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From https://github.com/babel/babel/graphs/contributors https://github.com/babel/babel/graphs/contributors it looks that Henry did work on the project heavily a
by fireattack 5y ago
From https://github.com/babel/babel/graphs/contributors https://github.com/babel/babel/graphs/contributors it looks that Henry did work on the project heavily after the creator left/went inactive, but stopped being active himself after 2019.
There probably is more, but not going to speculate.