Include the intune.nix file; that'll pull, build, etc, msedge and the rest as appropriate.
Keep in mind there are possibly some NVIDIA specific things for Edge in there and it definitely needs some cleaning.
At this time, it only works w/ Gnome (likely due to gnome-keyring bringing in the appropriate set of things). I tried to get it to work with Plasma for about 5 minutes and stopped as I was out of time.