diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8c6666d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,12 @@
+# Ignore all files
+*
+
+# Unignore directories
+!*/
+
+# Only track .cs and .md files
+!*.cs
+!*.md
+
+# Keep gitignore itself
+!.gitignore