Hi! It says this is standalone, but I could not find in the description how to run it without AzerPug Core.

Try the slash command: /azp pcl or /azp check. Both should work.
I am sorry I must have forgotten to add that to the CF Description. I will do that tomorrow when I wake up ^^
(If I do not forget........)

Added to the description now as well, closing issue.
Thanx for reporting this ^^