Stuff just accumulates over time.

I looked into the /opt/Cellar folder, which holds all the Homebrew packages, and it was 10GB.

So I found this suggestion and ran:

brew remove --force $(brew list --formula)

and then:

brew remove --cask --force $(brew list)

to remove all commands and apps installed through Homebrew.

Then I reinstalled just the things I needed.

Lessons in this unit:

0:	Introduction
1:	How to use the macOS terminal
2:	Productivity gains of using a Mac and an iOS device
3:	A way to set up automations in macOS easily
4:	How to hide a file or folder in macOS Finder
5:	How to install a local SSL certificate in macOS
6:	Reverting a file to a previous version, on a Mac
7:	Take screenshots as JPG on macOS
8:	Convert an image or resize it using macOS Shortcuts
9:	Concatenating videos on macOS
10:	Fix a file's creation date in macOS
11:	Freeing space on a Mac
12:	How to add an “Open in Terminal” icon in macOS Finder
13:	How to add an “Open in VS Code” icon in macOS Finder
14:	How to find the bundle ID of a Mac app
15:	How to Fix the "Your CLT does not support macOS 11" error in macOS
16:	How to play a sound from the macOS command line
17:	How to remove the shadow from window screenshots in macOS
18:	▶︎ Removing all Homebrew stuff
19:	Run a Node.js script from your macOS menu bar