Limits with OPDS Support due to authentication

[kulak]

Multiple mobile apps support OPDS without authentication.

I tested 3 apps on iOS and only one provided user and password (Yomu):

• Yomu Reader provides user id and password and as a result works.
• KyBook 3 does not provide user id and password. KyBook 3 still works on iOS as long as access to local network is enabled manually in settings -> apps -> KyBook 3.
• Cantook by Aldiko does not take user id and password. I liked this one the most.

I used dir2opds to test apps without user id and password.

[aaronleopold]

You can use an API key to get around the credentials requirement: https://www.stumpapp.dev/guides/opds#using-an-api-key