Thanks for contributing to Growstuff! We have different contribution guidelines depending on whether your change is a small one (a one-line bugfix or similar) or a larger one.
Send us a pull request! We will get one of our pairs of coders to review it.
If you are interested in becoming a more regular contributor or working on larger features, please see the Growstuff wiki for more information.
Growstuff does pair programming (two coders working together) for all new features and other significant changes. This means that if you submit a pull request and weren't working in a pair, we're unlikely to merge it into the project as-is.
If you would like to work on any larger change, we would appreciate it if you would get in touch with us, preferably via our mailing list, and talk to us about it first. We'll try and hook you up with a partner so you can work as a pair, either in person or remotely depending on where you are. The Growstuff wiki has lots more information on our dev process, to get you started if you would like to join us.
If you submit a larger change without working in a pair, we will treat your work as an experimental "spike" and get one of our pairs of programmers to look over it and maybe use what you've done as the basis for re-implementing it using our processes. We'd much rather work with you, so please talk to us first!