Before run YourDirectorAI, it is highly suggested install first OBS Websockets and OBS NDI, tgusi guide is for OBS version 27.X
If OBS Websockets is correctly installed you will see OBS Websocket available as this:
Open Websocket Server Settings and select Enable WebSocket server checkbox.
If it is installed correctly you will see NDI in the top menu and NDI and as a filter. NDI as a Filter is what we use, just add a filter on the Video Capture Source you want as a tracker source for YourDirectorAI , remember there should be a scene with you framed at center.
Right click on Video Capture Source, then select Filters.
Right click on Effect Filters and select Dedicated NDI output.
Now after add NDI out, customize the name, something OBS or any name you want. After setup the name close and open again OBS in order the change by applied to NDI stream on the network.