sound volume – Need to stream and listen to streamed audio on my Macbook Air

I’m trying to stream audio on Streamlabs OBS for Mac, and I’m having trouble listening to the audio I’m streaming.

I installed iShow Capture and Soundflower (apps). Both these apps take input and output, but the streamlabs OBS doesn’t allow audio output when I connect any of the installed apps for both input and output. I’ve tried lots of toggling with all the midi controller input and outputs but the Streamlabs won’t allow me to listen to the audio while I’m streaming directly to it’s audio source.

Any suggestions on to how to connect the input to these apps, and the output to my default system audio output? Maybe a separate audio streaming software or an hardware could help me out to connect the apps input to my output audio (headphones/speakers)