PiShrink dockerized
See https://github.com/Drewsif/PiShrink
Usage
In the directory containing <your-image>.img:
bash:
docker run --rm --privileged=true -v `pwd`:/workdir turee/pishrink-docker pishrink <your-image>.img
fish:
docker run --rm --privileged=true -v (pwd):/workdir turee/pishrink-docker pishrink <your-image>.img
Enjoy smaller Raspbian image.