How to set environment variables can be found in the [docs]( https://conda.io/projects/conda/en/latest/user-guide/tasks/manage-environments.html#set-env-vars).
And there also seem to be [different ways]( https://stackoverflow.com/a/62508395/991496).
V. Ehrenstein, H. Kharrazi, H. Lehmann, and C. Taylor. Tools and Technologies for Registry Interoperability, Registries for Evaluating Patient Outcomes: A User’s Guide, 3rd Edition, Addendum 2 Internet
, Agency for Healthcare Research and Quality (US), (2019)