This is why mesh nets are important.

If you are in a case like this and you need to communicate I recommend either Berty messenger or Briar, both support mesh networks without internet connection.

https://berty.tech/messenger

https://briarproject.org

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I can't find it on f-droid or the apk

Briar is definitely on F-droid and works pretty well

But Briar requires internet, I refer to berty

No it doesn't. It can use it also though...

Interesting, learned a new one. Thanks

except for my space towers ;)

Good to know about them. But I tried them both just now. The only way to be sure notification works is if you have the app open on your screen on sender and receiver devices

Projects look great. This week has me thinking as well.

Does a tool exist to share and store signed bitcoin transactions until internet access is restored? Maybe whichever party goes online can also sync all the blocks to prove confirmation.

I'm also thinking about lora. All those old helium miners could be repurposed to something useful.

Didn't know berty. Thanks

Mesh network / app is really the way to go. My prediction is that the major phone makers will use this in the future rather than using telecom providers.

But I didn’t know about Berty. Thank you for sharing.

I know FireChat, but it doesn’t work anymore (not updatet) https://en.wikipedia.org/wiki/FireChat

I tried to use Briar. I really did. But it was incredibly slow performance battery consuming. I want the project to win, but needs some time, IMO