nix/home-manager/wm/waybar.nix

{
  programs.waybar = {
    enable = true;
    settings = {
      mainBar = {
        layer = "top";
        position = "top";
        height = 16;
        output = [
          "eDP-1"
        ];
        modules-left = [
          "river/tags"
        ];
        modules-center = [
          "clock"
        ];
        modules-right = [
          "pulseaudio"
          "network"
          "memory"
          "cpu"
          "temperature"
          "battery"
          "tray"
        ];
        "river/tags" = {
          num-tags = 10;
          tag-labels = [ "1" "2" "3" "4" "5" "6" "7" "8" "9" "0" ];
          set-tags = [ 1 2 4 8 16 32 64 128 256 512 ];
          toogle-tags = [ 1 2 4 8 16 32 64 128 256 512 ];
        };
      };
    };
  };
}