https://docs.conda.io/projects/conda/en/4.6.0/_downloads/52a95608c49671267e40c689e0bc00ca/conda-cheatsheet.pdf

brew install brew install --cask anaconda
add to top of (~/.zshrc)

export PATH="/usr/local/anaconda3/bin:$PATH"

dont do it, init below

check python version
conda create --name py39 python=3.9
conda env list
conda init zsh (one time)
conda activate py39
check python version