From ALT Linux Wiki
Sisyphus is a open project targeting the development and maintenance of free and open-source software repository, suitable as a basis for distributions and solutions. Sisyphus is developed by the ALT Linux Team.
Sisyphus consists of
- software repository (Sisyphus repository), including infrastructure (git.alt). Web interface is available at http://sisyphus.ru/ (Russian) and http://sisyphus.ru/en/ (English).
- packages building and testing tools (hasher, gear, sisyphus_check, qa_robot, repocop etc)
- repository integrity checking and management tools (apt)
- solution-creating tools (mkimage, Alterator, Installer).
Sisyphus is available for x86 and x86-64 architectures, ports to ARM and PowerPC are underway.
More conservative repositories based on Sisyphus are stable branches created on a timely basis.