Hi Florian,

> For drawing-widget.scm on x86_64, klass->snapshot looks high like a
> code segment address but has a bogus disassembly.  Was it clobbered?

can you try the following

	scheme@(guile-user)> ,use (g-golf)
	scheme@(guile-user)> (gc-disable)
	scheme@(guile-user)> (chdir "/your/path/to/examples/gtk-4") ;; <- FIX /your/path/to HERE ofc
	scheme@(guile-user)> (load "drawing-widget.scm")
	scheme@(guile-user)> (main '("-d"))

  and let me know ...

David