Waveshare ESP32-P4-WIFI6-POE-ETH Board Support Package (BSP) component in C++ (PoE-capable Ethernet, ES8311 audio, internal I2C; on-board ESP32-C6 for Wi-Fi 6 via ESP-Hosted)
Shared motor-controller interface for espp: the MotorAxis channel selector and the MotorController concept satisfied by the Basicmicro (serial) and Mcp266 (CANopen) drivers
Browser-rendered windowed desktop for microcontrollers: the firmware describes apps, windows and widgets (retained tree) and a web app draws and operates them over WebUSB / Web Serial; plus a stdout/stderr log capture ring
Emulate a Nintendo Switch 2 Pro Controller over BLE (custom GATT + reverse-engineered pairing) so a real Switch 2 accepts it as a native controller and can be woken from sleep.
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