Hyperfiddle/Photon, a new web stack with compiler managed client/server datasync
hyperfiddle.notion.site
hyperfiddle.notion.site
I've achieved something very similar, but for Python[1].
I believe this approach will become the dominant paradigm in the future, precisely because of what of what you can't see - no API and no client/server separation - eliminates a whole bunch of accidental complexity.
My first startup a decade ago used a similar approach to build a exploratory visual analytics environment - lisps rock at this.
It's neat that Hyperfiddle subsumes data access, too. I have a similar compiler-driven approach that will ship later this year for desktop/mobile apps.