Henri Gourverst (UIB creator) set up anew powerful tool : DelphiOnRails
The powerfull association of DOR and Firebird help me to build a nice new AppServer.
The simplicity of coding with DOR help me to focus on database structure and efficient queries.
This AppServer will be soon deployed in various location in France, and with the low level of maintenance need, the light network protocol used it will be deployed on large and small business units without trouble.
The clients software will not use Lua (choice of the vendor), instead there are two clients one in C# and another in PHP integrated to a webserver.
So thanks again Henri, long live to DOR.