One of the most compelling aspects of react-native is the rich open source ecosystem of native extensions. We should make it as easy as possible for developers to write and publish third party native extensions (i.e., view managers and native modules) for React Native. This tooling / documentation should cover:

1. Recommended approach for publishing native code (i.e., as source code or binary)
2. How / where to publish native code and associated JavaScript? (likely NPM, but any additional source for native code?)
3. CLI or .vsix to generate templates / scaffolding for native extensions (see react-native-create-library to see an example of this for the C# repo).