diff --git a/dmoj/docker-stack.yml b/dmoj/docker-stack.yml
index de1eab9..d2afadc 100644
--- a/dmoj/docker-stack.yml
+++ b/dmoj/docker-stack.yml
@@ -157,13 +157,16 @@ services:
       placement:
         constraints: [ node.hostname == general ]
 
-#  backups:
-#    image: ghcr.io/mcpt/wlmoj-backups
-#    env_file: [ environment/mysql.env, environment/mysql-admin.env, environment/backups.env ]
-#    networks:
-#      - db
-#    deploy:
-#      replicas: 1
+  sentinel:
+    image: ghcr.io/mcpt/sentinel
+    volumes:
+      - /var/share/:/var/share/:ro
+      - /var/share/configs/backups/config.toml:/config.toml:ro
+    command: "--config-file /config.toml"
+    networks:
+      - db
+    deploy:
+      replicas: 1
 
   redis:
     image: redis:alpine
diff --git a/dmoj/environment/backups.env b/dmoj/environment/backups.env
deleted file mode 100644
index ce677e0..0000000
--- a/dmoj/environment/backups.env
+++ /dev/null
@@ -1,7 +0,0 @@
-S3_BUCKET=wlmoj-backups
-S3_ACCESS_KEY_ID=
-S3_SECRET_ACCESS_KEY=
-S3_REGION=
-S3_ENDPOINT=https://<ACCOUNT_ID>.r2.cloudflarestorage.com
-MULTI_FILES=no
-SCHEDULE="0 4 * * *" # 4 AM UTC
\ No newline at end of file