diff -rN -u old-hikari/src/server.c new-hikari/src/server.c
--- old-hikari/src/server.c	2023-02-16 13:15:24.797244377 +0100
+++ new-hikari/src/server.c	2023-02-16 13:15:24.797244377 +0100
@@ -523,6 +523,9 @@
 server_decoration_handler(struct wl_listener *listener, void *data)
 {
   struct wlr_server_decoration *wlr_decoration = data;
+  if (wlr_decoration->surface->role == NULL) {
+    return;
+  }
   struct hikari_view *view =
       wl_container_of(wlr_decoration->surface, view, surface);
   struct wlr_xdg_surface *xdg_surface =
patch bc1727d6444f21c0fb952e8c853d5110b5602403
Author: alex@xanderio.de
Date:   Fri Dec 17 20:14:29 CET 2021
  * prevent gtk4 application from crashing hikari