this is a follow-up of my recent announcement of "[up-to-date] JackTrip
packages for Ubuntu".
now, as we have discussed here, if you are using Debian, then the
Ubuntu-PPA is not really the panacea.
so after mike's insistence (thanks) and roman's assistance (thanks),
there are now Debian-backport packages that you can install on your
server running the trusted Debian/stable environment to still get the
latest and greatest JackTrip.
the website should contain all the information to get you started...
however, since mike dearly wished for a 3-line recipe to follow, here
mkdir -p /etc/apt/sources.list.d/
echo "deb http://deb.debian.org/debian
bullseye-backports main" \
| tee /etc/apt/sources.list.d/backports.list
apt-get install -t bullseye-backports jacktrip