Hi Alex,
neither nor, I have a commercial licence and installed Qt 5.8.0 using
qt-unified-mac-x64-2.0.5-online.dmg
In order to install Felgo I used the MaintenanceTool.app provided in that installation and followed the instructions provided on your site
https://felgo.com/doc/vplay-installation/#add-v-play-to-existing-qt-installation
As mentioned in my other post I only succeeded installing Felgo after entering my username and password in the settings dialog.
Other trials sooner or later lead to crashes of the maintenance tool. Connection tests (having entered username and password in the popup dialog) ended with timeouts.
Best regards, HG