generating of our site is super slow (a minute on my beefy PC), it went up to the point when you need to increase kernel option for inotify
FATAL: Listen error: unable to monitor directories for changes. Visit https://github.com/guard/listen/wiki/Increasing-the-amount-of-inotify-watchers for info on how to fix this. rake aborted!
While I was working on a PR that blacklists old manuals from search engines (https://github.com/theforeman/theforeman.org/pull/1256) I figured out that it would be beneficial to simply delete old manuals (core + plugins) from the site completely or replace them with some stub or redirect.