This appears to be the only info I can find for NGINX redirect rules from Simple Machines to XenForo, can someone please share this:
https://xenforo.com/community/resources/nginx-rewrites-for-simple-machines-forum-smf-xenforo-urls.3963/
https://xenforo.com/community/resources/nginx-rewrites-for-simple-machines-forum-smf-xenforo-urls.3963/