Use https://bridgefy.me for offline communication. Source: over 1 year ago

Have a look at https://bridgefy.me/, this may be interesting to you. Source: over 1 year ago

5. There's another company called Bridgefy https://bridgefy.me/ that built a chat app used in some of the Hong Kong protests. - Source: Hacker News / almost 2 years ago

Bridgefy is designed to work on local Bluetooth (max about 100m) during natural disasters, a protest, at large events, at schools, etc. It will create a mesh network, so one or more other peers can help transmit messages further. See https://bridgefy.me/. Source: about 2 years ago

How about offline P2P mesh bluebottle chat? Check out this one used by protestors https://bridgefy.me/. Source: over 2 years ago

You can help get information about life beyond NK by donating media drives: https://flashdrivesforfreedom.org/. Source: 11 months ago

e.g. Dropping flash drives into North Korea. Source: about 1 year ago

There are several media covering this story about the smuggling of USB drives, including Washington Examiner, The Guardian and Buisness Insider just to name few. There's even a website for people who want to participate to that. Source: about 1 year ago

A similar practice is used today with North Korea, where balloons are floated into the country with SD Cards and USB sticks - which are small enough to break and swallow in a pinch. It is easy to get involved with this through https://flashdrivesforfreedom.org. Source: over 1 year ago

You should check out https://flashdrivesforfreedom.org/ - the load the donated sticks with positive/freedom related content and get them into North Korea to show the people a different way of life exists. Source: over 1 year ago