Local Network Resource Distribution Assistant

Problem

When several devices are already on the same LAN, the practical goal is often not “upload to the cloud and download elsewhere,” but quickly exposing a local folder or one file to another computer or phone. Manual IP entry, firewall exceptions, and port setup interrupt that flow, while routing through public services adds unnecessary network hops. This skill narrows the task to starting a short-lived sharing service that is reachable only within the current network, with QR-code discovery.

How It Works and Limits

After launch, it offers three modes: master mode for sharing a directory and exposing an access link, single-file mode for distributing one FILE, and slave mode for discovering and connecting to an existing master. The default port is 8989, and the default directory is ./qclaw_shared; --dir can target Desktop or a project directory instead. First run checks dependencies such as flask, qrcode, pillow, and werkzeug; if no GUI is available, use --no-gui and open the console URL manually. Confirm that sender and receiver are on the same LAN and that the firewall does not block the port. If the QR code does not appear, check the desktop environment first; if the port is occupied, switch to another port. It suits temporary handoff, local demos, and offline debugging, but it is not a replacement for long-lived file servers, access control, or encrypted transfer.