Micro Frontends: How?
Once you have a reason to split the UI, the next decision is how the pieces become one page. That assembly step is composition: the host application — the shell — decides where each slice renders and what it is allowed to see. There are a few honest ways to do it. I picked one for the companion: the browser loads separately built bundles and mounts them as custom elements — HTML tags the host did not compile. That is client-side composition. It is not the only option, and it is not a production platform by itself. ...