I went to great pains to figure out how to disable freetype so we didn't have to drag in this dep:

https://github.com/Homebrew/homebrew/blob/726ed01022adedad39c91130ad9c27487c9ee92b/Library/Formula/mitmproxy.rb#L69-L73

If that hack no longer works, that code should be deleted, and this should use a `"freetype"` dep since the symbol form is deprecated.