Found this repo linked to an official article: https://www.esri.com/about/newsroom/arcuser/react-arcgis/
Looks like I'm three years too late. The error I get when running this is:
Uncaught Error: Module build failed (from ./node_modules/mini-css-extract-plugin/dist/loader.js):
ModuleBuildError: Module build failed (from ./node_modules/sass-loader/lib/loader.js):
Error: Node Sass does not yet support your current environment: OS X 64-bit with Unsupported runtime (72)
For more information on which environments are supported please see:
https://github.com/sass/node-sass/releases/tag/v4.9.4
I'm on a Macbook pro running BigSur 11 something.
Is there a more recent official vanilla React Esri Map example?