Can someone explain how this can actually work for a medium sized CRUD app? I’m a dev and don’t understand. I get hosting static or cached files at the edge and serving them. And I get how you could run PHP or another server-side language on edge servers too. But you want a single source of truth and if there’s a database involved, you still need to host that somewhere and the true latency will be at this step.

Are there simple modern solutions for maintaining the same database on servers all over? (This doesn’t even sound like a good idea, or at least like it would either be impossible or would have tradeoffs, and sounds like a minor optimization anyway)

Or are Deno etc only used for database-less sites?

Or is everyone just obsessed with TTFP (screen painting) load times because users hate waiting but like pretty loading spinner gifs?