{ pkgs, config, ... }:
{
  programs.tmux = {
    enable = true;
    shortcut = "b";
    # aggressiveResize = true; -- Disabled to be iTerm-friendly
    baseIndex = 1;
#    newSession = true;
    # Stop tmux+escape craziness.
    escapeTime = 0;
    secureSocket = true;

    plugins = with pkgs; [
      tmuxPlugins.better-mouse-mode
      tmuxPlugins.sidebar
      tmuxPlugins.nord
    ];

    extraConfig = ''
      # scrollback size
      set -g history-limit 50000
      # https://old.reddit.com/r/tmux/comments/mesrci/tmux_2_doesnt_seem_to_use_256_colors/
      set -g default-terminal "xterm-256color"
      set -ga terminal-overrides ",*256col*:Tc"
      set -ga terminal-overrides '*:Ss=\E[%p1%d q:Se=\E[ q'
      set-environment -g COLORTERM "truecolor"

      # Mouse works as expected
      set-option -g mouse on
      # Redraw the client (if interrupted by wall, etc)
      bind R refresh-client
      # reload tmux config with ctrl + b + r
      unbind r
      bind r \
           source-file ~/.tmux.conf \;\
	   	display 'Reloaded tmux config.'
      # C + control q to kill sessio
      unbind q
      unbind C-q
      bind-key q kill-session
      bind-key C-q kill-session

      # Switching panes with alt
      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

      # Visual Activity Monitoring between windows
      setw -g monitor-activity on
      set -g visual-activity on

      # Show tmux positions in titles
      set -g set-titles on

      # Attach to a session if runs otherwise create a new one
      new-session -n DRI
    '';
  };

#  programs.tmate = {
#    enable = true;
    # FIXME: This causes tmate to hang.
    # extraConfig = config.xdg.configFile."tmux/tmux.conf".text;
#  };
}