Marco Breuer

Builder of local-first smart home AI

About

Smart home tinkerer from Germany. I've been running Home Assistant for years and got frustrated that every AI voice assistant either required a cloud subscription or sent audio to remote servers. So I built Kacy Brain — a fully local AI assistant that runs on a Raspberry Pi and keeps your data at home. I build things that I actually want to use myself.

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Tastemaker

Gone streaking

Maker History

SmartHomeBloxVoice AI for Home Assistant — fully local, no cloud
Mar 2026

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Joined Product HuntMarch 23rd, 2026

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2mo ago

SmartHomeBlox - Voice AI for Home Assistant — fully local, no cloud

Self-hosted AI voice assistant for Home Assistant. Wake word, STT, and TTS run locally on a Raspberry Pi — audio never leaves your network. Only the final text goes to an AI API. Connects via Extended OpenAI Conversation integration. Supports Claude (Anthropic) and Llama 3.3 70B (Groq), switchable via browser UI.