An exploration of Wi-Fi Aware for Bitchat (and other ad-hoc networks) - HackMD

Bitchat is an open source peer-to-peer mesh communication network started in the summer of 2025 by Jack Dorsey. It's available on iOS, Android, and MacOS. Others have explored beyond this, with a terminal client and a self-powered ESP32-based mesh relay node. In theory, Bitchat enables cross-platform peer-to-peer messaging even when there's no cellular or Wi-Fi network available. In practice, it's not proven to be reliable in an offline environment. However, I believe it could be, and it's clear that the team agrees and is actively working toward that end.

bitchat

bitchat is a decentralized peer-to-peer messaging application that operates over bluetooth mesh networks. no internet required, no servers, no phone numbers.

Bitchat – A decentralized messaging app that works over Bluetooth mesh networks | Hacker News

Now add a twist: • Senders pay a small fee to send a message. • Relaying devices earn a micro-payment (could be tokens, sats, etc.) for carrying the message one hop further. • End-to-end encrypted, fully decentralized, optionally anonymous.

Wi-Fi Aware | Apple Developer Documentation

Securely pair and connect to external devices over peer-to-peer Wi-Fi.

Building peer-to-peer apps | Apple Developer Documentation

Communicate with nearby devices over a secure, high-throughput, low-latency connection by using Wi-Fi Aware.

Bitchat.land - Decentralized Geohash-Based Chat & Heatmap Platform

Desktop chat client with real-time geohash-based messaging, interactive heatmaps, and decentralized communication.

I am very excited about AT Protocol

AT Protocol (atproto) is the right mix of useful, practical, personal, and fun. I think it could save the internet.

7 Useful Tips for Anyone Connecting to Public Wi-Fi

Our public spaces are now awash with wireless internet. Make sure you’re getting the most out of every connection.

KDE Connect

KDE Connect: A project that enables all your devices to communicate with each other.

The Plan B OS for ubiquitous computing. Voice control, security, and terminals as case studies

Tin Can - The Landline, Reinvented for Kids

The super-magical Wi-Fi landline for kids. No screens, no texting, no strangers — just real conversation with Grandma, besties, and contacts you approve. Plug in, twirl that cord, and time-travel to pure voice fun.

Dejan Marjanović on Twitter / X

When you say TCP/IP, would WiFi ever work? Just imagining using one GB10 for 4x M5 Max laptops (small team of devs in an office) as prefill compute.— Dejan Marjanović (@djnmrjnvc) August 19, 2026

Understanding Wi-Fi 4/5/6/6E/7/8 (802.11 n/ac/ax/be/bn)