magnet:?xt=urn:btih:671a3c25baf58eb47edf5daff8f26e9e2c1fdd8c&xt=urn:md5:249aa600886042f0483827b89166ba13&xl=40&dn=5.12.8-0-202004051513qtconcurrent-documentation.7z.sha1&as=https://download.qt.io/online/qtsdkrepository/mac_x64/desktop/qt5_5128_src_doc_examples/qt.qt5.5128.doc/5.12.8-0-202004051513qtconcurrent-documentation.7z.sha1&tr=http://bt.qt-project.org:6969/announce