[arrowsmith]

> The backend does not own UI state.

It does with Phoenix LiveView. And for stuff that shouldn't need to talk to the backend I find Alpine.JS to be a comfortable option that's very lightweight and several orders of magnitude less complex than React.

[yurishimo]

How have you found the latency to be? Are you shipping in multiple regions? Is this something you think about actively? I know there are ways to optimistically update if you want, but that sort of defeats the purpose imo. (I say this as someone extremely interested in Elixir/Phoenix)

[christophilus]

I tried something like liveview way back in the day (10 or 15 years ago) and latency was the killer. It’s probably much better these days with 5G and more efficient refreshing (we did full page refreshes, IIRC). But this is still the reason I won’t use liveview or an equivalent. If you do run into latency issues, you’re in for a world of pain if your entire application is architected incorrectly.