Ask HN: Is there a standard for building platforms that host apps

Hey HN!<p>I am joining a team as CTO to build a web platform that will eventually host apps built by third-party developers. I plan to build the first-party applications as though they were apps hosted on the platform as well.<p>To this end, I was looking for some reference architectures or standards. I wondered if there was a standard like Matrix[1] or a methodology like Twelve-Factor[2]. Any pointers would be very helpful!<p>The stack I&#x27;m planning to build with is: React, Elixir, PostgreSQL, AWS.<p>[1]https:&#x2F;&#x2F;matrix.org&#x2F; [2]https:&#x2F;&#x2F;12factor.net&#x2F;