I am new to POL and installed the flatpak on EndlessOS. I wanted to use it for "BlackBox Component Builder", but I am lost since I have no idea how to use POL 5 and how to install an application with POL 5. I tried to use the zip (which I used successfully under Debian (Q4OS) and Wine) and theMSI-installer, but I hhave no idea how to call it after successfully using Local Installer for the zip and Online Installer for the MSI. I am lost.
How do I use POL 5 for installing some application, which is known to run under Wine?