Learning to design Kerberos based auth system

I have a uni assignment to design an authentication framework based on Kerberos. Now I know a little about Kerberos and learning the protocol in some detail. But it is not widely used outside of Microsoft AD. Most modern auth is based on OAuth/OIDC nowadays and I am having a little hard time to design one. Can someone give me links or resources on Kerberos based auth that I can lookup. An example would be very good. I don't want …

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