09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

Syncthing accomplishes both local and Internet transfers and doesn’t need a third party server (if you’re not doing NAT traversal). I don’t think you can send individual files through it’s interface. But you can share a directory and any files you add (or edit) will sync via P2P to other devices.