zlacker

It's perfectly suitable and it looks like one of the better out-of-the box solutions out there that respect user privacy. If I don't have any SBCs and just want something that works without fiddling, I'd likely go for Hubitat too.

That said if you're up for fiddling, something like https://www.amazon.ca/Waveshare-VisionFive2-Processor-Integr... will provide much more oopmh (and it's RISC-V) with 4GB ram and m2 slot, at $100 CAD, with mainline kernel support (so any USB devices will just work). Grab a zigbee USB + SBC like that, and you'd be able to run much more on your hub that just a gateway for your devices.