magnet:?xt=urn:btih:c260ef77dab48779275b4fb3d41fc7799a5f1c7c&xt=urn:md5:57bbcb6b25340c50ff55f8b3b8fba2cc&xl=251904&dn=OpenGLTutorial.qch&as=https://82d1be41983ff3ab1c2f0aa34bf9ba0a.kxcecsi.workers.dev/learning/developerguides/qtopengltutorial/OpenGLTutorial.qch&tr=http://bt.qt-project.org:6969/announce