Consider using the docker-compose environment in core

[kostajh]

You could potentially use the docker-compose environment in core (which defaults to SQLite as the DB backend) for some of this. You'd need to create docker-compose.override.yml files for each patch demo directory that specify ports: 8080 and then ask docker which port was assigned, so you can report that back to the user.

[MatmaRex]

I really don't want huge dependencies I don't understand, and I don't really have the time to try to understand Docker.