Calle is the creator and lead maintainer of the Cashu open source protocol. Cashu enables users to easily use bitcoin in a private, offline, and programmable way. Calle is also the maintainer of Bitchat android, a cross platform meshnet app that enables users to chat and send bitcoin without an internet connection.

Calle on Nostr: https://primal.net/calle (https://primal.net/calle) Calle on X: https://x.com/callebtc (https://x.com/callebtc) Bitchat: https://bitchat.free/ (https://bitchat.free/) Cashu: https://cashu.space/ (https://cashu.space/) Hackathon: https://nutnovember.org/ (https://nutnovember.org/) AOS: https://andotherstuff.org/ (https://andotherstuff.org/)

EPISODE: 184 BLOCK: 925030 PRICE: 1126 sats per dollar

(00:04:44) Bitchat: Bluetooth Mesh Without Internet (00:06:21) Protests and Outages Drive Downloads: Nepal, Indonesia, Madagascar, Côte d’Ivoire, Jamaica (00:09:51) Predicting Unrest from Download Spikes (00:14:27) Adding Nostr Transport: Hyperlocal Mesh vs. Geohash Chats (00:18:03) Geolocated Relay Selection (00:23:56) Ephemeral Identity, UX, and Censorship Considerations (00:28:37) Mesh Upgrades: Voice, Images, Files, Source Routing like Tor (00:30:23) WiFi Aware Mesh and Background Operation to Boost Range and Uptime (00:34:15) White Noise vs. Bitchat (00:40:00) Protocols and Transports: Weaving White Noise, Cashu, and Bitchat (00:43:48) Transport Neutral Design: Cashu and Nostr (00:45:57) Cashu Progress: Shipping Libraries, Dev Ecosystem Growth (00:51:18) We Need More Bitcoin Devs (00:53:08) Integrating Cashu into BitChat: Wallet UX and Local Payments (00:57:17) Running Mints: Spark, Ark, and Proof of Reserves/Liabilities (01:03:40) Layered Scaling Without Consensus Changes: Ark, Spark, Cashu (01:04:18) Bitcoin for Signal: Replacing MobileCoin with Cashu (01:13:32) Why Cashu for Signal? Privacy and Scaling (01:22:31) Mint Choice vs. Simplicity: Defaults, Lightning Interoperability, and UX (01:32:21) Focus on Financial Privacy for the Masses, not Distractions (01:37:11) Zcash Hype Dismissed; Call to Build on Bitcoin (01:39:26) Nut November Hackathon and How to Contribute to Bitchat and Cashu (01:45:06) Happy Thanksgiving

more info on the show: https://citadeldispatch.com (https://citadeldispatch.com) learn more about me: https://odell.xyz (https://odell.xyz) nostr: https://primal.net/odell (https://primal.net/odell)