diff --git a/.gitignore b/.gitignore
index 38a38dea..ce6c4663 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@ xcuserdata/
 
 # Build output
 build/
+.build/
 DerivedData/
 .deriveddata/
 *.app
diff --git a/script/build_and_run.sh b/script/build_and_run.sh
old mode 100755
new mode 100644
index 4cbb1c57..de7fc090
--- a/script/build_and_run.sh
+++ b/script/build_and_run.sh
@@ -6,7 +6,7 @@ PROJECT_PATH="${ROOT_DIR}/Core-Monitor.xcodeproj"
 SCHEME="Core-Monitor"
 APP_NAME="Core-Monitor"
 BUNDLE_ID="CoreTools.Core-Monitor"
-DERIVED_DATA_DIR="${ROOT_DIR}/.codex-build/DerivedData"
+DERIVED_DATA_DIR="${ROOT_DIR}/.build/DerivedData"
 CONFIGURATION="Debug"
 ACTION="run"