Since it's presented as a "tiny" runtime, I'd like a size comparaison between this and Node in the readme. Same thing with the use cases (learning projects or "just for fun" are very valid use cases!).
My Sciter engine that includes as QuickJS as HTML/CSS engines is about 6 Mb.
My port of QuickJS [1] that also includes persistent storage (think of MongoDB built into JS) is 736 Kb on Windows.