Is it possible (or desirable) that devpi be able to trigger builds of wheels for packages that it caches? I realise it'd be possible as part of a Jenkins trigger for an upload, but this is for cached packages from PyPI. The actual building could be complex - in the case of current Linux wheels, we'd need to have separate indexes for the wheels for Debian, RHEL, Ubuntu, SUSE, etc. since the wheels are typically not compatible. That complexity could be external to devpi - it's just a case of getting the trigger to indicate that a build is desired. Quite how this integrates with a user just doing a "pip install package" is a little beyond me for the moment - the delay between the cache event and build completing could be significant. In light of that it might be desirable to have a separate process which does all this work (fetches the latest package and performs the build). Has anyone done this? How would it keep up to date? Richard