Example uses webpack-dev-server which is presently in a maintenance-only mode

[kbrown]

Please note that webpack-dev-server is presently in a maintenance-only mode and will not be accepting any additional features in the near term. Most new feature requests can be accomplished with Express middleware; please look into using the before and after hooks in the documentation.

For reference https://github.com/webpack/webpack-dev-server

Mostly I created this issue because I want to have a discussion on what the alternative "Express middleware" would be

[joyfulelement]

Would the example below from @yzrzya1 helps?

https://github.com/me-12/single-spa-portal-example/issues/68#issuecomment-462451301