Sadly, CircularGauge QML Type | Qt Quick Extras 5.15.8 ist not available (although as part of qt since 5.5).
Edit: I use canvas to draw. There are a bunch of html canvas gauges out there and the api, iirc, is the same for qml’s canvas.
Edit 2: And now I’m down the rabbit hole: Pure JavaScript and HTML5 canvas Gauge – CanvGauge has a number of examples (altimeter, etc) right up your alley.