Dang. Still use my 2nd AirPort Express for wifi and AirPlay. It was inevitable but still unfortunate to see.
Though I reckon it can still be administrated through an older version of macOS running on a VM, so there will always be that.
Really wish Apple would make a new AirPort - there was something insanely reliable and easy to use about them. The fact that mine has been running 24/7 for the better part of a decade and still works great really says something. The same router with modern WiFi speeds would be awesome.