pironman5 max pro, install.py fails

[tceska-byte]

After downloading from Github, I run:
sudo python3 install.py

it fails at line
File "/home/pi/pironman5/variants/init.py, line 119 in
NAME = VARIENT.NAME
AtrributeError: 'NoneType' object has no attribute 'NAME'

Looks like typos somewhere. Can this be corrected please?
Thanks.

[tceska-byte]

Discovered this needs to cloned with a -b pro-max switch and --depth 1
Software link in the leaflet (https://pironman5.rftd.io) doesn't exist