npm install -g bs-platform
bsb -init my-first-app -theme basic-reason
And then run it as usual:
npm run start
You can also build in watch mode:
npm run watch
Alternatively, to start a ReasonReact app, try bsb -init my-react-app -theme react.
bsb -init my-react-app -theme react
Head over to Editor Setup to get the Reason plugin for your favorite editor!