Interesting & available libraries implementing parts of this particular vision (mentioned in the talk):
- Google's Firebase (meh, though maybe Supabase is mature enough by now to replace this suggestion?)
- Tinybase: https://tinybase.org
- sql.js (SQLite compiled to js): https://sql.js.org/
But there's no single stack available (yet). I'm suprised Nikita didn't mention datascript here (https://github.com/tonsky/datascript) given the neat compatibility it offers with other datalog databases, but maybe he feels it's too niche/immature?