Tested on RP3 3B+/4B - Raspbian OS Lite and Full (Bullseye 32-bit)

Step1). Install build tools and Update pip and setuptools:

• sudo apt-get update
• sudo apt-get upgrade
• sudo apt-get install pip
• python3 -m pip install --upgrade pip
• python3 -m pip install --upgrade setuptools
• sudo apt-get install qt5-qmake
• sudo apt-get install qml-module-qtquick-controls qml-module-qtquick-shapes qml-module-qtquick-controls2
• sudo apt-get install python3-pyqt5.qtquick python3-pyqt5.qtwebkit python3-pyqt5.qtmultimedia
• sudo apt-get install gcc python3-dev libcups2-dev
• pip3 install pycups

Step2). Execute GUI on Rpi locally:

• python3 main.py

Note1: Enable OpenGL for QML app by going to raspi-config (Enabled by default on Raspberry Pi 4)