150,000 Lines of Vibe Coded Elixir: The Good, The Bad, and The Ugly

This article describes the experience of building BoothIQ, a trade show lead retrieval app, where 100% of the 150,000 lines of Elixir code were written by AI. Elixir's small language surface and low token usage make it well-suited for AI-generated code, but AI defaults to imperative patterns rather than idiomatic functional Elixir, and fundamentally cannot debug concurrency issues involving OTP, GenServers, or the actor model.

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