At present, the external auth docs are great for the provider-side setup (E.G. creating a github oauth app.) However, they're rather severely lacking in information regarding the coder-side setup. There is currently no mention of what environment needs to have the given environment variables set (Template level/coder server process level). It's also unclear how one would go from having an external auth provider set up to being able to use it in a template, especially if you're using dev containers that are part of private github repositories (though I acknowledge that that discussion is perhaps better had in the envbuilder repo.)

In short, would it be possible to either have an update made to the external auth docs, or for a more in-depth guide/quickstart to be made on the matter?