What JS runtimes exist?

Can you provide JS runtimes that you know? I found the most popular ones, but also interesting to read about less popular or new ones, even if they are still in beta or alfa. Also interesting to know about nontrivial things like Moddable (https://www.moddable.com/) that lets you use JS in embedded.

Edge runtimes also count, I found a list of WinterCG compatible (https://runtime-keys.proposal.wintercg.org/#keys), but I also want to know about noncompatible options.
Tools to create open IoT products using standard JavaScript on low cost microcontrollers.
Moddable
Solution
Gist
A list of JavaScript engines, runtimes, interpreters - javascript_engines_and_runtimes.md
A list of JavaScript engines, runtimes, interpreters
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