document for POC comparisons :
https://docs.google.com/document/d/1hNvBjRPaRsQwz1aic9QRIaHkgtxgOrYTFPOfvpVKuV0/edit?usp=sharing
grid for functionnalities :
https://docs.google.com/spreadsheets/d/18-iEKM2C9yKzDLcp678fl5xLWN0uktlmBI4Rxl02ozA/edit?usp=sharing