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.
SimpleOTA managed OTA client: check, download, and flash firmware with on-the-fly SHA-256 and Ed25519 signature verification, lifecycle status reporting, and bootloader-rollback-aware trial installs.