upload only folders

My kids create files that I would like to sync to my NextCloud client, but I don’t want all my files to sync to their computers. How do I create a folder sync connection on my child’s computer that will only upload the files there and won’t download files from the NextCloud server?

For example, my daughter records her gaming sessions. I want the videos she creates to upload to my existing Videos folder on the NextCloud server. But there are other files there that shouldn’t be on my daughter’s computer; I don’t want her computer to download any of those files.

I think it’s best if you create a subfolder for those files, then only select that folder for syncing.
That way she will only download the files that belong to her and nothing else.

The enquiry is already a few days old. But it could also make sense if your children simply had their own user accounts. After all, using your own Nextcloud accounts is actually the principle behind collaborative working with Nextcloud. Of course, you can still share files, folders or use group folders.