{ pkgs, inputs, ... }:
{
  programs.tmux = {
    enable = true;
    keyMode = "vi";
    escapeTime = 0;
    historyLimit = 500000;
    aggressiveResize = true;
    terminal = "tmux-256color";
    extraConfig = ''
      # all the colors we can get
      set-option -g default-terminal "tmux-256color"

      # emacs keys in status
      set -g status-keys emacs

      # set focus events
      set-option -g focus-events on

      set -g mouse off

      # curlies
      set -as terminal-overrides ',*:Smulx=\E[4::%p1%dm'  # undercurl support
      set -as terminal-overrides ',*:Setulc=\E[58::2::%p1%{65536}%/%d::%p1%{256}%/%{255}%&%d::%p1%{255}%&%d%;m'  # underscore colours - needs tmux-3.0
      set -ag terminal-overrides ",$TERM:RGB"

      # title
      set -g set-titles on
      set -g set-titles-string "#T"

      # copy to clipboard support
      run-shell ${inputs.self.inputs.tmux-yank}/yank.tmux
    '';
  };

  programs.zsh.interactiveShellInit = ''
    # create new tmux session with $1 as a name
    # if no arguments supplied, use name of current dir

    function tn {
        if [ $# -eq 0 ]
        then
            tmux new-session -s $(basename $(pwd))
        else
            tmux new-session -s $1
        fi
    }
  '';

  environment.shellAliases = {
    tl = "tmux list-sessions";
    ta = "tmux attach -t";
  };

  environment.systemPackages = [
    pkgs.screen
  ];

  programs.screen.screenrc = ''
    defscrollback 10000

    startup_message off

    hardstatus on
    hardstatus alwayslastline
    hardstatus string "%w"
  '';
}