diff --git a/.gitignore b/.gitignore
index e69de29..25c8fdb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -0,0 +1,2 @@
+node_modules
+package-lock.json
\ No newline at end of file
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..de5d017
--- /dev/null
+++ b/package.json
@@ -0,0 +1,12 @@
+{
+  "scripts": {
+    "check": "tsc --noEmit",
+    "serve": "esbuild 3x5.js --bundle --format=iife --outfile=bundle.js --sourcemap --servedir=.",
+    "build": "esbuild 3x5.js --bundle --format=iife --outfile=bundle.js"
+  },
+  "devDependencies": {
+    "esbuild": "^0.18.17",
+    "jest": "^29.6.2",
+    "typescript": "^5.1.6"
+  }
+}