This article deserves to be the basis of a Wikipedia page. It is so well written and full of references. Congratulations to the author.

Thank you very much, really appreciate it! There's a respectable article on engines (https://en.wikipedia.org/wiki/List_of_JavaScript_engines), but indeed, no article on runtimes. I did feel that they were under-discussed compared to engines, though, with most analysis focusing on browsers and Node-alikes, so wanted to add something to the literature.