pinwheel: Extract waybar module

hosts/pinwheel/modules/waybar/default.nix

@@ -0,0 +1,56 @@
+{ home-manager, pkgs, ... }:
+{
+  home-manager.users.alex = {
+    programs.waybar = {
+      enable = true;
+
+      settings = {
+        bar1 = {
+          name = "bar1";
+          layer = "top";
+          position = "top";
+          height = 30;
+          output = [
+            "eDP-1"
+            "HDMI-A-1"
+          ];
+
+          modules-left = [ "hyprland/workspaces" ];
+          modules-center = [ "custom/hello" ];
+          modules-right = [ "tray" "wireplumber" "battery" "clock" ];
+
+          "custom/hello" = {
+            format = "hello {}";
+            max-length = 40;
+            interval = "once";
+            exec = pkgs.writeShellScript "hello-from-waybar" ''
+              echo "from within waybar"
+            '';
+          };
+
+          wireplumber = {
+            format = "{volume}%";
+            format-muted = "";
+            on-click = "pavucontrol";
+            max-volume = 150;
+            scroll-step = 0.2;
+          };
+        };
+      };
+
+     style = ''
+       #workspaces button.active {
+         background: red;
+       }
+
+       window#waybar {
+         background-color: blue;
+       }
+
+       #custom-hello {
+         background-color: yellow;
+       }
+     '';
+    };
+  };
+}