udev problems with systemd version 258

[frie]

The PassKeez service recently stopped working on my Arch system. In the logs I found an error message indicating that the udev rule for the uhid device was not loaded because the fido group is not a system group.
After manually setting the gid to 499 things worked again.
I did not observe this problem on my Debian Bookworm system, where systemd 252 is running.
I think there are discussions around that recent versions of systemd (just starting with 258) behave different with respect to udev (https://bbs.archlinux.org/viewtopic.php?pid=2263348).
Maybe the postinst function of the install script needs a modification to force the fido group to become a "system" group (groupadd -r)

[frie]

see https://lists.freedesktop.org/archives/systemd-devel/2025-September/051670.html:
systemd-udevd ignores OWNER=/GROUP= settings with a non-system user/group specified in udev rules files, to avoid device nodes being owned by a non-system user/group.

[r4gus]

Thank you for reporting this!

I'll look into it. Currently, I'w resolving an issue with the kdbx library that was introduced with the Upgrade to Zig version 0.15.1.

I can't say how long it will take, but I'll try to update the installer script with the next Release.

[frie]

Not the most urgent issue, but maybe other users might run into the same problem.
The solution in this case:

sudo groupdel fido
sudo groupadd -r fido
sudo usermod -aG fido [own-userid]

Then reboot...

[r4gus]

The following commit b2df210 added the -r option to the install script. I'll leave this issue open in case somebody else runs into the same problem.