Minimalist Desktop P2P File-Sharing UI

I’m putting the finishing touches on a peer-to-peer infrastructure built for fast, secure file sharing and now need a polished desktop interface to match. The entire product lives on the desktop, so every screen you design must feel at home on Windows, macOS and Linux alike... (Budget: $50 - $60 USD, Jobs: Figma, FileMaker, Graphic Design, Logo Design, Sketch, UI / User Interface, User Interface / IA, Web Design, Windows Desktop)