Stan

install on Mac

brew install miniforge
conda init
source ~/.bash_profile
conda create -n stan

in the Conda environment

conda activate stan
conda install R cmdstan jupyter

# install RKernel
brew install freetype harfbuzz fribidi cppzmq librsvg 
conda install jupyter-server-proxy r-pbdzmq r-rsvg
R -e "install.packages('RKernel', repos = c('https://melff.r-universe.dev', 'https://cloud.r-project.org'))"
R -e "RKernel::installspec()"
jupyter server extension enable jupyter_server_proxy