Hey,
I've prepared the Debian package of the Ruby gem isolate.
The package was tested on sbuild and was successfully built. It was also
lintian clean.
I've pushed the changes to the salsa repo which may be found at:
https://salsa.debian.org/ruby-team/ruby-isolate
It is to be uploaded to close a bug (#705332), reported for another package :)
Best,
Utkarsh