Basically the title. There is the [`dart-sdk`](https://github.com/Homebrew/homebrew-core/blob/47063a7519d45a9817d7a3bf1feb32a0c86a2bd9/Formula/d/dart-sdk.rb) formula in homebrew-core. Why would one use formulas from this tap? I'm curious to hear from the Dart maintainers themselves.