OpenBuilds BLOX can be used with any existing ESP32-S3 supported firmware development toolchains and distributions

Below just an handful of the popular ones:

ESP-IDF (Espressif IoT Development Framework)

• The official development framework for ESP32 and ESP32-S3.
• ESP-IDF GitHub
• Documentation

PlatformIO

• A cross-platform IDE with support for ESP32-S3.
• PlatformIO ESP32
• Documentation

Eclipse IDE with ESP-IDF

• A popular integrated development environment for ESP32.
• Eclipse IDE for C/C++ Developers

Zephyr RTOS

• An open-source real-time operating system that supports ESP32.
• Zephyr RTOS Website
• ESP32-S3 Support

Mbed OS

• An open-source operating system for IoT devices that supports ESP32-S3.
• Mbed OS Website
• ESP32-S3 Support

Tasmota

• A highly configurable firmware for IoT devices.
• Tasmota Website
• GitHub Repository

CircuitPython

• A beginner-friendly version of Python for microcontrollers.
• CircuitPython Website

Lua (NodeMCU)

• Firmware that enables Lua scripting on ESP32-S3.
• NodeMCU GitHub
• Documentation

MicroPython

• A lean implementation of Python 3, designed for microcontrollers.
• MicroPython Website
• ESP32 Documentation

Mongoose OS

• An operating system for IoT devices that supports ESP32-S3.
• Mongoose OS Website
• GitHub Repository

OpenThread

• An open-source implementation of the Thread networking protocol.
• OpenThread Website
• ESP32 Support

RT-Thread OS

• An open-source real-time operating system with ESP32 support.
• RT-Thread OS Website
• ESP32 Support

ThingSpeak

• An IoT analytics platform service.
• ThingSpeak Website
• ESP32 Integration

Blynk

• An IoT platform for developing applications with mobile app integration.
• Blynk Website
• ESP32 Integration

Ecosystem Firmware (Ecosystem)

• Ecosystem firmware designed for various IoT applications, including support for ESP32.
• Ecosystem Firmware Website
• ESP32 Integration

Espruino

• JavaScript interpreter for microcontrollers, including ESP32.
• Espruino Website
• ESP32 Support

TUNIOT

• A development platform that provides tools for programming ESP32-S3.
• TUNIOT Website
• ESP32-S3 Support

NuttX

• A real-time operating system with a POSIX-compliant API, supporting ESP32.
• NuttX OS Website
• ESP32 Support

DigiX

• Firmware and tools for creating wireless sensor networks using ESP32.
• DigiX GitHub

Contiki OS

• An open-source operating system for IoT devices, including ESP32.
• Contiki OS Website
• ESP32 Support

Edison (Edison OS)

• A specialized firmware for IoT and edge computing, including support for ESP32.
• Edison OS Website