Basic configuration tips to have your Mac up and running for Data Engineering activities and to work well with admin and non-admin accounts

• Python3
• XCode
• Homebrew
• Anaconda
• iTerm2
• pyenv

• Download the .pkg installer from python.org here

Best way to install XCode might not necessarily be through the App Store

• Log in and download XCode installer here
• Open terminal and go to the Download folder
• xip -x <file_name.xip> Bypass verification step when unzipping
• On Finder go to the 'Applications' and remove any previous XCode app and just drag and drop from 'Downloads' to 'Applications'

• xcode-select --install Install CLT (Command Line Tools) before installing Homebrew
• Download the new .pkg installer here
• Add Homebrew to your PATH run brew shellenv in your shell profile (e.g. ~/.bash_profile or ~/.zprofile)
• echo "export PATH=/opt/homebrew/bin:$PATH" >> ~/.bash_profile && source ~/.bash_profile Update the PATH and activate it

• brew cask install myapp --appdir=~/Applications Install Casks to Home Directory

Reference: https://gist.github.com/Justintime50/de232f266cea55faf82e9d65d5bd94c0

• When opening terminal, there's a message to switch to Zsh: The default interactive shell is now zsh. To update your account to use zsh, please run 'chsh -s /bin/zsh'. For more details, please visit https://support.apple.com/kb/HT208050
• .bash_profile vs. .zprofile: If you have environment variables or startup commands in .bash_profile, you may want to move them to .zprofile. zsh will not automatically source .bash_profile, so any settings or configurations there won't be applied in a zsh session.
• .bashrc vs. .zshrc: The .bashrc file is for interactive bash sessions. In zsh, the equivalent is .zshrc. If you have aliases, functions, or other configurations in .bashrc, you might want to transfer them to .zshrc.
• However in OSX, ALL interactive shells are login shells hence many people do not create bashrc or zshrc.

• chsh -s /bin/zsh Change from Bash to Zsh
• nano ~/.zprofile Open the .zprofile file, it will empty if it didn't exist previously
• if [ -f ~/.bash_profile ]; then . ~/.bash_profile; fi Add at the very bottom of the file ~/.zprofile. Everytime a Zsh session starts, it will run the bash_profile file.

• https://stackoverflow.com/questions/23233603/how-to-load-bash-profile-when-entering-bash-from-within-zsh
• https://carlosroso.com/the-right-way-to-migrate-your-bash-profile-to-zsh/

• brew install git Install Git using Homebrew

• Download the pkg installer for Mac M1/M2 here
• conda config --set auto_activate_base false Use the system environment without conda as the default. This is remove (base) from terminal prompt after updating conda

• conda create --prefix ./env python=3.10 Create a virtual environment. First create a working folder
• conda activate ./env Activate the conda environment
• conda install jupyter notebook Install jupyter notebook server

• Shift + Command + P
• Select tpye "Create: New Jupyter Notebook"

• Machine Learning test https://www.youtube.com/watch?v=_1CaUOHhI6U and https://github.com/mrdbourke/m1-machine-learning-test
• To do: https://c51.lbl.gov/~walkloud/work_home/personal/setting-up-my-mac/homebrew

• brew install --cask iterm2 --appdir=~/Applications Install iTerm2 with a non-admin will get an error about accessing /Applications (which you cannot write to without admin privileges), instead with the --appdir option it will write to ~/Applications (which you can write to). More here: Homebrew/homebrew-cask#27431

• brew update
• brew install pyenv Install pyenv using Homebrew
• echo 'export PYENV_ROOT="$HOME/.pyenv"' >> ~/.bash_profile Set up your shell environment for Pyenv for bash_profile step 1/3
• echo 'command -v pyenv >/dev/null || export PATH="$PYENV_ROOT/bin:$PATH"' >> ~/.bash_profile step 2/3
• echo 'eval "$(pyenv init -)"' >> ~/.bash_profile step 3/3
• source ~/.bash_profile Activate bash_profile file

• Pyenv github https://github.com/pyenv/pyenv