Smart home
The household automation lane: Tuya smart plugs (bedside/office lamp) today, Pi 4B = Home Assistant planned (USB SATA SSD boot), Pi 3B = quorum/AdGuardHome. This note holds device picks, integration lore, and the air-quality sensor thread.
CO₂ metering: Sonoff AirGuard CO2 (2026-10-16)
Łukasz Lewandowski (59❤/9.5k views; Polish-language ask + follow-up, both captured in the chain): the search framed exactly right — “a true CO₂ measurement (NDIR / photoacoustic), not eCO₂ derived from VOC” — for bedroom/office, with the goal being recuperator control (the ventilation unit learning when and how much air to exchange per room). The pick:
- Sonoff AirGuard CO2, ~160 zł/unit (he bought two)
- NDIR technology (the real thing — stable, trustworthy readings; ±(50 ppm + 5%) claimed)
- Home Assistant integration “mega prosta” — also reports temperature and humidity
- After analyzing the competition: “the best quality-to-price ratio in my opinion”
- The rejected alternative: Apollo AIR-1 with SCD40 — accurate but 680 zł each, over 4× the price
- Next step (his): overnight CO₂-curve observation in the bedroom
Why this anchors here: the eCO₂-vs-NDIR distinction is the load-bearing shopping knowledge — cheap “CO₂” sensors estimate from VOC drift and are useless for closed-loop ventilation control; NDIR (or photoacoustic) actually measures it. The bedroom-overnight-curve → recuperator automation is precisely the HA lane the Pi 4B plan exists for. Kin: Wishlist (hardware section — the buy candidate), homelab monitoring doctrine (a sensor without an alert/automation is decoration).
The Android TV lane: debloat and tune over ADB (2026-10-18)
xenappblog (304❤/26.2k views; tweet + repo captured): “Vibe coding your TV is cool, but why waste your tokens when there is a native Windows & macOS app” — shield_optimizer (OSS) (bryanroscoe, 1.2k★, Rust + PowerShell v1): debloat/tune Android TV devices over ADB — disable bloat, switch launchers, sideload APKs, tweak HDMI-CEC and frame-rate matching, health reports, every change reversible. Targets Nvidia Shield TV, Onn 4K Pro, Chromecast w/ Google TV, Google TV Streamer. Engineering note worth stealing: docs/FEATURES.md is the canonical language-agnostic spec — both the desktop app and the PS script build against it, and feature PRs must update it in the same commit (spec-as-contract for a dual-implementation repo).
Kin: Android-TV-Desktop-Toolkit (OSS) (59★ — the broader ADB manager: network scan, ScrCpy mirroring, virtual remote) — the vault now has both ends of the lane: the focused optimizer with the spec discipline, and the general-purpose toolkit. The xenappblog framing is its own small doctrine entry: before vibe-coding a tool, check whether the community already shipped it — the AI brain rot accelerate-vs-replace test applied to household tooling.