A nifty Android feature - https://developer.chrome.com/multidevice/android/installtohomescreen explains how to do it.
Not urgent, but I'd like to see this integrated in the final version.
gets my :+1: from me.
They made this even easier now :)
https://developers.google.com/web/fundamentals/engage-and-retain/web-app-manifest/
[This issue needs the mobile tag]
Most helpful comment
https://github.com/askvortsov1/flarum-pwa :D