Retrograde
A Python library for hosting orbits ("webrings").
Orbits hosted using Retrograde in this capsule
Announcement of Retrograde and the Omloppsbanan Orbit
Idea
This project was inspired by Molniya (the library used by LEO, the first orbit) and Antenna (a "reverse feed aggregator"). Its main diffence from Molniya that it does not rely on finding backlinks using a search engine. Instead it accepts URL submissions (like Antenna). This allows URLs to be added and deleted instantly, instead of waiting days for the seatch engine index of backlinks to update.
Source