Dynamic remote register with either window object/promise RsBuild & Module Federation 2.0

[annfredin]

tools: {
    rspack: (config, { appendPlugins }) => {
      appendPlugins([
        new ModuleFederationPlugin({
          name: 'host',
          remotes: {
            remote1: 'remote1@http://localhost:3001/mf-manifest.json',
          },
          shared: ['react', 'react-dom'],
        }),
      ]);
    },
  },

The above working, but when i change as below not working.

1. window object

remotes: {
    remote1: 'remote1@[remote_apps.app1]/mf-manifest.json',
},

2. promise

remotes: [
    {
        remote1: {
            external: "Promise.resolve(window.remote_apps.app1)",
}]

If I use init method to init & register

init({
  name: 'host',
  remotes: [
    {
      name: 'app1',
      entry: 'http://localhost:3001/mf-manifest.json',
    },
  ],
});

Then sync import ==> import {button } from "app1/button" not working

can someone suggest me the better way for dynamic register

[ScriptedAlchemy]

You can use runtime plugins to control remote loading and injection for stuff like this.
https://module-federation.io/plugin/dev/index.html

look in module-federation-examples/runtime-plugins repo and youll see many examples