diff --git a/2025/xg-infra-upgrade-2025.md b/2025/xg-infra-upgrade-2025.md
index 962ede3..f03a526 100644
--- a/2025/xg-infra-upgrade-2025.md
+++ b/2025/xg-infra-upgrade-2025.md
@@ -115,6 +115,9 @@ root@mango:/data/test-dataset/dataset-1 # zfs list | grep dataset-1
 data/test-dataset/dataset-1   128M   410G   128M  /data/test-dataset/dataset-1
 ```
 
+## Automatic USB backup with devd
+
+* https://man.freebsd.org/cgi/man.cgi?devd.conf
 # OpenZFS VM performance and database block size
 
 https://klarasystems.com/articles/openzfs-storage-best-practices-and-use-cases-part-3-databases-and-vms/