How to implement only arc from authentication_milter

[usama]

I need one help can anyone give me clear guidance how can I implement only arc module from authentication milter I have postfix mailserver with opendkim and opendmarc and we're using multiple sending domains from the same mailserver. I'll really appreciate your help thank you so much.

[Koratsuki]

I'm on the same page, even same setup. Any help is greatly appreciated.