Flipper Zero firmware source code
Flipper Zero Unleashed Firmware
A GUI based Nintendo Switch Bootloader
A system daemon to allow session software to update firmware
Atmosphère is a work-in-progress customized firmware for the Nintendo
ESPHome is a system to control your ESP8266/ESP32
Device OS (Firmware) for particle devices
Complete BIOS & firmware packs for RetroArch, Batocera, Recalbox, etc.
The firmware security analyzer
Complete BIOS and firmware packs for RetroArch, Batocera, Recalbox
Keyboard firmware for Atmel AVR and ARM controllers
Open Source Flight Controller Firmware
Alternative firmware for ESP8266 with easy configuration
FW for ESP8266/ESP8285/ESP32 used with 3D printer
Custom firmware for the Ulanzi Smart Pixel clock or self made awtrix
openFyde supported hardware "x86 PC with Intel HD graphics
A Toolbox companion for QMK Firmware
DS emulator, sorta
Circuit diagrams and firmware source code for Gboard DIY keyboards
A Linux operating system targeting embedded devices