Microsoft Teams

[braco]

Have you thought about including support for microsoft teams as a compilation target? That would make this package very useful for an entirely new market, and it seems like all the hard work with jsx is already done.

[yhatt]

Adaptive Cards, the similar technology used in Microsoft Teams, has a fundamentally different design from Slack Block Kit. Supporting both within the same library isn't something I'd like to do, from a maintenance burden perspective.

Besides, I have not used Microsoft Teams myself, so the support wouldn't be sufficient.

There already exists a JSX library designed for Adaptive Cards, so you can try to use JSX based on that (Though, it seems to be outdated).
https://github.com/justinwilaby/babel-plugin-jsx-adaptive-cards