reverse-proxy.conf (Reverse proxy - only relevant section)

# https://nginx.org/en/docs/http/ngx_http_core_module.html#server
server {
    # https://nginx.org/en/docs/http/ngx_http_core_module.html#listen
    listen 443 ssl http2;
    listen [::]:443 ssl http2;
    # https://nginx.org/en/docs/ngx_core_module.html#include
    include /etc/nginx/conf.d/ssl.conf;
    # https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_certificate
    ssl_certificate /etc/nginx/certs/meinel.link.pem;
    # https://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_certificate_key
    ssl_certificate_key /etc/nginx/certs/meinel.link.key;
    # https://nginx.org/en/docs/http/ngx_http_core_module.html#server_name
    server_name nextcloud.foo.tld;
    # https://nginx.org/en/docs/ngx_core_module.html#include
    include /etc/nginx/conf.d/common.conf;
    # https://nginx.org/en/docs/http/ngx_http_core_module.html#location
    location / {
        # https://nginx.org/en/docs/ngx_core_module.html#include
        include /etc/nginx/conf.d/common-location.conf;
        # https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_pass
        proxy_pass http://127.0.0.1:8082/;
        # https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_redirect
        proxy_redirect http://127.0.0.1:8082 https://nextcloud.foo.tld;
    }
}

# https://nginx.org/en/docs/ngx_core_module.html#include
include /etc/nginx/conf.d/redirect.conf;