On Oct 09, 2023, Antony Stone wrote:
> [...]
> root@cerberus:/etc/apt/sources.list.d# cat debian.sources
> Types: deb deb-src
> URIs: mirror+file:///etc/apt/mirrors/debian.list
> Suites: bookworm bookworm-updates bookworm-backports
> Components: main
>
> Types: deb deb-src
> URIs: mirror+file:///etc/apt/mirrors/debian-security.list
> Suites: bookworm-security
> Components: main
>
> I have never seen anything like that before in /etc/apt/sources.list.d

This is (as I understand it) the "DEB-822" format as opposed to the
one-line option (see sources.list(5) for details).

As I understand it (read: poorly), deb-822 format is slightly easier to
manage with the deprecation of apt-key (and the global
/etc/apt/trusted.gpg). I don't recall any indications that it's planned
to supplant the one-line style, at least as an "official" thing direct
from Debian (i.e. in their ISOs), but then again I haven't been
following things that closely.

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