Open-source MeshLive app does calls and livestreaming over Bluetooth, no internet needed
gautamgpt · reddit · 2026-10-24
A developer used Claude Code and Codex to build MeshLive, an open-source app for voice/video calls and livestreaming over Bluetooth with no internet. Android and iOS source code and technical docs are on GitHub.
The biggest lesson: passing tests say little about real hardware. Measured throughput was 1.1 Mbps between two Samsung phones but barely 65 kbps on another pair; a large video frame once blocked audio packets for almost a second. Code could compile, tests pass, and the implementation look perfectly reasonable while the actual call remained unusable.
His fix: treat physical devices as the source of truth — measure throughput, record failures, feed results back into the agent, and verify fixes across different phones. He calls this a core limitation of vibe coding: agents can reason about implementation but can't infer how every OEM's Bluetooth stack behaves.
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