Yes โ this is technically possible.
In situations like wars or Internet outages, devices can communicate directly with each other without relying on the global Internet.
๐น Mesh Networks
Devices connect directly to one another, as seen in projects like Meshtastic and goTenna Mesh.
๐น Local Intranet Networks
Running communication platforms on local servers such as Matrix and Rocket.Chat.
๐น LoRa Technology
Using devices like Raspberry Pi, you can build a network that reaches up to 10โ15 km.
๐น Community WiFi Networks
Interconnected WiFi nodes covering cities and neighborhoods.
๐ This concept is already implemented in projects like Guifi.net and NYC Mesh. There are also apps that work without the Internet, such as Briar.
๐ก Conclusion:
Communication without the Internet is not science fiction โ itโs a critical technology for connectivity during crises.
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