@PeterB posted:@Jerryc86 I feel as if I drowned in *all* of the videos and stuff out there the second I went looking. I have no shortage of resources to explore. What I really wanted to know (which I think @Mellow Hudson Mike answered) was, 'given what your collective experience has taught you, what is a sane and manageable route to pursue?')
For my part, the Legacy product seems the most manageable approach for me, but I could be mistaken. Twelve years on the networking team of a federal agency, paired with five years of smart home construction and maintenance, gives me a modicum of confidence, but what I'm reading about MTH's DCS product doesn't seem ideal for my environment.
If you don't mind using an MTH remote/app for your MTH engines and a Lionel remote/app for your Lionel engines, running both systems isn't complicated as noted by @gunrunnerjohn a few posts back - literally one additional wire.