Ok, one step closer!
You need to directly point it to the config.yaml BUT it has to be in a subfolder!
Putting it in "configDir" solved this for me.
so the full path now is: "/mnt/user/appdata/LiteLLM/configDir/config.yaml" see screenshot.
Only now I am stuck with getting the config right ðĪŠ
This unraid template is the least straight forward. At least for me.