anchor.diff:          The directory where the skeleton files are located. These files will be
           copied to the data directory of new users. Leave empty to not copy any
           skeleton files.
  -      '';
  -    };
  -
  -    nginx.enable = mkOption {
  -      type = types.bool;
  -      default = true;
  -      description = ''
  -        Whether to enable nginx virtual host management.
  -        Further nginx configuration can be done by adapting <literal>services.nginx.virtualHosts.&lt;name&gt;</literal>.
  -        See <xref linkend="opt-services.nginx.virtualHosts"/> for further information.
         '';
       };
   
  
positive.code:         group = "nextcloud";
          createHome = true;
        };
        users.groups.nextcloud.members = [ "nextcloud" "${serverUser}" ];
  
        environment.systemPackages = [ occ ];
      }
  
      (mkIf cfg.nginx.enable {
        services.nginx = {
          enable = true;
          virtualHosts = {
            ${cfg.hostName} = {
              root = cfg.package;
              locations = {
                "= /robots.txt" = {
                  priority = 100;
                  extraConfig = ''
                    allow all;
                    log_not_found off;
                    access_log off;
                  '';
                };
                "/" = {
                  priority = 200;
                  extraConfig = "rewrite ^ /index.php;";
                };
                "~ ^/store-apps" = {
                  priority = 201;
                  extraConfig = "root ${cfg.home};";
                };
                "= /.well-known/carddav" = {
                  priority = 210;
                  extraConfig = "return 301 $scheme://$host/remote.php/dav;";
                };
                "= /.well-known/caldav" = {
                  priority = 210;
                  extraConfig = "return 301 $scheme://$host/remote.php/dav;";
                };
                "~ ^\\/(?:build|tests|config|lib|3rdparty|templates|data)\\/" = {
                  priority = 300;
                  extraConfig = "deny all;";
                };
                "~ ^\\/(?:\\.|autotest|occ|issue|indie|db_|console)" = {
                  priority = 300;
                  extraConfig = "deny all;";
                };
                "~ ^\\/(?:index|remote|public|cron|core/ajax\\/update|status|ocs\\/v[12]|updater\\/.+|ocs-provider\\/.+|ocm-provider\\/.+)\\.php(?:$|\\/)" = {
                  priority = 500;
                  extraConfig = ''
                    include ${config.services.nginx.package}/conf/fastcgi.conf;
                    fastcgi_split_path_info ^(.+\.php)(\\/.*)$;
                    try_files $fastcgi_script_name =404;
                    fastcgi_param PATH_INFO $fastcgi_path_info;
                    fastcgi_param HTTPS ${if cfg.https then "on" else "off"};
                    fastcgi_param modHeadersAvailable true;
                    fastcgi_param front_controller_active true;
                    fastcgi_pass unix:${fpm.socket};
                    fastcgi_intercept_errors on;
                    fastcgi_request_buffering off;
                    fastcgi_read_timeout 120s;
                  '';
                };
                "~ ^\\/(?:updater|ocs-provider|ocm-provider)(?:$|\\/)".extraConfig = ''
                  try_files $uri/ =404;
                  index index.php;
                '';
                "~ \\.(?:css|js|woff2?|svg|gif)$".extraConfig = ''
                  try_files $uri /index.php$request_uri;
                  add_header Cache-Control "public, max-age=15778463";
                  add_header X-Content-Type-Options nosniff;
                  add_header X-XSS-Protection "1; mode=block";
                  add_header X-Robots-Tag none;
                  add_header X-Download-Options noopen;
                  add_header X-Permitted-Cross-Domain-Policies none;
                  add_header X-Frame-Options sameorigin;
                  add_header Referrer-Policy no-referrer;
                  access_log off;
                '';
                "~ \\.(?:png|html|ttf|ico|jpg|jpeg|bcmap|mp4|webm)$".extraConfig = ''
                  try_files $uri /index.php$request_uri;
                  access_log off;
                '';
              };
              extraConfig = ''
                add_header X-Content-Type-Options nosniff;
                add_header X-XSS-Protection "1; mode=block";
                add_header X-Robots-Tag none;
                add_header X-Download-Options noopen;
                add_header X-Permitted-Cross-Domain-Policies none;
                add_header X-Frame-Options sameorigin;
                add_header Referrer-Policy no-referrer;
                add_header Strict-Transport-Security "max-age=15552000; includeSubDomains" always;
                error_page 403 /core/templates/403.php;
                error_page 404 /core/templates/404.php;
                client_max_body_size ${cfg.maxUploadSize};
                fastcgi_buffers 64 4K;
                fastcgi_hide_header X-Powered-By;
                gzip on;
                gzip_vary on;
                gzip_comp_level 4;
                gzip_min_length 256;
                gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
                gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;
  
                ${optionalString cfg.webfinger ''
                  rewrite ^/.well-known/host-meta /public.php?service=host-meta last;
                  rewrite ^/.well-known/host-meta.json /public.php?service=host-meta-json last;
                ''}
              '';
            };
          };
        };
      })
    ]);
  
    meta.doc = ./nextcloud.xml;
  
negative.code:       description = "Which package to use for the Nextcloud instance.";
        relatedPackages = [ "nextcloud17" "nextcloud18" "nextcloud19" ];
      };
  
      maxUploadSize = mkOption {
        default = "512M";
  