This is based on the waveshare 2.13 v2 epaper demo example
## install python requirements
pip3 install -r requirements.txt
## run it manually
# hit ^C once to kill and run the clearscreen routines
# hit ^C twice to kill it immediately
python3 epaper.py
# or run it in the background
# first you should symlink 'nohup.out' to /dev/null in your current
# working directory so you don't write any output to nohup.out on disk
# then run the following command to background the program
nohup python3 epaper.py &
# to run the clear screen routine manually
python3 epaper.py --clear