Hi Vekker, In a nutshell, I can say that Appwrite was designed for scale. It uses common MariaDB and Redis containers as storage engines and should support basic clustering out of the box, no hidden magic.

Same goes for backups. All you need is to backup the MariaDB databases and the Appwrite storage folder, just like you would with any basic app architecture. We took great length to have the most simple setup possible.

I do plan to release some tutorials covering our architecture and design decision. In the meantime, you can check our stack on StackShare (https://stackshare.io/appwrite/appwrite) and learn more about how we generate docs and SDKs (https://medium.com/@eldadfux/how-we-integrated-our-docs-and-...).