A custom <mapml-viewer> and <layer-> element suite
Map Markup Language is hypertext for Web maps, like HTML is hypertext for Web pages https://maps4html.org/MapML-Specification/spec/
Proposed spec for dynamic slippy maps in HTML: https://maps4html.github.io/HTML-Map-Element/spec/
A public repository to develop the program for a workshop to be held online, at selected times over two weeks, September 21-October 2nd 2020