diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..8965d6c
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+/themes
diff --git a/settings.json b/settings.json
index 3283a71..afbc03b 100644
--- a/settings.json
+++ b/settings.json
@@ -93,7 +93,8 @@
   },
   "languages": {
     "Nix": {
-      "tab_size": 2
+      "tab_size": 2,
+      "format_on_save": "off"
     }
   },
   "lsp": {