Please follow the instructions on the coral.ai website to install the Edge TPU runtime.
Important
You must install the pycoral libs manually into the venv!
source /opt/zomi/server/venv/bin/activate and install
Note
You can also link in the pycoral libs from the system python site-packages directory into the venv.
Dont forget to add the user that runs zomi-server to the plugdev group.