Hello Andy,

the patch fails on 32 bit according to QA:
   https://qa.guix.gnu.org/issue/77398/package-changes?i686-linux-change=broken&i686-linux-change=still-failing&i686-linux-change=unknown-to-failing&i686-linux-change=new-failing

The somewhat surprising error message in
   https://bordeaux.guix.gnu.org/build/cb17cf76-2ea0-4a1e-b19f-2f7220cc4a8a/log
is:
In file included from /gnu/store/83yp83mwzvdqn0qhr7hvs5cvizrcf76a-fuse-3.10.5/include/fuse3/fuse_lowlevel.h:25,
                 from chansrv_fuse.c:155:
/gnu/store/83yp83mwzvdqn0qhr7hvs5cvizrcf76a-fuse-3.10.5/include/fuse3/fuse_common.h:853:1: error: static assertion failed: "fuse: off_t must be 64bit"
  853 | _Static_assert(sizeof(off_t) == 8, "fuse: off_t must be 64bit");

Does this mean that fuse@3 only works on 64 bit platforms?
In any case, going back to fuse@2 will probably solve the problem.

Then I would suggest to write two commits for the two separate projects.

Thanks!

Andreas