Oh yep, I was thinking of “use client”
https://nextjs.org/docs/app/building-your-application/render...
Re:React 19 Beta
by throwitaway1123 on Friday April 26, 2024 @06:39PM
(#40175088)
That's also baked into React: https://react.dev/reference/rsc/use-client
https://react.dev/reference/rsc/server-actions