To offer a good range of hard- and software:

Windows 10 or Linux (mostly Debian)
Intel i5-4570
8GB DDR3
AMD RX 570
Firefox 58, Opera 50

MacOS 10.13 High Sierra
Intel P8600
8GB DDR3
Nvidia 320M
Firefox 58, Safari

Android 6
Snapdragon 810
3GB RAM

Would like to participate in the alpha phase if possible.