The package cryfs that shipped with 15.4 was woefully out of date. The version
that replaced the 9.9 version that Leap is using was replaced back in January
of 2019. In other words, when 15.4 finalized, version 9.9 had been replaced 3
years earlier. Our version is incompatible with any version since late 2019. 

Can we please get a backport, at least new enough to be compatible with other
operating systems?  That would be anything 10.0 or higher.

Thanks,
Lance