Home Assistant

A DIY BirdNET-Pi fork (Avian Visitors) adds a kachō-e collage overlay for real-time avian detection on a Raspberry Pi, detailing hardware costs (~$80), setup steps, and optional public exposure via Cloudflare or Home Assistant integration.

The piece argues the smart‑home boom collapsed due to reliability, privacy, and interoperability issues, highlighting a shift toward locally controlled, open or DIY solutions (e.g., Home Assistant) over cloud‑dependent ecosystems, while acknowledging niche uses and ongoing debate.

A battery-free, passive ultrasound tagging approach for indoor sensing is proposed with a full processing pipeline and open-source tooling, offering ultra-low-cost deployment but with no commercial metrics yet.