Can I add a custom UI tab

We have a script monitoring server disk usage. It outputs html.
Is it possible to output that into a tab within the prefect server UI?
Having everything in one place would be nice

Have you checked out Artifacts? They might help you do what you want.

Also, you could considered using events? You could emit a custom event that contains server resource usage. You could use the prefect-shell library to get the result of a shell command, if needed.

Ah, that should work.