diff -Naur a/gio/glib-compile-schemas.c b/gio/glib-compile-schemas.c
--- a/gio/glib-compile-schemas.c	2021-04-08 16:00:16.752500500 +0200
+++ b/gio/glib-compile-schemas.c	2021-04-17 18:13:08.126766350 +0200
@@ -1231,7 +1231,7 @@
                    _("The path of a list must end with “:/”"));
       return;
     }
-
+/*
   if (path && (g_str_has_prefix (path, "/apps/") ||
                g_str_has_prefix (path, "/desktop/") ||
                g_str_has_prefix (path, "/system/")))
@@ -1244,7 +1244,7 @@
       g_printerr ("%s\n", message);
       g_free (message);
     }
-
+*/
   state->schema_state = schema_state_new (path, gettext_domain,
                                           extends, extends_name, list_of);