2021
https://blog.theodo.com/2021/10/intro-to-elm-for-react-devs/
2017
https://www.imaginarycloud.com/blog/elm-javascript-reinvented-1-overview/
    ! simple and clear
https://www.toptal.com/front-end/getting-started-elm-language
    https://github.com/vukdjapic/elm-web-example