Vercel built its name on frontend deployments. Push code, get a URL, done. Backends were a different story — if your app didn’t fit Vercel’s supported frameworks, you were out of luck. That changed this week. Vercel now runs any HTTP server straight from a Dockerfile, letting teams bring a Rails, Django, Spring Boot, or Go app and have Vercel build, deploy, autoscale, and run it on Fluid compute with Active CPU pricing.