Every developer encounters this awkward friction almost every week: You have an APK file, a configuration snippet, an invoice PDF, or a test video on your development machine, and you need to send it to your phone right now. What do most of us do? Email the file to ourselves. Send it over a Telegram "Saved Messages" chat. Upload it to Google Drive or Dropbox and wait for cloud syncing. All these methods upload your local files to external third-party cloud servers just to tra...