Hi,

> On Sep 12, 2023, at 18:47, Stefan Kangas <stefankangas@gmail.com> wrote:
> 
> Ping.  Did you make any progress with this?

No, I completely forgot. I also don’t use oauth2 on Emacs anymore. org-gcal.el https://github.com/telotortium/org-gcal.el migrated to use the library I wrote (oauth2-auto https://github.com/telotortium/emacs-oauth2-auto), and I transferred that library to the maintainer of org-gcal.el, Robert Irelan. I don’t know what happened to org-caldav.

I’m happy to help review a patch, but have no time to make it myself.

All the best,
Adrià