Writable storage behind ps.w.org / s.w.org?

We’re fixing a stale-thumbnail bug on the pluginPlugin A plugin is a piece of software containing a group of functions that can be added to a WordPress website. They can extend functionality or add new features to your WordPress websites. WordPress plugins are written in the PHP programming language and integrate seamlessly with WordPress. These can be free in the WordPress.org Plugin Directory https://wordpress.org/plugins/ or can be cost-based plugin from a third-party. directory (wordpress.org#693) by generating resized screenshot thumbnails (300/600/900px) at ingest time instead of routing them through Photon.

ps.w.org currently serves files straight out of plugin SVNSVN Apache Subversion (often abbreviated SVN, after its command name svn) is a software versioning and revision control system. Software developers use Subversion to maintain current and historical versions of files such as source code, web pages, and documentation. Its goal is to be a mostly compatible successor to the widely used Concurrent Versions System (CVS). WordPress core and the wordpress.org released code are all centrally managed through SVN. https://subversion.apache.org/., so we don’t have anywhere writable to store the generated thumbnails. Does a writable path already exist behind ps.w.org or s.w.org for this kind of generated asset, or do we need one set up?

Context: https://github.com/WordPress/wordpress.org/pull/693#issuecomment-5022981540