Example to demonstrate Custom Runtime in QML Live Build and install QML Live: Get the source code from https://github.com/qtproject/qt-apps-qmllive cd qt-apps-qmllive && mkdir build && cd build qmake .. && make make install Use Custom Runtime Build and run customruntime.pro either from the command line or Qt Creator Once the customruntime executable is running, run the bench tool from QML Live Click "Open Workspace" in bench and select the source dir for customruntime (this project) Add a host in bench by going to Preferences (localhost:10234) The host should show Online, hit the Publish button and it should reload Any changes made to main.qml (or other QML files) will automatically reload if bench is running