Lambda functions
The app also comes in a serverless flavours (lambda functions), which you can simply deploy to Netlify or Vercel (Zeit) Now.
This option is best suited for production environments since your WordPress instance needs to be publicly accessible from the internet. However you can use this setup with tools like
ngrok
which can expose your development instances publicly on the internet.
Netlify
or you can clone the repo and deploy manually.
Vercel (Zeit) Now
or you can clone the repo and deploy manually.