{ common, ... }:
{
  programs.bash = {
    enable = true;
    enableCompletion = true;
    historyFile = "/dev/null";
    sessionVariables = {
      PS1 ="\\033[1m\\u\\033[0m@\\033[1m\\h\\033[0m: \\w\nλ ";
      BROWSER = "firefox";
      XINITRC = "${common.homeDir}/bin/xinitrc";
      XAUTHORITY = "${common.homeDir}/.local/share/Xauthority";
      PASH_KEYID = "3E4A909C8FEF6E3783699C79DFC26EF8EDAD6D71";
      QT_AUTO_SCREEN_FACTOR = 1;
      PATH = "${common.homeDir}/bin:$PATH";
    };
    shellAliases = {
      x = "startx";
      rm = "rm -i";
      cal = "cal -m";
    };
    initExtra = ''
      source ~/.profile
      set -o vi

      run() {
        pkg="$1"
        [ "$pkg" = "''${pkg##*#}" ] && pkg="nixpkgs#$pkg"
        export NIXPKGS_ALLOW_UNFREE=1 NIXPKGS_ALLOW_BROKEN=1
        nix run --impure "$pkg"
      }

      shell() {
        i="$#"
        while [ "$i" -gt 0 ]; do
          pkg="$1"
          [ "$pkg" = "''${pkg##*#}" ] && pkg="nixpkgs#$pkg"
          shift
          set -- "$@" "$pkg"
          : $(( i -= 1 ))
        done
        export NIXPKGS_ALLOW_UNFREE=1 NIXPKGS_ALLOW_BROKEN=1
        nix shell --impure "$@"
      }

    '';
  };
  programs.direnv = {
    enable = true;
    nix-direnv.enable = true;
  };
}