You might find my recent blog post interesting too: http://dpldocs.info/this-week-in-d/Blog.Posted_2022_08_01.html#exception-template-concept
and a draft of some more concepts: http://arsd-official.dpldocs.info/source/arsd.exception.d.htmlI also find the lack of information disturbing, but I also hate formatting it all into strings, so I wanted to experiment with other options there that avoid the strings.