Open source · Declarative UI · JS + Java

Your server describes the UI.

A framework for declarative, server-driven components. Return a JSON spec from your backend — tables, forms, timelines, and more — and the browser renders it. No frontend code to write, no frontend to deploy.

z.object({
  title: z.string(),
  done:  z.boolean(),
})

{
  "kind": "table",
  "columns": [ … ],
  "endpoints": { … }
}