[PROJ] downloadable documentation ?

[Greg Troxel]

Javier Jimenez Shaw <j1 at jimenezshaw.com> writes:

> In proj.org, in the left menu (burger menu in a cellphone) you can download
> as pdf or html
> For instance https://proj.org/_/downloads/en/9.5/pdf/

Thanks - I had no idea!

Is there a stable URL, where I can be guaranteed of the same bits for a
repeat request, in the same way that a distribution tarball is fixed?
It seems like this is a nightly build of the 9.5 branch, but I'm not
sure.

Where are the sources?

What do other packagers do?