Board Support Package (BSP) for Espressif's QEMU emulator: the virtual RGB panel, OpenCores Ethernet and SD card, so espp applications run with no hardware
Shared Bluetooth hub for Espressif SoCs, providing controller and host stack lifecycle management, GAP event routing, and resource arbitration with Bluedroid or NimBLE
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.