A minor thing, but where it says
pip3 install git+https://github.com/waveshare/e-Paper.git#subdirectory=RaspberryPi_JetsonNano/python&egg=waveshare-epd
that (long) argument should actually be quoted, otherwise the (bash, at least) shell splits it at the '&', and tries to run the first part in a background fork. The second part (egg=waveshare-epd) then becomes just a variable assignment, and gets lost in the problem.
A minor thing, but where it says
pip3 install git+https://github.com/waveshare/e-Paper.git#subdirectory=RaspberryPi_JetsonNano/python&egg=waveshare-epd
that (long) argument should actually be quoted, otherwise the (bash, at least) shell splits it at the '&', and tries to run the first part in a background fork. The second part (egg=waveshare-epd) then becomes just a variable assignment, and gets lost in the problem.
pip3 install "git+https://github.com/waveshare/e-Paper.git#subdirectory=RaspberryPi_JetsonNano/python&egg=waveshare-epd"
Not sure whether it makes a real difference (losing the 'egg' parameter). It ended up working fine anyway :-)
Many thanks for this wonderful project, it just became an excellent birthday gift (running Chihiro for the (very long) moment).