I was wondering if it would be templated as you mentioned. I feel like it would be best utilized when starting a new project. Maybe there could be flags added to the create-redwood-app command so that it is added on install.
Eg. yarn create redwood-app my-redwood-app --auth-netlify
Actually, it would be cool in general to add some flags to CRWA command that you could chain together. Such as adding Netlify auth and Tailwind with flags. Pretty much adding any of the RW setup commands as flags.
Eg. yarn create redwood-app my-redwood-app --auth-netlify --tailwind --deploy-netlify