To use remote desktop you will need to be connected to your house wifi network on the NUC unless you can create an access point. You house WIFI is more than likely strong enough. Install the remote desktop assistant in the NUC and do the settings. Load it to start on power up. In your house PC, laptop or tablet download the Microsoft RDP app from the store. You will connect to NUC using the name and password shown in the assistant.
RDP works very well as long as you have a network to work it on. If you are able to create an access point (hotspot) on the NUC, you do not need a network as the access point is a virtual wifi network. In that scenario you can connect PC wfi, laptop wifi or a tablet to the hotspot and use Microsoft RDP app even in remote locations with no wifi. If no hotspot, you can add a usb router to create the wifi network. Many ways to make everything work. I use a PI 4 with Astroberry, PI hotspot with no problem even inside the house at 5g. Also it works the same in remote site. The reason I went with PI is the extremely low power requirement.