Here are the slides of my presentation.
Few notes on what I saw
Good target for Transonic and Pythran: https://github.com/ogrisel/pygbm
For Pythran, we would need more OOP support.
Good Cython and Numba examples for Transonic:
We need something like a NumFocus Europe.
For Cython, we have to fully work with fused types
For Cython, we need to be able to specify if an array will be used as a
Transonic should soon support
A = Array[int, "1d", "memview"]
We have to work more on type annotation of Numpy code, see numpy-stub.