waybar-hyprland: Use custom overlay

This fixes an issue where waybar-hyprland would break with
hyprland-autoname-workspaces.

modules/waybar/default.nix

@@ -1,12 +1,10 @@
 { lib
-, hyprland
 , ...
 }: {
   home-manager.sharedModules = [
     {
       programs.waybar = {
         enable = true;
-        package = hyprland.packages."x86_64-linux".waybar-hyprland;
 
         settings = {
           mainBar = {

overlays/default.nix

@@ -4,5 +4,6 @@
     ./joshuto
     ./kitty
     ./rofi
+    ./waybar
   ];
 }

overlays/waybar/default.nix

@@ -0,0 +1,14 @@
+{
+  nixpkgs.overlays = [
+    (final: prev: {
+      waybar = prev.waybar.overrideAttrs (old: {
+        postPatch = /* bash */ ''
+          # use hyprctl to switch workspaces
+          sed -i 's/zext_workspace_handle_v1_activate(workspace_handle_);/const std::string command = "hyprctl dispatch workspace e+1";\n\tsystem(command.c_str());/g' src/modules/wlr/workspace_manager.cpp
+        '';
+
+        mesonFlags = old.mesonFlags ++ ["-Dexperimental=true"];
+      });
+    })
+  ];
+}