companion code for plexus.dev tutorials.
esp32-alerts/— ESP32 + BME280 → plexus → slack alert. minimal hardware, ~15 minutes.anomaly-detection/— rolling z-score on a plexus telemetry stream. ~75 lines of python, no ML.pi-observer/— raspberry pi as a local MQTT gateway for a fleet of ESP32s. mosquitto + a 40-line bridge.tsdb-comparison/— benchmark four time-series databases on a sensor-data workload. real numbers, reproducible.