Busicom 141 PF calculator (1971). This was a product built on the Intel 4004 processor. It was not programmed using Intel 4004 machine langauge directly, but using a more powerful machine language for which the 4004 ran an intepreter included in the image.

The Python pickle format is a bytecode [1], although not a Turing-complete one, I think.

[1] https://formats.kaitai.io/python_pickle/

Quake had it’s own vm also

Another World (Out of this world) game had its own bytecode [1]

[1] https://github.com/fabiensanglard/Another-World-Bytecode-Int...

RarVM was used in a previous version of the format, newest RAR has removed it, and RarV5 doesn't have a VM.

This list is entirely incomplete without mentioning Java Card.

There is a tiny Java Bytecode VM in an insanely large list of places, you can find some of them here:

https://github.com/crocs-muni/javacard-curated-list https://en.wikipedia.org/wiki/Java_Card

TikTok shipping XOR cipher'd bytecode & interp is right up there: https://news.ycombinator.com/item?id=34109771

yt-dlp's jsinterp.py

https://jxself.org/compiling-the-trap.shtml

I've got subleq+eforth (https://github.com/howerj/muxleq) running in JS which is dead simple to do. No input but I could output ASCII mapping values to an array.

https://esolangs.org/wiki/Subleq

So, yes. yt-dlp runs propietary Youtube JS code defying the original purpose.

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