Next.js creator Guillermo Rauch announces Vercel has extended function runtime limits using its new custom microVM infrastructure, Fluid

A sandbox A function A server A build

Are you getting it!? These are all expressions of the same underlying compute infrastructure.

With tweaks to load balancing, concurrency, persistence, overcommit…

2026 is the year serverless and servers finally converge. With no gotchas

@MittaiApp By not using AWS Lambda but still going to heroic extents to maintain excellent backwards compatibility while unlocking some incredible new capabilities 😉

@rauchg You might call it "fluid" compute

@TheAnirudh @rauchg Websockets soon

@Everlier @rauchg Don’t need it. Doesn’t exist in my system

@rauchg FINALLY

@rauchg Sandboxes might be my least favorite thing

@rauchg One day it might run for an infinite amount of zeit

@cramforce Most aptly named technology 😁

@rauchg Thanks Steve

@rauchg Does it support websockets? Is it on the roadmap?

@rauchg How? AWS Lambdas are capped at 15 mins 👀

@rauchg will it be cheaper than cloudflare ? one huge short coming of worker is that it has limited memory for agents, forcing users to use workflow...etc which i dont want to, extra setup

@rauchg You also need a primitive for durable state, then it's an agentic paradise :)

@rauchg Websockets when?

@59thProfile @rauchg CRDT goes wroom :)

@Everlier @rauchg Yeah basically. I achieved bidirectional communication with sse as well. As far as I’m aware, this is a new use of sse not seen anywhere

@59thProfile @rauchg CRDT goes woosh then :D

@Everlier @rauchg What's durable state, persistence? Why not databases?

@tomlienard @rauchg Would love to get in a preview. Have a workload that requires websockets. Prefer not to move away from Vercel.