We all know Signal, Matrix, Telegram, SimpleX, etc… But if you can’t access the internet you can’t communicate. Pretty logic. But would it be possible, at least theoretically, to create an app that permits to message people even if the internet goes down?
It might be a dumb question I really have no idea to be honest.
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This was a common thing that was developed for the international protests after Arab Spring, which would frequently have their Internet shut down as a State tactic to prevent communication amongst protestors.
Mesh net chat apps like FireChat were born in response
Yea but there are android versions too. Its to send files over WiFi direct phone to phone with no network but some also have chat.
Oh interesting! I’ll take a look into it thanks.
yggmail is a fairly obscure and experimental take on email on a mesh network: https://github.com/neilalexander/yggmail
Would this work through something like meshtastic?
yggmail specifically, probably not. yggdrasil uses TCP/IP and the Meshtastic latencies to perform connections would be too high AFAIK. It would probably only work in a fairly well-connected network. yggdrasil could be used directly over a WiFi protocol but it would need fairly good reception to function.
N.B. I haven’texperimented with this myself.
@Ju135 Briar over WiFi or Bluetooth.
Isn’t this what airdrop was?
Telegram isn’t P2P and isn’t recommended. Signal is good, but not P2P. Matrix is decentralized, not P2P. SimpleX is P2P, I think, but not sure.
SimpleX uses onion links
Simplex uses Severs, you can bring your own one, but it is not peer to peer when talking about direct communication to the recipient
positive-intentions is a decentralised P2P chat app. https://positive-intentions.com/
Briar or meshtastic
It’s not p2p but at least many years ago:
SMS.
If the Internet outage is local then the towers would still work and you’d be able to get texts. I went through a few storms where wired home internet was down, the towers weren’t giving me a data connection (no mobile web browsing or anything), but I was able to send and receive texts.
If you really care about what you’re asking after, do what someone else said and get a radio license. It’s 150 year old technology and every time something happens radio operators pop up some kind of emergency communications or bridge to the internet through repeaters or something.
Meshtastic can be encrypted and is LoRa based. Can easily hit nodes dozens of miles away with a good line of sight. It also relays messages across nodes to reach even further distances.
The first thing that comes to mind is Meshtastic: https://meshtastic.org/
I mean this is a terrible answer, but DS pictochat fits that
pictochat FTW
No joke, I was talking about this recently. I feel like niche groups (me included) are just going full-circle back to the DS days
This one works, if you don’t mind a little diy and texting only: https://circuitmess.com/products/chatter-lora-communication-device
Surprised nobody mentioned scuttlebutt yet https://scuttlebutt.nz/
SSB can use the internet to share encrypted messages via hubs/servers, but it also can share the same messages peer to peer in a mesh sort of setup without the internet using a ‘gossip’ protocol within a local network. It was invented by a sailor who was regularly away from WiFi due to being at sea.
