A quick guide on how to setup X11 forwarding on macOS when using docker containers requiring a DISPLAY. Works on both Intel and M1 macs!
This guide was tested on:
- macOS Catalina 10.15.4
 - docker desktop 2.2.0.5 (43884) - stable release
 - XQuartz 2.7.11 (xorg-server 1.18.4)
 - Macbook Pro (Intel)