magnet:?xt=urn:btih:a304f9666011c824120f665f9b1aba7933d4948f&xt=urn:md5:37e6efc7b71b2c6d80e1726a6e51deca&xl=193803718&dn=qt-opensource-mac-4.8.6-1.dmg&as=https://download.qt.io/archive/qt/4.8/4.8.6/qt-opensource-mac-4.8.6-1.dmg&tr=http://bt.qt-project.org:6969/announce