[xwiki-devs] help: How can I build my project on Xwiki?

I have read most of the document offered by thie Xwiki site,but I still don't know how to build my project .If I want to write my own projects completely ,what do I need at least? I am sorry that Englist is not my native language ,I hope I have deliver what I want to say to you . A suggest: Download the source is really difficult for a new comer,can we sugges a convient way ? BEST WISHES FOR YOU !