{ config, lib, pkgs, ... }: let
  loc = config.local;
  colo = loc.scheme;
in {
  users.users.andrew = {
    isNormalUser = true;
    uid = 1000;
    extraGroups = [ "wheel" "input" "audio" "video" "render" "disk" "cdrom" ];
  };
  nix.settings.trusted-users = [ "andrew" ];

  documentation = {
    enable = true;
    man.enable = true;
    dev.enable = true;
  };

  fonts = {
    fontDir.enable = true;
    packages = with pkgs; [
      local-fonts
      vista-fonts
      noto-fonts
      noto-fonts-cjk-sans
      noto-fonts-cjk-serif
      noto-fonts-emoji-blob-bin
      mplus-outline-fonts.osdnRelease
      intel-one-mono
      nanum-gothic-coding
      iosevka-comfy.comfy
      dina-font
      freefont_ttf # FreeMono
    ];
    fontconfig = {
      enable = true;
      includeUserConf = false;
      allowBitmaps = true;
      cache32Bit = true;
      antialias = true;
      hinting = {
        enable = false;
        style = "slight";
      };
      subpixel = {
        rgba = "rgb";
        lcdfilter = "light";
      };
      defaultFonts = {
        serif = [ loc.ui-font.name ];
        sansSerif = [ loc.ui-font.name ];
        monospace = [ loc.font.name ];
        emoji = [ loc.emoji-font.name ];
      };
    };
  };

  environment.systemPackages = with pkgs; lib.lists.flatten [
    man-pages
    man-pages-posix
    home-manager
    mercurial
    file
    bc
    screen
    loccount
    (aspellWithDicts (dicts: with dicts; [ en en-computers en-science ]))
    rsync
    (python3.withPackages (python-pkgs: [ python-pkgs.requests python-pkgs.beautifulsoup4 ]))
    htop
    ufetch
    (asNeeded "cmatrix" ["cmatrix"])
    hdparm
    #dcfldd
    ddrescue
    cdrtools
    usbutils
    cryptsetup
    (asNeeded "nix-index" ["nix-channel-index" "nix-index" "nix-locate"])
    imagemagick
    pngcheck
    (asNeeded "optipng" ["optipng"])
    (asNeeded "dmtx-utils" ["dmtxquery" "dmtxread" "dmtxwrite"])
    (asNeeded "zbar" ["zbarcam" "zbarcam-gtk" "zbarcam-qt" "zbarimg"])
    perlPackages.ArchiveZip # For crc32.
    b3sum
    libfaketime
    cpulimit
    dos2unix
    socat
    curl
    (asNeeded "httrack" ["htsserver" "httrack" "proxytrack" "webhttrack"])
    libuchardet
    (unzip.override { enableNLS = true; })
    rar
    unrar
    p7zip
    rclone
    ffmpeg-headless
    xdg-utils
    jq
    when
    evtest
    linuxConsoleTools
    wev
    gcr
    pass
    zenity
  ];

  local.scripts.imports = [
    "install-as-needed"
    "cpu-vulns"
    "sp" # spell
    "ts-date"
    "term-font-size"
    "shift-jis-zip"
    "7z-password"
    "moonrune-charset-utf8"
    "gpg-pubkey"
    "img-fstype"
    "mount-nfs"
    "rewrite-git"
    "xbox360-ffmpeg-enc"
  ];

  programs.screen = {
    enable = true;
    screenrc = ''
      termcapinfo xterm* ti@:te@
      defscrollback 10000
      startup_message off
    '';
  };

  programs.mtr.enable = true;
  services.gnome.gnome-keyring.enable = false;
  programs.gnupg.agent = {
    enable = true;
    pinentryPackage = pkgs.pinentry-gnome3;
    enableSSHSupport = true;
    settings = {
      default-cache-ttl = 28800;
      max-cache-ttl = 28800;
    };
  };
  programs.ssh = {
    extraConfig = "AddKeysToAgent yes";
  };

  home-manager.users.andrew = let
    homeDir = "${config.users.users.andrew.home}";
  in {
    home.username = "andrew";
    xdg.userDirs = {
      enable = true;
      setSessionVariables = true;
      desktop = "${homeDir}/tmp";
      documents = "${homeDir}/docs";
      download = "${homeDir}/dl";
      music = "${homeDir}/tmp";
      pictures = "${homeDir}/pics";
      publicShare = "${homeDir}/tmp";
      templates = "${homeDir}/tmp";
      videos = "${homeDir}/dl/mp4";
    };
    home.sessionVariables = {
      GOPATH = "${homeDir}/tmp/go";
    };
    programs.git = {
      enable = true;
      settings = {
        user = {
          email = "andrew@akon.city";
          name = "Andrew Opalach";
        };
        format.signOff = true;
        init.defaultBranch = "master";
      };
      signing = {
        key = "99659CB58598BDDB"; # The last digits of the key.
        signByDefault = true;
        format = "openpgp";
      };
    };
    home.file.".config/gdb/gdbinit".source = ../../files/gdbinit;
    home.file.".config/colors.json".text = ''
      {
        "special": {
          "background": "${colo.background}",
          "foreground": "${colo.foreground}"
        },
        "colors": {
          "color0": "${colo.color0}",
          "color1": "${colo.color1}",
          "color2": "${colo.color2}",
          "color3": "${colo.color3}",
          "color4": "${colo.color4}",
          "color5": "${colo.color5}",
          "color6": "${colo.color6}",
          "color7": "${colo.color7}",
          "color8": "${colo.color8}",
          "color9": "${colo.color9}",
          "color10": "${colo.color10}",
          "color11": "${colo.color11}",
          "color12": "${colo.color12}",
          "color13": "${colo.color13}",
          "color14": "${colo.color14}",
          "color15": "${colo.color15}"
        }
      }
    '';
  };
}