Let's make a Hello World example in scala-cli.
Create a file hello_sharaf.sc and paste this code into it:

      //> using scala "3.4.0"
//> using dep ba.sake::sharaf:0.4.0

import io.undertow.Undertow
import ba.sake.sharaf.*, routing.*

val routes = Routes:
  case GET() -> Path("hello", name) =>
    Response.withBody(s"Hello $name")

Undertow.builder
  .addHttpListener(8181, "localhost")
  .setHandler(SharafHandler(routes))
  .build
  .start()

println(s"Server started at http://localhost:8181")

Then run it like this:

scala-cli hello_sharaf.sc 

Go to http://localhost:8181/hello/Bob.
You will see a "Hello Bob" text response.

---

The most interesting part is the Routes definition.
Here we pattern match on (HttpMethod, Path).
The Path contains a Seq[String], which are the parts of the URL you can match on.