I’m in the same boat. If I had a lot more time to devote to it, and if there were several other people able to actively contribute to development, I would continue QtAOG for sure. At the moment, AOG’s development is several years beyond where QtAOG’s port was. So it will take quite a long time to catch up and port all the changes.
In the shorter term, the simplest path to running AOG on other processors and operating systems might be to use dotNet core, and port the GUI to something other than Winforms, such as the Winforms-like Avalonia toolkit. There was talk about bringing Mono’s webforms implementation (which is nearly sufficient for AOG’s needs) to dotNet core. But that’s unlikely to happen. Mono itself is no longer under development since dotNet core is officially supported, and it’s winforms implementation has languished.
It will be at least six months until I have the time and shop to work on a couple of AOG-related projects (next Winter is more likely). Trouble with farming is it takes up all my time!