Install Dependencies on Manjaro Linux (Arch Linux)

Hello, I’m trying to get Soundjack running on my Manjaro machine. I can startup the soundjack application, but when opening the stage tab the application crahes and so does the stage webpage afterwards.

I thought I was missing some required packages, so I installed everything there is from the qt5-multimedia package (in hopes it would contain, what is included in the call from the download side: sudo apt install libqt5multimedia5 libqt5multimediawidgets5 libqt5websockets5-dev libqt5x11extras5-dev).

Apparantly that wasn’t it or it wasn’t sufficient. Where can I get the required packages from, as the pamac package manager does not contain the suggestes packages from the website.

Thanks! Paul