Who was doing the soak test of the party cat at the space? Cool idea!
I've found the ESP on my NodeMCU decently stable, but I've found sometimes coming home I wasn't able to form a TCP connection to it until I rebooted. This was pretty unscientific tho...
So what I'm saying is after the soak test of running the LED pattern, I'd suggest also running a wifi program and seeing how it does long term.
@lukecyca Any experience with long running cats?