Anonymous dashboard

Can’t get an anonymous dashboard with the pring security, have been going trough the manual, and it gives me an example with the old security method. But can’t get that working within the spring security xml etc.
Can someone help me to get this working or pointing towards any place where i would be able to find the solution.

Expected outcome:
I want a dashboard showing on a XIBO system so need a direct anonymous login on the dashboard page

OpenNMS version:

As much as I hate to say it, it’s probably far easier to do this with Helm and Grafana that it is to allow an anonymous dashboard in OpenNMS itself.