Thank you for making Yunohost. I am considering setting up a private server, primarily to host a cloud storage that would sync around 1 Tb of data around my three machines. I heard that Nextcloud is not the best choice for such big data. Which alternative program would you recommend?
The cloud should work both within my local home network and via the Internet.
Syncthing and Seafile are the two most popular alternatives to Nextcloud, both support delta sync. Alternatively, Nextcloud can work well for large collections, if the individual files are not too big.
The article you linked is correct on the whole, for most file types delta sync does not matter much. But there are exceptions, like VM disk images, where it matters a lot.