[wayland] Adds clipboard fix for wine

home-manager/features/gaming.nix

@@ -50,6 +50,10 @@ in
 
     # WoW addon updater
     wowup-cf
+
+    # For clipboard management.  See below.
+    wl-clipboard
+    xclip
   ];
 
   # xdg.dataFile."applications/wowup-cf.desktop" = {
@@ -57,6 +61,14 @@ in
   #   source = "${patched-desktop}/wowup-cf.desktop";
   # };
 
+  wayland.windowManager.hyprland.settings.exec-once = [
+    # Hyprland doesn't paste into Wine apps.  This program is a workaround.
+    # See https://github.com/hyprwm/Hyprland/issues/2319
+    # -t text = Only handle text
+    # -w xclip -selection clipboard = Watch for events and invoke xclip
+    "wl-paste -t text -w xclip -selection clipboard"
+  ];
+
   # wowup needs options to work under wayland.
   xdg.desktopEntries.wowup-cf = local.electronDesktopEntry {
     name = "WowUp";