Since I've needed to setup a set of instances with my theme, I've reached this script to automate all tasks I use.
The MFedatto OMP theme has an extra context that I use for an extra diferenciation among my devices and instances, like rpi4, rpi5, opi0 or docker. There is an additional script to set them.
curl -s https://gist.githubusercontent.com/mfedatto/475a009c0713428503fed83b62a3a2e4/raw/6275e85e643244be535f288b2b8c62e6562adb1f/mfedatto-omp-bash.sh | bash