {} ''
          mkdir -p "$out"
          cp -rL "${./bin}" "$out"/bin
      '')
    ] ++ (
      builtins.map (cFn: cFn pkgs) config.binExtra
    );
  };

  zsh = ((import ./zsh) { inherit config; }).zsh;
  awesome = ((import ./awesome) { inherit config; });

  loadout = pkgs.buildEnv {
    name = "loadout";
    paths = [
      pkgs.dosfstools

      pkgs.gnugrep
      pkgs.ag
      pkgs.gawk
      pkgs.tree
      pkgs.pv
      pkgs.less
      pkgs.tmux

      pkgs.man
      pkgs.man-pages
      pkgs.man-pages-posix

      git
      pkgs.mercurial
      pkgs.breezy # bzr

      pkgs.gnumake
      pkgs.cmake
      pkgs.strace

      pkgs.curl
      pkgs.wget
      pkgs.rsync

      pkgs.hostname
      pkgs.netcat
      pkgs.nmap
      pkgs.dnsutils
      pkgs.openssh
      pkgs.sshfs
      pkgs.fuse3
      pkgs.usbutils
      pkgs.tcpdump

      pkgs.ncdu
      pkgs.htop
      pkgs.jnettop
      pkgs.iotop

      pkgs.zip
      pkgs.unzip
      pkgs.unrar
      pkgs.gzip

      pkgs.jq
      pkgs.yq
      pkgs2305.rsbkb

      pkgs.tomb
      pkgs.udiskie

      pkgs.xterm # nice to have a backup
      pkgs2305.libreoffice
      pkgs.gimp
      pkgs.inkscape
      pkgs.vlc
      pkgs.sylpheed
      pkgs.calibre
      pkgsEdge.lagrange
      pkgs.pavucontrol
      pkgs.xdg-utils
      pkgs.arandr
      pkgs.xsel
      pkgs.xorg.xrandr
      pkgs.wireshark

      bin
      ((import ./nvim) {}).nvim
      zsh
      ((import ./alacritty) { inherit config zsh; }).alacritty
      awesome.env
    ];
  };

  fonts = pkgs.buildEnv {
    name = "fonts";
    paths = [
      pkgs.nerdfonts
      pkgs.source-code-pro
    ];
  };
}