X11 + PulseAudio on WSL2

How to get X11 Linux GUI programs to run on Windows Subsystem for Linux 2 with sound:

add these lines to the very bottom of ~/.bashrc :

# Export X11 to VcxSrv or whatever Windows X Server [REQUIREMENT: RUN VCXSRV
# with the -ac program switch and make sure it's running!]:
export WSL_HOST=$(dig +noall +answer $(hostname -s) | tail -1 | cut -f 6)
export DISPLAY=$WSL_HOST:0.0

# Export PulseAudio to Windows [REQUIREMENT: install PulseAudio via Chocolatey
# and install as service with nssm!]:
export PULSE_SERVER=$(dig +noall +answer $(hostname -s) | tail -1 | cut -f 6)