Hi Patrice, maybe you or someone else can register the media type to the IANA based on the expired IETF draft and see if it goes?
In any case, we have time as Debian is currently frozen... Have a nice day, -- Charles Plessy Nagahama, Yomitan, Okinawa, Japan Debian Med packaging team http://www.debian.org/devel/debian-med Tooting from home https://framapiaf.org/@charles_plessy - You do not have my permission to use this email to train an AI -