Well, yes to both. The initial reason why I started the engine because I wanted something that could run typescript natively. For now it just does type-stripping and some transformations to run react code. For source mapping, some errors are converted, mainly syntax ones, but there are no real conversions for errors arbitrarly thrown in the engine.

The tooling, mostely no. But if people want it I don't see any issue why I should not do that.