Service integration scripts live in a web browser engine (WebKitGtk+) and are written in JavaScript. Since the major responsibility of these scripts is to extract information from a web page and interact with it, you need a good knowledge of HTML and Document Object Model API.

Service integrations are maintained as git repositories at Github. Although it isn't strictly required, experiences with Git version control system and Github code hosting platform are very appreciated. Otherwise you can distribute your work in tar archives and we will create and maintain a Git repository for you, but it will obviously increase maintenance burden of the project.