Confusion on Audacity / Recordbox / Focusrite for DJ set

Hey everyone. I am starting a new hourly DJ show on the radio (keeping it DL for now), but want to have the flexibility to pre-record from home. I am trying to figure out the connections and configurations but I am pretty confused.

I am using a DDJ-FLX4 with rekordbox on MacBook Pro. I am trying to record my setlist and voice at the same time. For my voice, I will be using my microphone, which I have directly connected to my Focusrite interface. My speakers are also connected to this Focusrite interface.

Could anyone help me figure out how to record both the music and my voice on Audacity. Is this even possible?

I would really appreciate any help, I will shoutout your username on the radio if that entices you to help me hahaha.