Home Brew is probably not what you think it is.
It is a command line tool for MacOS that fills in a lot of small but missing pieces. Things like PHP no longer come bundled with MacOS so Home Brew is how you get that done now. I could site many more examples but I think you get the idea.
The Home Brew developers are amazing. They have also seen many Apple release cycles. I find the following funny.
It is funny because they have to say the words.