set $babel_root /home/nicolas/boinc_projects/babel;

    root   $babel_root/html/user;
    location / {
        index  index.php;
    }
    location /ops { root $babel_root/html; }

    location ~ ^/ops/(.*\.php)$ {
        alias $babel_root/html/ops/$1;
        include /etc/nginx/fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $request_filename;
        fastcgi_pass   unix:/tmp/php-fcgi.sock;
        fastcgi_index  index.php;
    }
    location ~ \.php$ {
        include /etc/nginx/fastcgi_params;
        fastcgi_param  SCRIPT_FILENAME    $request_filename;
        fastcgi_pass   unix:/tmp/php-fcgi.sock;
        fastcgi_index  index.php;
    }