Hi there!

Nice work on this. I'm coming to Blazor from VueJS which has reactivity like this built in, so investigating maybe doing something similar in blazor - and this looks like it is shaping up to something quite close.

I built the project in latest .NET 5 but the observable counter seems not to work as intended: the entire component re-renders (e.g. gets highlighted) instead of just the observable. Is some change needed to PureComponent perhaps?

Secondly, a question on whether tracking would work for nested observables, e.g.

<Observable>
@if (observableBool.Value)
{
  @observableString.Value
}
</Observable>

If observableBool is initially false, but subsequently becomes true, does <Observable> update when observableString changes?

I was going to test this myself but the behaviour doesn't seem to be working at the moment, as per above.

Cheers