Ian/Dirk, Have you seen
<https://bugs.launchpad.net/vm/+bug/1979048> ? This points to a branch of VM at <https://code.launchpad.net/~markd-kermodei/vm/vm-emacs-28> which apparently at some point in time passed native compilation (I never got a chance to try to far). I can try to follow up with Uday Reddy and Mark Diekhans to try merging the native compilation fixes into the main branch (at least). Afaict, part of the problem was Emacs 29 not being out when this was reported, and Emacs 28 having native compilation off by default but on for the Debian packages. In any case, Emacs 29 is out now, so I guess time to ask again. Best -k