Well, you still need docker.
$ docker build -t pcoip-client --build-arg username=$LOGNAME --build-arg uid=$(id -u) --build-arg gid=$(id -g) .
$ docker run --rm -e DISPLAY=$DISPLAY -e LOGNAME=$LOGNAME -v /home/$LOGNAME/.config/:/home/$LOGNAME/.config/ -v /tmp/.X11-unix:/tmp/.X11-unix pcoip-client
Run with docker-compose up -d