An example simon says game written in preact.
Uses a simple backend hosted on glitch to store leaderboards https://glitch.com/~simon-says-api
https://danyo1399.github.io/simon-says/
https://www.npmjs.com/package/@danyo1399/simon-says
https://unpkg.com/@danyo1399/[email protected]/dist/index.umd.js
https://stackblitz.com/edit/vue-p8i6oe?file=src/App.vue
https://stackblitz.com/edit/angular-ivy-kbbokw?file=src%2Fapp%2Fapp.component.ts