Thank you so much!
Apple Mac Mini M1 OBS Studio 28.0.3 & NDI 4.9.1 TEST
Foremost, thanks again! It is working for me :)
A little add-on tip which might be not as obvious for some (like me) haha
When you downloaded NDI Tools and performed the terminal command, you need to launch NDI Virtual Input and select your source there.
After this step, you will see your fed source in OBS when you select NDI Video under Video Capture Device.
Hope this might help some who weren't aware of this.
Have a nice remaining Sunday all and happy streaming