diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 92a903d..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..743df6d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,23 @@
+# macOS
+.DS_Store
+.AppleDouble
+.LSOverride
+._*
+
+# Editors / IDEs
+.vscode/
+.idea/
+*.swp
+*~
+
+# Go build output
+/scanner
+sentinel-scanner
+*.exe
+*.test
+*.out
+coverage.out
+
+# Scanner working artifacts (temp image tarballs / unpacked layers)
+*.tar
+/tmp/
diff --git a/cmd/.DS_Store b/cmd/.DS_Store
deleted file mode 100644
index 6484b48..0000000
Binary files a/cmd/.DS_Store and /dev/null differ