Hi,
Just tried to set this up on my test vero4k. Slight change in instructions, so please revert any previous changes and try this:
sudo update-alternatives --set iptables /usr/sbin/iptables-legacy
Then follow the instructions for installing docker from here:
Then finish the unifi installation with:
sudo usermod -aG docker $USER
sudo apt install docker-compose
sudo reboot 0
mkdir unifi && cd unifi
curl -O https://raw.githubusercontent.com/ryansch/docker-unifi-rpi/master/docker-compose.yml
sudo docker-compose up -d
Thanks Tom.