The game of minesweeper as a web app with super high load performance, even on a Moto G4 with Slow 3G: https://webpagetest.org/result/200404_Z4_f836b0bd3220f1c0f7a4122491a675ef/
git clone https://github.com/Westbrook/minesweeper.git
cd minesweeper
yarn && yarn start
$ yarn build
This will create builds of your application in the dist/
directory, optimized to be served in production. You can then serve the built versions using your favorite HTTP server, if you've got the Polymer CLI installed globally, you can access it to run the built assets via the following:
$ polymer serve dist
$ yarn test