I have it listed here in my elpa packages listing. A very short summary from

the package itself is as follows:

`plz' is an HTTP library for Emacs. It uses `curl' as a backend, which
avoids some of the issues with using Emacs's built-in `url' library.

HTH, brickviking

On Fri, 3 Nov 2023 at 15:31, Richard Stallman <rms@gnu.org> wrote:

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> > Totally. Perhaps if you had a look into plz you would appreciate this
> > fact :-).

I looked at plz (disambiguation) in Wikipedia, and found nothing
that seems to be what you mean here. What is the plz in question?

--
Dr Richard Stallman (https://stallman.org)
Chief GNUisance of the GNU Project (https://gnu.org)
Founder, Free Software Foundation (https://fsf.org)
Internet Hall-of-Famer (https://internethalloffame.org)