Jun 18, 2026 · 15 min · 10 segments
What happens to communication when the internet gets shut off? Frank Corva sits down with Calle — creator of Cashu and a contributor to BitChat — to unpack two of the most exciting open-source…
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BitChat came in a time where phones just got really good-
... at using Bluetooth Low Energy.
You know, it also came together with a year of political unrest around the world.
All of that is almost like a perfect storm situation where there is demand for alternative communication media in general, and it's a natural desire of people to defend against injustice and protect themselves and protect their friends, making sure that you can communicate when the internet is shut down or your governments try to stifle free speech, and so on.
I'm Frank Corva, joined by none other than Kalla, creator of Cashu and one of the contributors to BitChat.
Thanks for having me.
Um, I love both of these main projects that you're working on, Cashu and BitChat.
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BitChat came in a time where phones just got really good-
... at using Bluetooth Low Energy.
You know, it also came together with a year of political unrest around the world.
All of that is almost like a perfect storm situation where there is demand for alternative communication media in general, and it's a natural desire of people to defend against injustice and protect themselves and protect their friends, making sure that you can communicate when the internet is shut down or your governments try to stifle free speech, and so on.
I'm Frank Corva, joined by none other than Kalla, creator of Cashu and one of the contributors to BitChat.
Thanks for having me.
Um, I love both of these main projects that you're working on, Cashu and BitChat.