(Same answer as a more deeply nested comment below)

The technology is extremely flexibile, off the top of my head:

* Education (Linux, Programming, Security, ...)

* Live docs for arbitrary languages and binary libraries

* Preservation of historical software and games

* Virtualization of legacy Windows enterprise apps.

* Dev environment for Web IDEs

Just a few examples, the list could go on for long

Very interesting, thanks! and good luck on the project.

installing emacs in my web browser?

This isn't WebVM specifically, but one example using WebContainers we've built is https://demo.graphweaver.com/

This runs a NodeJS server and frontend in your browser so you can see what Graphweaver can do without having to install or run anything more than a browser on your computer. The example has an SQLite database joined to a REST API. Graphweaver serves a GraphQL API with the result.

Making your senior engineers take off their glasses, sigh, and pinch the bridge of their nose.

I don't get you, how about the juniors ?

Nod their heads with approval to mask their confusion.

Just a curiosity to play a bit