Lazy loading a package through a layer

import { MetadataProvider } from "@echo/core-types";
import { Effect, Layer } from "effect";

export const lazyLoadMetadataProvider = Effect.promise(async () => {
  const { mmbMetadataProvider } = await import(
    "@echo/infrastructure-mmb-metadata-provider"
  );
  return mmbMetadataProvider;
});

export const LazyLoadedMetadataProviderLive = Layer.effect(
  MetadataProvider,
  lazyLoadMetadataProvider.pipe(
    Effect.tap((provider) => {
      console.log("Layer has resolved", provider);
    }),
    Effect.tapError((error) => {
      console.error("Uh, oh", error);
      return Effect.fail(error);
    }),
  ),
);

export const WorkerLive = BroadcastChannelLive.pipe(
  ...
  Layer.provideMerge(LazyLoadedMetadataProviderLive),
  ...
);

const worker = Stream.fromEventListener<MessageEvent>(self, "message").pipe(
  Stream.runForEach((event) =>
    Effect.gen(function* () {
      console.log("Hello worker");
      ....
    }),
  ),
  Effect.provide(WorkerLive),
);