How to scale out nextcloud
Putting together several nextcloud sites with https://nextcloud.com/globalscale/
With this app https://apps.nextcloud.com/apps/globalsiteselector users are directed to their assigned instance (NC <=19, updates 20, 21 expected ) https://github.com/nextcloud/globalsiteselector
The README explains how to set up primary and secondary servers https://github.com/nextcloud/globalsiteselector/blob/master/README.md (LDAP not yet supported?)
White paper https://nextcloud.com/media/wp135098u/GlobalScale-Whitepaper-WebVersion-072018.pdf
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information