Blank database or how to clean DEMO data

After installing metasfresh the database is populated with some DEMO data.
Now, after some digging - I found a sql script to “clean-up” the database. Somewhat it cleans it up, but it is messy and some Xreferences won’t work.
Is is possible to get a “clean” database, with all tables clean (except user-admin) ?

I would also like to know if it’s possible to get a clean database.
Or how to install one by using the Docker method.

Currently the demo products cannot be deleted from within the WebUI on a fresh installation following the docker installation guide of the website.
I’m not sure if this is due to all the demo products having cross-references or if it’s a bug etc.

The clutter due to the amount of demo products is very distracting and makes it hard to learn the system using our own products and processes.