find -name '*.html' -print0 | xargs -0 sed -i 's|<headerclass="clearfix d-print-none">|<headerclass="bg-washed-yellow pa2"><divclass="container"><strong>Archived:</strong> This is an archive from the 2024 conference. See <ahref="https://fossy.us/">fossy.us</a> for the latest event.</div></header><headerclass="clearfix d-print-none">|'
After setting up the 2025 DNS and pointing the 2024 to the archive server, create an HTTPS certificate. You may need to comment out the certificate configuration temporarily: