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{ catppuccinTheme }: { config
                     , pkgs
                     , ...
                     }: {
  programs =
    let
      # Config file of catppuccin/foot is ini file: Nix can't parse that.
      # To workaround, manually fetch palette JSON and use its token.
      catppuccinPalette =
        (builtins.fromJSON (builtins.readFile (
          pkgs.fetchFromGitHub
            {
              owner = "catppuccin";
              repo = "palette";
              rev = "205dd54c6158b7648621cf9fd00e91f03888ce7e";
              sha256 = "y14fd8lvnG9hNY6CRU0JgxWouexEw91aIEMkr1NaM/4=";
            }
          + "/palette.json"
        )))."${catppuccinTheme}";

      fg = builtins.substring 1 6 catppuccinPalette.surface0.hex;
      bg = builtins.substring 1 6 catppuccinPalette.text.hex;
    in
    {
      zsh = {
        # Let Zsh tell Foot a current working directory
        # https://codeberg.org/dnkl/foot/wiki#user-content-spawning-new-terminal-instances-in-the-current-working-directory
        initExtra = ''
          function osc7-pwd() {
              emulate -L zsh # also sets localoptions for us
              setopt extendedglob
              local LC_ALL=C
              printf '\e]7;file://%s%s\e\' $HOST ''${PWD//(#m)([^@-Za-z&-;_~])/%''${(l:2::0:)$(([##16]#MATCH))}}
          }

          function chpwd-osc7-pwd() {
              (( ZSH_SUBSHELL )) || osc7-pwd
          }
          autoload -Uz add-zsh-hook
          add-zsh-hook -Uz chpwd chpwd-osc7-pwd
        '';
      };

      # A fast, lightweight and minimalistic Wayland terminal emulator
      # https://codeberg.org/dnkl/foot
      foot = {
        enable = true;

        server.enable = true;

        settings = {
          main = {
            include = "${config.xdg.configHome}/foot/theme.conf";

            font = "monospace:size=10";
          };

          cursor = {
            # Foot by default invert fg/bg for cursor. However, this makes
            # cursor on indent_blankline's indent char/spaces barely visible.
            color = "${fg} ${bg}";
          };

          colors = {
            alpha = 0.9;
          };
        };
      };
    };

  xdg = {
    configFile."foot/theme.conf" = {
      text = builtins.readFile (
        pkgs.fetchFromGitHub
          {
            owner = "catppuccin";
            repo = "foot";
            rev = "009cd57bd3491c65bb718a269951719f94224eb7";
            sha256 = "0f0r8d4rn54gibrzfhiy4yr8bi7c8j18ggp1y9lyidc1dmy9kvw0";
          }
        + "/catppuccin-${catppuccinTheme}.conf"
      );
    };
  };
}