To add to this, it's reasonably easy to run, and has many different plugins, from a calendar and contacts list, to an online document editor (like Google Docs,

To add to this, it's reasonably easy to run, and has many different plugins, from a calendar and contacts list, to an online document editor (like Google Docs, except it can be pretty slow and/or resource intensive: https://nextcloud.com/office/ https://nextcloud.com/office/), to a simple clone of Slack (https://nextcloud.com/talk/ https://nextcloud.com/talk/), a mail client (https://apps.nextcloud.com/apps/mail https://apps.nextcloud.com/apps/mail) and other things. That said, I've had updates (across major versions) break things on multiple occasions, one out of two servers running the exact same version has random crashes and in addition to that the file locking by default (if enabled, but not using Redis: https://docs.nextcloud.com/server/latest/admin_manual/configuration_files/files_locking_transactional.html https://docs.nextcloud.com/server/latest/admin_manual/config...) has broken and prevents me from deleting a file that just sits there and takes up a few GB of space. Oh and their Android app fails to upload files if I use the share option, instead of the file picker from within the app. On the other hand, sure beats storing data on third party clouds and is free, so I'll still keep using it.