embedded-react engine — a tiny C99 UI engine for MCUs you drive with JSX (Flow B AOT, or Flow A via the QuickJS bridge). Backend-agnostic: you provide the framebuffer flush.
SCADABLE fleet ops library for ESP32. Drop into your firmware, get managed MQTT + log streaming + telemetry + remote diagnostics + signed OTA for free.
System identity / status (chip, app, partitions, reset reason, uptime, heap) and restart control (reboot, reboot into the ROM bootloader), plus a framed stream service and a browser console (WebUSB / Web Serial)