In <list-10601870@2rosenthals.com>, on 08/16/24
    at 06:26 AM, "Paul Smedley" <ecs-isp@2rosenthals.com> said:

Hi Paul,

https://smedley.id.au/tmp/uacme-1.0.19-os2-20240816.zip is there now.

This one understands @unixroot.  Thanks.

Additional change is that it uses symlink() rather than link().

I don't think this is going to work for use in practice.  When updating a
certificate what uacme does is

   create a new-crt.pem and new-key.pem
   hardlink the existing key.pem to timestamped-key.pem
   hardlink the existing crt.pem to timestamped-crt.pem
   unlink key.pem
   unlink crt.pem
   rename new-crt.pem to crt.pem
   rename new-key.pem to key.pem

With a symlink timestamped-key.pem will not contain the the content of
key.pem, so there will be no useful backup.  The is why is suggested that
the link needed to be replaced with a copy operation.