Well, the problem is that whenever I try to use any of this magical features it usually turns out that it either cannot do this one tiny detail which I desperat

Well, the problem is that whenever I try to use any of this magical features it usually turns out that it either cannot do this one tiny detail which I desperately need, make me rewrite huge part of the code to do minor change or is a computational bottleneck because my use case was apparently not in use cases used to develop it.