To build this repository, you need ESP-IDF v5.1.4.
$ sudo apt-get install git wget flex bison gperf python3 python3-pip python3-setuptools cmake ninja-build ccache libffi-dev libssl-dev dfu-util libusb-1.0-0
$ cd
$ mkdir esp
$ cd esp
$ git clone --recursive https://github.com/espressif/esp-idf.git
$ git checkout v5.1.4
$ git submodule update --init --recursive
$ ./install.sh
$ source export.sh
$ idf.py set-target esp32
The components directory is execluded from tracking, so you have to add arduino-esp32 component.
$ mkdir components
$ cd components
$ git clone https://github.com/espressif/arduino-esp32.git
$ cd arduino-esp32