Install CLI tools using Homebrew

• brew.sh

• in case of the following error:

  Error: Failed to link all completions, docs and manpages:
  

  Run this command:

  sudo chown -R $(whoami): /usr/local/share/zsh
  

  (from here)

Then:

1. brew install autoconf automake gawk make git-lfs icu4c pkg-config python3 saxon subversion pyyaml openssl@3 pipx
   1. NB! Note the output from icu4c, gawk and make installations. Do follow the instructions on how to add them to the path in your shell environment.
   2. You can recall the outputs whenever by brew info icu4c, brew info gawk and brew info make