diff --git a/docker-compose.yml b/docker-compose.yml
index b889631..1911b9b 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -20,6 +20,8 @@ services:
       WORDPRESS_CONFIG_EXTRA: |
         define('WP_SITEURL', 'https://www.junisthomsen.de');
         define('WP_HOME', 'https://www.junisthomsen.de');
+        define('WP_REDIS_HOST', 'redis');
+        define('WP_REDIS_PORT', 6379);
     volumes:
       - ./wordpress:/var/www/html
     networks:
@@ -38,6 +40,13 @@ services:
       - ./nginx-config:/etc/nginx/conf.d
     networks:
       - wordpress-app
+  redis:
+    image: redis:7-alpine
+    container_name: wp-junisthomsen-20251104-redis
+    restart: always
+    command: redis-server --save "" --appendonly no
+    networks:
+      - wordpress-app
 
 networks:
   wordpress-app:
diff --git a/tools/inst_plugins b/tools/inst_plugins
new file mode 100755
index 0000000..4411e5b
--- /dev/null
+++ b/tools/inst_plugins
@@ -0,0 +1,14 @@
+#!/bin/bash
+
+set -euo pipefail
+
+dc_wp() {
+    docker compose exec -u www-data wordpress wp $@
+}
+
+dc_wp plugin install redis-cache --activate
+dc_wp redis enable
+
+dc_wp plugin install wp-mail-smtp --activate
+
+echo "Done." >&2