{
  programs.tmux = {
    enable = true;
    keyMode = "vi";
    extraConfig = ''
      bind | split-window -h
      bind - split-window -v
      unbind '"'
      unbind %

      bind -n M-Left select-pane -L
      bind -n M-Right select-pane -R
      bind -n M-Up select-pane -U
      bind -n M-Down select-pane -D
    '';
  };
}