Just installed Syncthing on my Scale server. It looks like it doesn’t have users but rather folder IDs that are then used to sync devices. One of the cool features of Nextcloud is the ability to share files with other users. Can this be done with Syncthing?
You can easily selfhost Seafile and make a ‘dropbox’ like system with as many users you like, and as large a storage you can handle / afford. Although there is an enterprise version, the community edition provides with many features to make it really a great service. It is mighty fast, and has native clients for many different platforms, in addition to using the Seafile website to acces, upload and download files.
I never hosted Nextcloud, but from what I read, it is a beast with way too many features to fit my use case. Seafile is doing one thing very well.