Works: https://medium.com/@bjammal/install-nexus-repository-manager-behind-nginx-reverse-proxy-using-docker-18f745f207ee#:~:text=Access%20the%20Nexus%20Web%20User,HTTPs%3A%20https%3A%2F%2F192.168.0.17

https://serverfault.com/questions/926144/why-is-nginx-only-serving-the-index-mark-up-when-i-use-it-as-a-reverse-proxy-for