The OFFICIAL repository: https://github.com/xin-huang/sstar
Contributions, bug reports, and feature requests should be directed to the official repository. If you are viewing a fork, please note that it may diverge from upstream and is not maintained by the official maintainers. Please refer to the official repository for current releases, documentation, and contribution guidelines. When citing this software, cite the official repository, and use official releases for production or reproducible analyses.
The manual can be found here.