Just one note. If you ever plan to contribute by uploading to github, you shouldn't edit the buildOpenEtG file, since that weill overwrite the windows file once I download your updates. Better would be to copy it and name the new version buildOpenEtGMac or something.
ah thankyou! I forgot to mention that in the tutorial.
I actually copied mine and renamed the modified version as buildOpenEtG.osx.bat
I have updated the instruction post accordingly.
Once others start developing, it may be a good idea to have separate branches for the various areas of development.
E.g. maybe have a card dev branch, a UI branch, a quest branch etc.
That way, the master branch can remain "clean" and branches only get merged in once everything is tested and working properly.
For those interested, here is a tutorial page for using git (where I learned to use it):
http://schacon.github.io/git/gittutorial.htmllastly, gitk can provide a nice GUI for git. I believe it gets installed when you install git itself using the installer package.
If not, you can always grab a copy using apt-get or macports / homebrew / fink.
Its not as shiny as some of the nice GUIs out there, but its pretty stable.