No full rewrites place. I will start by properly correcting the NGINX codes. I feel solving that will provide a bases to rewrite the other parts or the codeba

No full rewrites place. I will start by properly correcting the NGINX codes. I feel solving that will provide a bases to rewrite the other parts or the codebases. Find new servers and backup everything onto the server and do the changes there including tests, and move successfully ones to production.