diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ed7b539..c847a2f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2,9 +2,9 @@ name: ci
 
 on:
   push:
-    branches: [ $default-branch ]
+    branches: [ main ]
   pull_request:
-    branches: [ $default-branch ]
+    branches: [ main ]
   
 jobs:
   test_build_push:
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..1f0c41a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+.idea/
+.nyc_output/
+node_modules/
+package-lock.json