Yeah, kind of my intent. IMO, the real job of an engineer is selecting compromises to stay within a budget, be it a financial budget, safety etc. If hypothetic

Yeah, kind of my intent. IMO, the real job of an engineer is selecting compromises to stay within a budget, be it a financial budget, safety etc. If hypothetically you have a legitimate reason to write a Javascript OS kernel then go for it. I'm struggling to imagine what those might be, but hey if you can justify it after weighing other options seriously then that's good engineering. Fun and educational value are different though. Those are ends unto themselves and not just a tool to achieve a goal. I think pretty much anything goes there.