NewTek’s NDITM video protocol is now supported in wysiwyg R41. (Website: https://www.newtek.com/ndi/ )
Setting up an NDITM source is very easy. Create a new video source, as you usually do, and approximately halfway down the dialog, look for “NDI Source” option. Once selected, the drop-down becomes active, and it will display all NDI streams discovered on the network, as shown with the VLC Player listed in the image below.
NewTek has a free suite of basic NDI tools, https://www.newtek.com/ndi/tools/, including a VLC plugin and a Test Pattern application, which can be useful for testing, or you can use a Media Server that has an NDI output option.