The Debian seatd source at //sources.debian.org/src/seatd/0.7.0-6~bpo11+1/ indicates the upstream sourcecode repository is //git.devuan.org/devuan/seatd

The list of tags has "debian/0.7.0-6" but no "devuan/anything" since 0.5.0-1 (despite daedalus,ceres,excalibur having newer versions), and also no tag matching the bullseye backport 0.7.0-6~bpo11+1.

So I'm assuming that from 0.5.0-2 onwards both Debian and Devuan have been using the same version, and the only actual difference between seatd_0.7.0-6_amd64.deb and seatd_0.7.0-6~bpo11+1_amd64.deb are different libc versions used when compiling the binaries.

Is there any reason installing seatd_0.7.0-6~bpo11+1_amd64.deb from bullseye-backports repo on a chimaera system will cause issues?

The Devuan package page for 0.5.0-1 has "Origin: Devuan" which suggests it was manually added to Chimaera?

If so, is the manual addition preventing Amprolla from automatically pulling 0.7.0-6~bpo11+1 from bullseye-backports to chimaera-backports, or is there some other reason that this is not coming across?

Also, the dependencies for libseat1 are seatd | logind, libc6 (>= 2.33), libsystemd0 (>= 238) - shouldn't that be seatd | logind | libsystemd0 (>= 238), libc6 (>= 2.33) ?