magnet:?xt=urn:btih:2bd27976af877065c3cfa34e20478a9d89e034c3&xt=urn:md5:90e818433d44115201b157f602622cd4&xl=2880624885&dn=qt-opensource-mac-x64-5.12.12.dmg&as=https://download.qt.io/archive/qt/5.12/5.12.12/qt-opensource-mac-x64-5.12.12.dmg&tr=http://bt.qt-project.org:6969/announce