Minimal configuration

[B.R.]

One could imagine a minimal server configured as such:
in */nginx/nginx.conf:
http {
    #All default http stuff, like MIME type inclusion, etc.
    include conf.d/*.conf
}

in */nginx/conf.d/default.conf
server {
    listen 80;
    index index.html index.htm;

    try_files $uri $uri/ /;
}

However, unless I made some mistake, it seems that such a configuration
returns a HTTP 500 error (with a 'too much internal redirection' error).

​Does nginx require any location block at all?
Or am I mistaken?
---
*B. R.*
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