[mikepurvis]

> In recent years, we introduced Runner (https://gobolinux.org/runner.html)

Clever. Seems like it's essentially a way to "pause" the rolling distro at a known-good point, and then use that environment to build whatever high-level stuff it is with your set of frozen dependencies— this would definitely do the thing, and would have been very helpful for the ROS on Homebrew effort.

OTOH, how different is this from Debian Sid as the rolling release that is occasionally broken when a new low level dep comes in, with the supported releases of Debian, Ubuntu, and others as the shared pause-points? I think ultimately I find it easier putting the work of finding a set of interoperable versions of things onto my distro maintainer (and in exchange knowing that if I want the cutting edge I'll have to do my own backport or go to PPAs), rather than taking on that work myself and hoping for the best or risking getting stuck with a bunch of super-old stuff and no clear migration path forward.