OpenPSA is under constant development and you're welcome to join in! Please see below on how to get started:
To submit patches, just fork the repository on github and send pull requests when you're done. For development-related questions, please refer to the developer mailing list.
Right now, OpenPSA's UI is fully translated into German and English, we also have quite good coverage of Finnish and some other languages, but would of course love to broaden our reach. An online translation tool is currently being developed, in the meantime, please send us translations via github or over the developer mailing list.