I had the GPT walk me through it. I didn’t clean up the syntax, all the nips are verbatim at the time of upload.  But here is the explanation in a paragraph: 

Sure! To create a single document from the NIPs files in the `nostr-protocol/nips` GitHub repository, we first cloned the repository to your local machine using a script. This script was saved as `nip_script.sh` on your Desktop. After cloning, we navigated to the `nips` directory, where all the NIP files, stored as individual Markdown files, were located. Using the `cat` command, we concatenated these `.md` files into one large file named `all_nips.txt`. Finally, we moved this combined file to your home directory for easy access. This process was executed step-by-step using the Terminal on your Mac, ensuring that each Markdown file from the repository was included in the final document.