[postpress]

> I wish there were more work done in the area of composable GUIs, where the core logic of applications is scriptable and where these elements can be combined in ways that could be even more expressive than Unix pipes are. Every now and then I have thoughts about taking a modern Smalltalk implementation and writing a suite of composable GUI apps as a demonstration of this idea.

Where the browser is the platform, you might consider using custom elements to fill this role: https://html.spec.whatwg.org/multipage/custom-elements.html#...