Extra setup instructions for MacOS

You must have Xcode and CLT installed for Mac to run make setup.

If you're having trouble with the nodejs setup, check out this guide.

You must also have bash version 4.0 or higher. To make this your default shell:

Run brew install bash or brew upgrade bash
Go to /etc/shells and add usr/local/bin/bash
Run chsh -s /usr/local/bin/bash
Close your shell and reopen. To check your bash version, run bash --version.

Furthermore, some of the scripts (notably lang-stat) use grep -P. This flag is not available in MacOS. To solve this problem:

Run brew install grep
Make MacOS run the installed version of grep with: export PATH="/usr/local/opt/grep/libexec/gnubin:$PATH"