Dear Maintainer,

I noticed while browsing Debian Code Search that
this package creates /var/cache/haci with debian/dirs.

This makes it piuparts compliant; but I guess that
after some real world usage of this package there
would be some files in this directory.

Please ensure that these directories are cleansed on purge.

This can be handled by a full blow  .postrm script
or with a one-line debian/purge file
& a dependecy on dh-sequence-cruft.

Greetings

Alexandre