Unable to connect to localhost Nucleus from Python standalone application

I’m trying to connect to my localhost Nucleus server installed on an Ubuntu 22.04 Workstation I’m working from. The Nucleus Server is perfectly reachable from the web browser using http://localhost:34080. Whenever I try to access assets from Nuclues in my Standalone Python app, the log is telling me that Nucleus is not accessible.

[Info] [omni.isaac.core.utils.nucleus] Check /persistent/isaac/asset_root/default setting
[Info] [omni.isaac.core.utils.nucleus] Checking path: omniverse://localhost/NVIDIA/Assets/Isaac/2023.1.1/Isaac
[Info] [omni.isaac.core.utils.nucleus] Failure: omniverse://localhost/NVIDIA/Assets/Isaac/2023.1.1/Isaac not accessible

is there anything I am missing here? I even passed my Nucleus admin credentials with:

$export OMNI_USER=
$ export OMNI_PASS=

Any help is really appreciated!