This document is still in development.
Ory Keto requires a production-grade database such as PostgreSQL, MySQL, CockroachDB. Don't use SQLite in production!
Never expose the Ory Keto Write API to the internet unsecured. Always require authorization. A good practice is to not expose the Write API at all to the public internet and use a Zero Trust Networking Architecture within your intranet.
There are no additional requirements for scaling Ory Keto, just spin up another container!