system/pkgs/app/terminal/tmux.nix

{ pkgs, lib, ... }:

{
  home.packages = with pkgs; [
    tmux
  ];
  programs.tmux = {
    enable = true;
    prefix = "C-s";
    shortcut = "a";
    # aggressiveResize = true; -- Disabled to be iTerm-friendly
    baseIndex = 1;
    newSession = true;
    # Stop tmux+escape craziness.
    escapeTime = 0;
    # Force tmux to use /tmp for sockets (WSL2 compat)
    secureSocket = false;
    mouse = true;
    keyMode = "vi";
    terminal = "xterm-256color";


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

  # extraConfig = ''
  # #   # 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
  #   # easy-to-remember split pane commands
  #   bind | split-window -h -c "#{pane_current_path}"
  #   bind - split-window -v -c "#{pane_current_path}"
  #   bind c new-window -c "#{pane_current_path}"
  # '';
  };
}