Orisha is an HTTP server and pattern-matching router written in Koru and compiled to native code via Zig. Routes are declared with a concise DSL and compiled down to straight-line dispatch — the router is gone before the first request arrives. Static files are embedded at compile time with pre-rendered responses, and serve is a Koru flow over a platform pump, so the same handler runs on epoll, io_uring, a unikernel with no operating system, or a wasm reactor.

The shape of it

orisha:static(name: "site", root: "public", fallback: "index.html")

orisha:handler = orisha:router(req)
! [GET /api/health] -> { status: 200, body: "ok", content_type: "text/plain" }
! [*] |> orisha:static-router(name: "site")

orisha:serve(port: 3000)
| shutdown s |> std/io:print.ln(s)
| failed f |> std/io:print.ln(f)

Dynamic API routes, static files as the catch-all, one handler — adapted from the mixed-server example in the Orisha repo.

Proven in production

Documentation