qmk_firmware/util/install/debian.sh

#!/bin/bash

DEBIAN_FRONTEND=noninteractive
DEBCONF_NONINTERACTIVE_SEEN=true
export DEBIAN_FRONTEND DEBCONF_NONINTERACTIVE_SEEN

_qmk_install_prepare() {
    sudo apt-get update
}

_qmk_install() {
    echo "Installing dependencies"

    sudo apt-get -yq install \
        build-essential clang-format diffutils gcc git unzip wget zip \
        python3-pip \
        binutils-avr gcc-avr avr-libc \
        binutils-arm-none-eabi gcc-arm-none-eabi libnewlib-arm-none-eabi \
        avrdude dfu-programmer dfu-util teensy-loader-cli

    python3 -m pip install --user -r $QMK_FIRMWARE_DIR/requirements.txt
}