MQTT

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.

TinyOS is an ultra-lightweight Cortex-M RTOS with a small footprint and concrete performance characteristics, offering broad embedded features (TLS/DTLS, MQTT, CoAP, OTA, shell, FS) and explicit RAM/ROM requirements.