diff --git a/hydra/nginx/berlin.scm b/hydra/nginx/berlin.scm
index 303fd35..a57640e 100644
--- a/hydra/nginx/berlin.scm
+++ b/hydra/nginx/berlin.scm
@@ -461,20 +461,24 @@ PUBLISH-URL."
     (body (list "alias /srv/guix.gnu.org-i18n;")))
 
    (git-http-nginx-location-configuration
     (git-http-configuration))
 
    ;; For Hurd bootstrap binaries.
    (nginx-location-configuration
     (uri "/guix")
     (body (list "root /var/www;")))
 
+   (nginx-location-configuration
+    (uri "~ (.html|.htm)$")
+    (body (list "try_files /$lang/$uri $uri =404;")))
+
    (nginx-location-configuration                  ;certbot
     (uri "/.well-known")
     (body (list "root /var/www;")))))
 
 (define guix.info-locations
   (list (nginx-location-configuration             ;certbot
          (uri "~ ^/\\.well-known")
          (body (list "root /var/www;")))
         (nginx-location-configuration
          (uri "~ /(.*)")
@@ -507,31 +511,33 @@ PUBLISH-URL."
      (list
       "access_log /var/log/nginx/bootstrappable.access.log;")))
 
    (nginx-server-configuration
     (listen '("80"))
     (server-name '("guix.gnu.org"))
     (root "/srv/guix.gnu.org")
     (locations guix.gnu.org-locations)
     (raw-content
      (list
+      "rewrite (.*)/$ $1/index.html;"
       "access_log /var/log/nginx/guix-info.access.log;")))
 
    (nginx-server-configuration
     (listen '("80"))
     (server-name '("guix.info"
                    "www.guix.info"))
     (locations guix.info-locations)
     (raw-content
      (append
       %tls-settings
       (list
+       "rewrite (.*)/$ $1/index.html;"
        "access_log /var/log/nginx/guix-info.https.access.log;"))))
 
    (nginx-server-configuration
     (listen '("80"))
     (server-name '("issues.guix.info"
                    "issues.guix.gnu.org"))
     (root "/home/rekado/mumi/")
     (locations
      (list (nginx-location-configuration ;certbot
             (uri "/.well-known")
@@ -614,33 +620,35 @@ PUBLISH-URL."
     (listen '("443 ssl"))
     (server-name '("guix.info"
                    "www.guix.info"))
     (ssl-certificate (le "guix.info"))
     (ssl-certificate-key (le "guix.info" 'key))
     (locations guix.info-locations)
     (raw-content
      (append
       %tls-settings
       (list
+       "rewrite (.*)/$ $1/index.html;"
        "access_log /var/log/nginx/guix-info.https.access.log;"))))
 
    (nginx-server-configuration
     (listen '("443 ssl"))
     (server-name '("guix.gnu.org"))
     (ssl-certificate (le "guix.gnu.org"))
     (ssl-certificate-key (le "guix.gnu.org" 'key))
     (root "/srv/guix.gnu.org")
     (locations guix.gnu.org-locations)
     (raw-content
      (append
       %tls-settings
       (list
+       "rewrite (.*)/$ $1/index.html;"
        "access_log /var/log/nginx/guix-gnu-org.https.access.log;"))))
 
    (nginx-server-configuration
     (listen '("443 ssl"))
     (server-name '("issues.guix.info"))
     (ssl-certificate (le "issues.guix.info"))
     (ssl-certificate-key (le "issues.guix.info" 'key))
     (root "/home/rekado/mumi/")
     (locations
      (list (nginx-location-configuration
@@ -710,20 +718,22 @@ PUBLISH-URL."
        "proxy_send_timeout          600;"
        "proxy_read_timeout          600;"
        "send_timeout                600;"
        "access_log /var/log/nginx/workflows-guix-info.https.access.log;"))))))
 
 (define %extra-content
   (list
    "default_type  application/octet-stream;"
    "sendfile        on;"
 
+   "set_from_accept_language $lang en de;"
+
    ;; Maximum chunk size to send.  Partly this is a workaround for
    ;; <http://bugs.gnu.org/19939>, but also the nginx docs mention that
    ;; "Without the limit, one fast connection may seize the worker
    ;; process entirely."
    ;;  <http://nginx.org/en/docs/http/ngx_http_core_module#sendfile_max_chunk>
    "sendfile_max_chunk 1m;"
 
    "keepalive_timeout  65;"
 
    ;; Use HTTP 1.1 to talk to the backend so we benefit from keep-alive
@@ -768,20 +778,25 @@ PUBLISH-URL."
    "proxy_connect_timeout 7s;"
    "proxy_read_timeout 10s;"
    "proxy_send_timeout 10s;"
 
    ;; Cache timeouts for a little while to avoid increasing pressure.
    "proxy_cache_valid 504 30s;"))
 
 (define %nginx-configuration
   (nginx-configuration
    (server-blocks %berlin-servers)
+   (modules
+    (list
+     ;; Module to redirect users to the localized pages of their choice.
+     (file-append nginx-accept-language-module
+                  "/etc/nginx/modules/ngx_http_accept_language_module.so")))
    (global-directives
     ;; This is a 72-core machine, but let's not use all of them for nginx.
     '((worker_processes . 16)
       (pcre_jit . on)
       (events . ((worker_connections . 1024)))))
    (extra-content
     (string-join %extra-content "\n"))))
 
 (define %zabbix-nginx-server
   (nginx-server-configuration