So, adding to this thread which helped me learn.
To really spell out the typical workflow (for newbies like me), you:
- clone ublue-os/boxkit
- edit ( Containerfile / extra_packages / … ) locally
- run
podman image build -t myimage .to create the image locally - create a toolbox with
toolbox create -i myimage - enter it with
toolbox enter myimage
Once happy with the result, you can commit your changes to your (forked) repo.