We didn't invent anything, we simply take our mission at heart. No office in city, all teams live in the villages. We like a lot the words of Lao Tseu, Chinese philosopher (700 AC):

Go toward people
Live with them
Learn from them
Like them!
Begin with what they know

Build with what they have to start with
And, when it is finished,
They will be delighted
And will say: We made it ourselves!

We were skeptical when the villagers of Long My said that their priority was the bridges and the concrete paths: to sell their harvests at better price, for the children to go to school without risking to fall of the «monkey bridge »... We followed them, they covered 75% of the expenses! They say proudly: " we made it."