My ultimate solution was going with WeatherLink Live. The result wasn't as elegant as what I could do with the WL software, but it kept the website alive, and visitors didn't seem to care. It was easy to use and simple to implement. The iOS/iPadOS apps are very nice, and in the end would have been much cheaper to implement. I have also changed my original premise, that Davis has failed Mac users.
First, I am neither an Apple nor a Microsoft groupie. All I want is to just sit down and get my stuff done. After 8 months struggling with the Mac mini, I eagerly and joyfully returned to Windows. For me, everything seemed more difficult on the Mac, more steps, more menus, bizarre keystroke combos, and lots of Googling. Since I use iPads and an iPhone, I thought switching to a Mac would allow everything to work together. That turned out to be not true at all. Compared to a Logitech, the Magic Keyboard was the worst I've ever used. The Magic Mouse was really a track pad trying to be a mouse. It did neither job very well. Both were exploitatively overpriced, and had the habit of going dead without warning and needing recharging. I looked at alternatives, but reviews indicated that after a MacOS update or two, Apple would boot them off. Nice company.
After this experience, it's not Davis who has failed Mac users, it's Apple who has failed Davis users.
Thanks to everyone for your interest.