nixos/home-manager/waybar.nix

{ config, ... }: {
  home.file."${config.xdg.configHome}/waybar/config.jsonc" = {
    text = builtins.toJSON {
      height = 35;
      spacing = 4;
      modules-left = [ ];
      modules-center = [
        "clock"
      ];
      modules-right = [
        "pulseaudio"
        "cpu"
        "memory"
        "tray"
      ];

      pulseaudio = {
        # "scroll-step": 1, // %, can be a float
        "format" = "{volume}% {icon} {format_source}";
        "format-bluetooth" = "{volume}% {icon} {format_source}";
        "format-bluetooth-muted" = " {icon} {format_source}";
        "format-muted" = " {format_source}";
        "format-source" = "{volume}% ";
        "format-source-muted" = "";
        "format-icons" = {
          "headphone" = "";
          "hands-free" = "";
          "headset" = "";
          "phone" = "";
          "portable" = "";
          "car" = "";
          "default" = [ "" "" "" ];
        };
        "on-click" = "pavucontrol";
      };

      cpu = {
        format = "{usage}% ";
        tooltip = false;
      };
      memory = {
        format = "{}% ";
      };
      tray = {
        spacing = 10;
      };
    };
  };
}