To install Qargo as a desktop app:
In Chrome/Edge, open app.qargo.com, click the browser menu (⋮ or ...), look for “Install Qargo TMS” or "Add to desktop" option - this may be listed under "Cast, save and share" or "More tools" - this can change per browser:
This will create a shortcut on your desktop and open Qargo in a separate window, similar to an app.
