Authorization and read-only mode
It is possible to enable both the read-only mode of the Zettelstore and authentication/authorization. Both modes are independent of each other. This gives four use cases:
- Not read-only, no authorization
- Zettelstore runs on your local computer and you only work with it. 
- Not read-only, with authorization
- Zettelstore is accessed remotely. You need authentication to ensure that only valid users access your Zettelstore. 
- With read-only, no authorization
- Zettelstore presents its full content publicly to everyone. 
- With read-only, with authorization
- Nobody is allowed to change the content of the Zettelstore, and only specific zettel should be presented to the public.