Debian 12 host crashes when starting "Dive into Ansible" compose project that runs Systemd in containers

To my knowledge, I am not running Systemd in a container, as I haven’t spun one a container up successfully; the course gives six Linux container images to run, which takes up a the remainder of space on my /var partition. Currently, I am researching on how to to change the Docker Storage location, as I have over 60GB free on my /home partition - but the online documentation doesn’t touch upon the issues of installing Docker CE and Docker Compose (the latter seems to remove features in the Docker CE install that seem to mess with the functionality).

If anyone has some really current documentation on how to do this, I would appreciate that.