This is OneSoftNet (OSN). We're an organization that focuses on open source development. Are you interested? Email at team@onesoftnet.eu.org for more information!
Contributing - is the easiest way to get involved. You can fork one of the repositories and then start making changes. Once, you're happy with them, you can create a pull request. The project maintainers will review your changes and if everything looks OK then it will be merged.