Prepending a base route to existing routes

[nullptr7]

import zio.*
import zio.http.*
import zio.http.codec.*
import zio.http.endpoint.AuthType.None
import zio.http.endpoint.Endpoint

object ZIOHttpTest extends ZIOAppDefault:
  private object endpoints:
    val helloEndpoint: Endpoint[Unit, Unit, ZNothing, String, None] =
      Endpoint(Method.GET / "hello" / "world")
        .out[String]

    val greetEndpoint: Endpoint[Unit, Unit, ZNothing, String, None] =
      Endpoint(Method.GET / "greet")
        .out[String]

  private val helloRoute: Routes[Any, Nothing] =
    endpoints
      .helloEndpoint
      .implement(_ => ZIO.succeed("some business logic"))
      .toRoutes

  private val greetRoute: Routes[Any, Nothing] =
    endpoints
      .greetEndpoint
      .implement(_ => ZIO.succeed("some greeting business logic"))
      .toRoutes

  private val allRoutesCombined = helloRoute ++ greetRoute

  /** need to prepend 'test-services' to all my routes */
  override val run: ZIO[Any, Throwable, Nothing] =
    Server.serve(allRoutesCombined.nest("test-services")).provide(Server.defaultWithPort(9000))

The nest function does not work and returns a Malformed error when I call localhost:9000/test-services/hello/world.

I tried reading some documentation related to Routes and Endpoint however I cannot find a way to prepend test-services Path to my existing Route or Endpoint.

My APIs are:
hello/world
greet

and before submitting it to Server I want my routes to be prepended with test-services, any suggestions as to what I am doing wrong. Ofcourse, I can add test-services explicitly to all my Endpoints but this makes it restrictive since every endpoint need to have the same test-services path.

Using Scala 3.3.4 with zio-http 3.0.1