Just created a file with this command in it which I run to generate the post:

nostril --envelope --kind 30023 --content "$(cat traceroute.md)" --tag d "traceroute-chatgpt" --tag title "Improved traceroutes using ChatGPT" --tag summary "A neat trick for helping decode traceroute paths" --tag t jb55 --tag t chatgpt --sec $JB55_SEC

Which i just then relay with nostcat