[me_me_mu_mu]

Use managed services for any crud services like your REST api or whatever with auto scaling. Use firebase auth (free at all scales) and Firestore for real time updates and firebase messaging for notifications. You can use it for static content hosting too.

I’m still working on my idea but I ran some cost and performance simulations and this setup should work well enough at scale at a low cost that once it’s an issue I’m sure I will have enough money to hire experts to build custom solutions to fill any gaps.

[star_juice]

Is it possible you could share more specifics about these simulation figures? While I'm still very much pursuing technical/organizational info about what underpins the big scalable services (or the meta-scalable ones like firebase, which itself helps other devs make scalable apps) I'd be very interested to know how stark the difference in cost/performance is for this managed crud/firebase-heavy solution vs other offerings, or even just as a baseline of whats out there in the space of easier-to-architect scaling options.