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ecmascript decorators might actually ship! firefox is starting their impl. babel 7.19 revamped & is spec compliant again.
https://github.com/tc39/proposal-decorators/issues/476
main use case i have isnt fancy, not even supposed to be required, a small webcomponent library from github,
https://github.com/github/catalyst
oops that was babel 7.17. they have a great post too.
https://babeljs.io/blog/2022/02/02/7.17.0
babel releases are great logs of how to use things that've happened.