I've prepared a patch like suggested by @pjb1008 but I wasn't able to build a package with this patch.
EDIT: But I can confirm that adding the option "--socket" to the luatex command fixes the issue.
I've prepared a patch like suggested by @pjb1008 but I wasn't able to build a package with this patch.
EDIT: But I can confirm that adding the option "--socket" to the luatex command fixes the issue.