diff --git a/README.md b/README.md
index 12a2a4c..167ccaa 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,7 @@
 
 - Scripts must use `set -euo pipefail`
 - All work should be done in a temporary directory (`mktemp -d`)
+- Currently, only amd64 will be supported
 
 ## Building