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That has been around for a long time. I remember it in the early 2000s.

> Decades old footguns - aaargh!

Indeed...

The tricky problem they have is wrapping it into some sort of lock could cause so many issues. Places that dont deadlock, suddenly could. Not a fun problem to solve. In practice it is usually not too bad as you are usually not changing your env vars much. But when you run into it, ugh.



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