Take part in Acceleo !
Report bugs

You often use Acceleo and sometimes meet bugs, you would like Acceleo to provide the
killer feature you just imagined, do not hesitate to inform the development team
using the
bug-tracker on ObjectWeb
Help on the forum

The web forum allows people having troubles to ask their questions. Help those doing their first steps in using Acceleo and do not hesitate to interact with the development team through this channel.
Testify

You're using Acceleo or you used it in a personal or professional project and would like to share your experience : write a testimonial describing how you used it, what Acceleo brought and what limits appeared. Send us your testimonial and we will publish it in the testimonials section.
Write a tutorial or an article

Acceleo already has a good documentation, but the more documentation
you have the better you are ! If you would like to write an article or a
tutorial explaining some kind of special use or trick with Acceleo,
we would gladly publish it within the documentation
section
Take part in the modules repository

You are no more a rookie using Acceleo, you wrote a generator module once or you took part in writing one, do not hesitate to join the repository team and publish your module in an open-source license.
Implement new features

The Acceleo source code is available, download it, change it, enhance it or bring a nifty new feature then talk about it on the development mailing-list in order to merge your work with the current trunk.
If you're planning to discover Acceleo source code the soft way, start coding the following junior jobs :