diff --git a/.prettierignore b/.prettierignore
index cde4aff..482b4fa 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -2,10 +2,13 @@
 .next
 
 # dependencies
+package.json
+package-lock.json
 node_modules
 
 # build
 out
+coverage
 
 # python
 venv
diff --git a/package.json b/package.json
index 99b4bed..9781a7d 100644
--- a/package.json
+++ b/package.json
@@ -8,6 +8,7 @@
     "start": "npx serve out",
     "lint": "next lint --dir .",
     "check-format": "prettier --check .",
+    "format": "prettier --write . --cache",
     "prepare": "husky",
     "test": "jest --runInBand",
     "build-brc-db": "esrun files/build-catalog.ts"