Tutorial about the SDK ?

[6francs]

Hello everybody !
Congratulations, I discovered UBNT last month and the products are very nice, I have one Nanostation 2 and one Bullet 2.
I'd like to use the SDK to customized the products (we work in industrial environments).
It is not very clear for a beginner, can you tell me where I can found a tutorial explaining how install, compil, etc...

Thanks for your help