Nice I guess, but the missing 20% makes it 80% useless in real world use cases, as in I expect this to replace approximately 0 build pipelines in TS projects.
Builders will be there as long as people do programming. But it's the first step to move to better builders. Or to standard one?
Also it helps to start with typescript faster and easier, and to make the learning curve smoother and maintaining less complex for all developers on all platforms