Hi Tom,
Here’s the schema/EER diagram. I used pgadmin4 tool to generate it. It’s a fully fledged RDMS management tool and if you want to play with it I can create a user account for you. Please DM me.
I have a working EHRbase instance on AWS and pgadmin4 connected.
I wrote a comprehensive guide to install and configure EHRbase - HERE
Enjoy!
@thomas.beale