HONG KONG, July 6 (Reuters) - China has released its first open-source desktop operating system, named OpenKylin, state media said, as the country steps up its effort to cut reliance on US technology. The Linux-based operating system released on Wednesday was built by a community of about 4,000 developers, and is now used in China's space programs and many organisations in industries such as finance and energy, they added. Reporting by Josh Ye; Editing by Clarence Fernandez Our Standards: The Thomson Reuters Trust Principles.