Head over to the releases page and download the latest version. After downloading, extract it to wherever you'd like, and run the executable inside. Once started, the server will show up as a tray ...
Download obs-ndi-4.13.0-x86_64-linux-gnu.deb sudo dpkg -i obs-ndi-4.13.0-x86_64-linux-gnu.deb If this does not work then try: sudo ln -s /usr/lib/x86_64-linux-gnu/obs ...