diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..e28090a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,21 @@
+# State and sealed storage (never version)
+.tai/
+
+# Screenshots
+*.png
+*.jpg
+*.jpeg
+
+# HTML scratch files
+*.html
+*.md
+
+# Backup files
+*.bak
+*.bak-*
+*.corrupt-*
+*.tmp
+
+# OS artifacts
+.DS_Store
+Thumbs.db