Setup Nginx as a reverse proxy for discourse forum without dockers &any containers

Hey, I have a problem by setting up the Nginx as a reverse proxy for discourse forum without docker.
At the beginning I installed discourse forum without docker and any containers, I installed it on Digital ocean droplet console without setup the domain name & email, then now I reached to point I want to use the authenticated API’s, the authenticated process needs domain name and I added it to droplet, but I can’t reach the discourse forum that I installed so I tried to setup Nginx config, I followed docs and some answers on stack overflow, but my problem did not solve. Any suggestions or idea ?? i

Why would you want to do that? You don’t want to use a development installation for use behind a reverse proxy.

Only the docker based standard install is supported.