diff --git a/ci_scripts/ci_post_clone.sh b/ci_scripts/ci_post_clone.sh
new file mode 100755
index 0000000..c52d920
--- /dev/null
+++ b/ci_scripts/ci_post_clone.sh
@@ -0,0 +1,5 @@
+#!/bin/zsh
+set -e
+
+brew install cmake
+cmake -B xcode-main