Dev Container
# build image
docker build -t ubuntudev21.10 .
# create container from image, and run the container
docker run --name ubuntudev21.10 -it ubuntudev /bin/bash
# start docker
docker start containername
# exec command
docker exec -it ubuntudev21.10 /bin/bash
# run GUI application
export IP=$(ifconfig en0 | grep inet | awk '$1=="inet" {print $2}')
docker run -it -e DISPLAY=$IP:0 ubuntudev --name ubuntudev /bin/bash