feat(nix): add salut service and nm-applet

nix/home-manager/programs/waybar.nix

@@ -1,6 +1,11 @@
 { pkgs, config, repoFlake, ... }:
 
 {
+  home.packages = [
+    # required by any bar that has a tray plugin
+    pkgs.libappindicator-gtk3
+  ];
+
   programs.waybar = {
     enable = true;
     package = repoFlake.inputs.nixpkgs-wayland.outputs.packages.${pkgs.stdenv.hostPlatform.system}.waybar;
@@ -67,15 +72,6 @@
         };
         "clock#date".format = "{:%d %b %Y}";
         clock.format = "{:%H:%M %p}";
-
-        # "custom/hello-from-waybar" = {
-        #   format = "hello {}";
-        #   max-length = 40;
-        #   interval = "once";
-        #   exec = pkgs.writeShellScript "hello-from-waybar" ''
-        #     echo "from within waybar"
-        #   '';
-        # };
       };
     };
   };