diff --git a/.DS_Store b/.DS_Store
deleted file mode 100644
index 5717816..0000000
Binary files a/.DS_Store and /dev/null differ
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9dca83f
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.DS_Store
+
+# ignore directories in "visualizer" (extracted) 
+visualizer/**/
diff --git a/visualizer/.DS_Store b/visualizer/.DS_Store
deleted file mode 100644
index c01b88b..0000000
Binary files a/visualizer/.DS_Store and /dev/null differ