>> > # apt install -t=bookworm db-util db5.3-util libc-bin libc-dev-bin
>>
>> I can never remember exactly what `-t` really does, but I suspect you'll
>> need things like
>>
>> apt install libc-bin/bookworm
>
> To install a single backported (or other release) package,
> apt-get install packagename/releasename
>
> and to install a backported package plus dependencies which
> are also from that specific release, use
> apt-get -t releasename packagename
But that's not the whole story of what `-t` does since the above does
not explain why his attempt to use `-t` to downgrade some packages
resulted in `apt` saying "<blabla> is already the newest version".
Stefan
