So, when you execute commands within a notebook, it's executed within that Databricks context, and you should still have access to the /Workspace and other Databricks-specific directories.

This does not appear to be true. When I try to open any path in /Workspace from a python notebook, on a cluster running, for example, the image projectglow/databricks-glow:10.4, I get "No such file or directory" errors.