Shadow Guardian: Decentralized Offline SOS Mesh Network
A privacy-first safety tool using Bluetooth Low Energy (BLE) mesh networking to relay emergency SOS signals in areas without internet or cellular connectivity.
Most traditional safety apps rely on active internet or GPS-to-server connections. In "dead zones" like elevators, basements, or remote areas, these apps become useless. Current proprietary solutions also compromise user privacy by tracking data on central servers.
The Innovation: Shadow Guardian solves this by turning every user's phone into a decentralized node. Using Bluetooth Low Energy (BLE), we implement a mesh network protocol where an SOS distress signal can "hop" from one device to another. When the signal eventually reaches a device with an active internet connection, it automatically relays the sender's last known location and emergency details to their contacts.
Technical Goals for March: Mesh Protocol: Implement a basic store-and-forward mesh mechanism using BLE.
On-Device Security: Encrypt distress signals so only emergency contacts can decrypt the user's identity.
Local-First Architecture: Ensure zero dependence on closed-source APIs or centralized cloud infrastructure.
FOSS Impact: This project eliminates the need for a central corporate authority to manage safety data. It empowers communities to protect one another through a transparent, open-source peer-to-peer network.