Dear Maintainer,

your package depends or otherwise uses db5.3 ("Berkeley DB"). The
upstream of db5.3 has ceased maintaining it, and it is also orphaned
in Debian. See #987013 for discussion. Please update your package to
remove any uses of db5.3 for forky.
If necessary, provide an upgrade path in forky and remove usage in
duke.

Chris

Let's remove jack-audio-connection-kit (jack1) for forky.
Most of the reverse dependencies build with jack2 preferrably.
Is there any package in the archive that builds with libjack-dev but not
with libjack-jackd2-dev?

No, they are two different implementations. Please leave them alone.

Cheers