At the moment, I haven’t built or tested the application on Linux yet. Cross-platform support is planned for future versions. When I start working on Linux builds, I will review and clean up Windows-specific parts and unnecessary {$IFDEF} blocks.
:'( :'( :'( :'(
When you do get around to Linux (Mac is easy) please have a look at my app, mentioned below. While what you have hopefully done will work with sensible Desktops like Mate, xfce or Cinnamon unfortunately, the most common default Desktop, Gnome, requires heroic efforts to get the System Tray working. Sad but true.
So, start testing with, my recommendation, Mate, to get your confidence up. Then try Gnome and KDE.

Davo