diff --git a/.npmignore b/.npmignore
index dcaf8d6aca054f..1398bd4c996209 100644
--- a/.npmignore
+++ b/.npmignore
@@ -4,6 +4,11 @@
 .prettierrc
 .vscode
 build
+!/build/data.json
+!/build/import.d.mts
+!/build/legacynode.mjs
+!/build/require.d.ts
+!/build/types.d.ts
 docs
 test
 schemas
diff --git a/package.json b/package.json
index 99da6414f639dc..3f17fab89013e5 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,23 @@
   "description": "Browser compatibility data provided by MDN Web Docs",
   "main": "index.ts",
   "type": "module",
+  "exports": {
+    ".": {
+      "require": {
+        "types": "./build/require.d.ts",
+        "default": "./build/data.json"
+      },
+      "import": {
+        "types": "./build/import.d.mts",
+        "default": "./build/data.json"
+      }
+    },
+    "./forLegacyNode": {
+      "types": "./build/import.d.mts",
+      "default": "./build/legacynode.mjs"
+    }
+  },
+  "types": "./build/require.d.ts",
   "engines": {
     "node": ">=18.0.0"
   },
@@ -75,7 +92,7 @@
     "yargs": "~17.7.0"
   },
   "scripts": {
-    "prepare": "husky install && npm run gentypes",
+    "prepare": "husky install && npm run gentypes && npm run build",
     "diff": "node --loader=ts-node/esm --no-warnings=ExperimentalWarning scripts/diff.ts",
     "unittest": "NODE_ENV=test c8 mocha index.test.ts --recursive \"{,!(node_modules)/**}/*.test.ts\"",
     "coverage": "c8 report -r lcov && open-cli coverage/lcov-report/index.html",