{
  flake.modules.homeManager.base =
    { pkgs, ... }:
    {
      home.packages = [
        (pkgs.writeShellApplication {
          name = "t";

          runtimeInputs = with pkgs; [ fzf ];

          text = ''
            set -euo pipefail

            # Based on https://github.com/jessarcher/dotfiles/blob/master/scripts/t
            # and https://github.com/ThePrimeagen/tmux-sessionizer.

            has_session() {
              tmux list-sessions | grep -q "^$1:"
            }

            hydrate() {
              if [ -f "$2/.tmux-sessionizer" ]; then
                tmux send-keys -t "$1" "source $2/.tmux-sessionizer" c-M
              elif [ -f "$HOME/.tmux-sessionizer" ]; then
                tmux send-keys -t "$1" "source $HOME/.tmux-sessionizer" c-M
              fi
            }

            is_tmux_running() {
              tmux_running=$(pgrep tmux)

              if [[ -z ''${TMUX:-} ]] && [[ -z $tmux_running ]]; then
                return 1
              fi

              return 0
            }

            switch_to() {
              tmux attach-session -t "$1" || tmux switch-client -t "$1"
            }

            if [[ $# -eq 1 ]]; then
              selected=$1
            else
              items=$(
                find "$HOME/Code" -maxdepth 3 -mindepth 1 -type d
                find "$HOME/Documents" -maxdepth 1 -mindepth 1 -type d
                find "$HOME/tmp" -maxdepth 1 -type d
              )

              selected=$(echo "$items" | sed "s|^$HOME/||" | sort | fzf)
              [[ $selected ]] && selected="$HOME/$selected"
            fi

            if [[ -z $selected ]]; then
              exit 0
            fi

            selected_name=$(basename "$selected" | tr . _)

            if ! is_tmux_running; then
              tmux new-session -ds "$selected_name" -c "$selected"
              hydrate "$selected_name" "$selected"
            fi

            if ! has_session "$selected_name"; then
              tmux new-session -ds "$selected_name" -c "$selected"
              hydrate "$selected_name" "$selected"
            fi

            switch_to "$selected_name"
          '';
        })
      ];
    };
}