Nextcloud app that allows admins to pre-generate previews. The app listens to
edit events and stores this information. Once a cron job is triggered it will
start preview generation. This means that you can better utilize your system by
pre-generating previews when your system is normally idle and thus putting less
load on your machine when the requests are actually served.

The app does not replace on demand preview generation so if a preview is
requested before it is pre-generated it will still be shown.