We recently open sourced LFortran, an interactive Fortran compiler built on top of LLVM that we have been developing for the last 1.5 years. It is a work in progress and at the link you can find what works already, what is planned and a roadmap.

Here is our motivation.

Why are almost no new scientific or engineering software projects started in Fortran?

Usually (in our neck of the woods) C++ is chosen instead. The following are the most cited reasons for such a choice: