Usando o Discourse Auth Proxy como provedor SSO para outro site

I have the same idea, I am going to use my discourse instance as my SSO provider for my private deployment of outline and it requires the following configuration items:

I am unaware of how to achieve this. I came across Discourse Auth Proxy in another Discourse Connect post, but there was no detailed documentation on its usage. Have you found a solution or could you guide me on how to implement it? I appreciate your assistance.