π RuView turns commodity WiFi signals into real-time spatial intelligence, vital sign monitoring, and presence detection — all without a single pixel of video.

Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at

Flipper Zero Unleashed Firmware

Marlin is a firmware for RepRap 3D printers optimized for both 8 and 32 bit microcontrollers. Marlin supports all common platforms. Many commercial 3D printers come with Marlin installed. Check with your vendor if you need source code for your specific machine.

Flipper Zero firmware source code

Comprehensive roadmap for aspiring Embedded Systems Engineers, featuring a curated list of learning resources

How to be low-level programmer

A suite of WiFi/Bluetooth offensive and defensive tools for the ESP32

Your Gateway to Embedded Software Development Excellence 👽

🐬 Feature-rich, stable and customizable Flipper Firmware

Open Source Soldering Iron firmware

Open-source e-reader firmware

Lua based interactive firmware for ESP8266, ESP8285 and ESP32

Source-verified BIOS and firmware packs for RetroArch, Batocera, Recalbox, Lakka, RetroPie, EmuDeck, RetroBat, RetroDECK, RomM, BizHawk, ROCKNIX, and MiSTer FPGA. Platform-native verification, with emulator source code as the deciding authority.

Enhanced version of Asus's router firmware (Asuswrt) (legacy code base)

EDK II

Third party firmware for Asus routers (newer codebase)

The official build framework for the Armbian Linux distribution. This repository contains the complete toolchain and scripts required to compile custom OS images from source, including kernel configuration, U-Boot handling, and board-specific tweaks for various ARM and ARM64 single-board computers.

Unofficial Galaxy Buds Manager for Windows, macOS, Linux, and Android

A system daemon to allow session software to update firmware