Modified version of Openhaystack firmware for ESP-IDF v5.3
Obviously, I have made modifications for it to build on my ESP32C6, since apparently other firmwares only gave prebuilt binaries for the ESP32.
I'm 99.99% sure you can change the board if you're going to compile from the ESP-IDF command line or whatever
You're going to need to generate a .bin file from the code here for your board. Follow the rest of the installation of Openhaystack like normal.