Since you’re the only other person in this thread to mention it, I’m surprised the industry has been sleeping so hard on QuickJS as a scripting language runtime.

I think the lack of batteries-included stdlib is probably the biggest holdup, but JS can be much nicer than python for anything that can be decomposed into map/reduce/filter string munging.

I agree. For me, the major stumbling block is what interpreters ship with your typical Linux distro. Python and BASH are usually just... there. Everything else just takes more steps.