Dear Colleagues, The weblinks for the Daresbury Laue software source code and information have become hidden from a simple google search. This short article at IUCr Journals makes clear where the software source code and information can now be found. See:- https://journals.iucr.org/s/issues/2021/02/00/me6120/index.html Best wishes, John Emeritus Professor John R Helliwell DSc