@kubouch @fdncred

Hm, now it's broken for me again... Is this operating system dependent or something?

After your revert, conda activate <env> gives me an error while activate <env> seems to activate conda. (Whereas before the revert, it worked fine)

My import statement in my env.nu file is simply

use $"($SYSCONFIG)/nu_scripts/modules/virtual_environments/nu_conda_2/conda.nu" *

Am I doing something wrong?

I'm on macOS in case it's relevant at all.

Drop the *. You're doing an equivalent of from conda.nu import * in Python. See also https://www.nushell.sh/book/modules.html.