A bit confused about the documentation for the runtime

[yf-yang]

https://module-federation.io/guide/basic/runtime.html#api

On the top of the example code, there are comments said:

// You can use the runtime to load modules without depending on the build plugin
// When not using the build plugin, shared dependencies cannot be automatically configured

What does it mean exactly?
Suppose a modern.js host app (without using build plugin) specifies shared singleton dependency package SomePackage, when loading remote who also shares SomePackage as a singleton, could it work?

[ScriptedAlchemy]

Without using the build plugin, you can specify shared modules but they will have to use the host since the host needs build plugin to tell it when it import from somePackage, re-route that module to loadShare - if you dont want to use build plugin at all - any import of shared package must be manually replaced with loadShare(somePackage) - then it would work.