Quenlig is a standalone system allowing the creation of interactive Web tutorials and questionnaires. The system analyzes the student textual answer, so it is perfectly adapted to create courses and practical works on Unix, Python, SQL, etc.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.