extracting username from Community Hub

Hi,

I am building a workflow where i would need to extract the username (only logged in user can run on specific Teams Hub)

I would like to extract the username who is running it.

-already tried with the system extractor node, it only returned knime.

-also tried to extract the knime.execution.user variable with a java snippet, but it seems unavailable (probs changed something or does not have permissions in Community Hub Teams.)

Is there any way to get the username who started the data app/execution?

Thank you in advance