But what about the bazillions of other providers involved in building an app e.g. GitHub, npm, circleci, sentry, the App Store, sendgrid, mail chimp etc. etc. S

But what about the bazillions of other providers involved in building an app e.g. GitHub, npm, circleci, sentry, the App Store, sendgrid, mail chimp etc. etc. Sure you can code/implement everything yourself on an eco-friendly server but that's unrealistic/wasteful these days. A registry of SaaS providers that respect the environment would be very useful.