Customizing environments - first step needed

Hallo everyone,

I am lost on how I should set new environments up in Datalore Enterprise. Can someone explain me how to set the Python 3.10 environment up as in the example Customize or update environment | Datalore Documentation ?

Should put the code into a new dockerfile and build the image? Or is the code snippet provided in the documentation meant to be part of another file?

Thank you in advance for your help!