Follow the instructions here https://docs.python.org/3/library/venv.html to set up a virtual environment

To install requirements run python3 -m pip install --upgrade -r requirements.txt

Uses a modified version of the GPL V3 font "8x8 ASCII Bitmap Font, with C source" opengameart.org/content/8x8-ascii-bitmap-font-with-c-source

If convertrom.py is supplied in / out file arguments a C64 charrom binary (batteries not included) can be used to replace the open source / demo font.