Haskell is a great language. But there are large codebases out there in C++. Porting those is often not feasible. Yet, Haskell can serve as a great inspiration

Haskell is a great language. But there are large codebases out there in C++. Porting those is often not feasible. Yet, Haskell can serve as a great inspiration of how to write clean code. C++ does not have the limitations/strictness of Haskell, but that does not mean that a programmer cannot apply the rigor of Haskell to C++ code. Blasien is meant as a way to improve software that works with XML. Big packages like LibreOffice and Calligra could benefit from it without switching to Haskell. In fact, I've not figured out yet how to bring the features of Blasien (literal XML and compile time schema validation) to Haskell.