Friendica Developer Guide
Here is how you can join us.
First, get yourself a working git package on the system where you will be doing development.
Create your own github account.
You may fork/clone the Friendica repository from https://github.com/friendica/friendica.git.
Follow the instructions provided here: http://help.github.com/fork-a-repo/ to create and use your own tracking fork on github
Then go to your github page and create a "Pull request" when you are ready to notify us to merge your work.
Important
Please pull in any changes from the project repository and merge them with your work before issuing a pull request. We reserve the right to reject any patch which results in a large number of merge conflicts. This is especially true in the case of language translations - where we may not be able to understand the subtle differences between conflicting versions.
Also - test your changes. Don't assume that a simple fix won't break something else. If possible get an experienced Friendica developer to review the code.