diff --git a/packages/acn/package.json b/packages/acn/package.json
index 7290230..6a70e52 100644
--- a/packages/acn/package.json
+++ b/packages/acn/package.json
@@ -2,11 +2,22 @@
   "name": "@jwetzell/acn",
   "version": "0.1.0",
   "description": "",
-  "main": "dist/index.js",
-  "types": "dist/index.d.ts",
+  "main": "./dist/cjs/index.js",
+  "module": "./dist/esm/index.js",
+  "types": "./dist/types/index.d.ts",
+  "exports": {
+    ".": {
+      "import": "./dist/esm/index.js",
+      "require": "./dist/cjs/index.js",
+      "types": "./dist/types/index.d.ts"
+    }
+  },
   "scripts": {
     "prebuild": "rimraf dist",
-    "build": "tsc",
+    "build": "npm run build:cjs && npm run build:esm && npm run build:types",
+    "build:cjs": "tsc -p tsconfig.cjs.json",
+    "build:esm": "tsc -p tsconfig.esm.json",
+    "build:types": "tsc -p tsconfig.types.json",
     "prepublishOnly": "npm run build",
     "pretest": "npm run build",
     "test": "node --test --experimental-test-coverage"
diff --git a/packages/acn/tests/udp-decode.test.js b/packages/acn/tests/udp-decode.test.js
index 026cec7..296d872 100644
--- a/packages/acn/tests/udp-decode.test.js
+++ b/packages/acn/tests/udp-decode.test.js
@@ -1,6 +1,6 @@
 const { deepEqual, throws } = require('assert');
 const { describe, it } = require('node:test');
-const acn = require('../dist/index');
+const acn = require('../dist/cjs/index');
 
 const goodTests = [
   {
diff --git a/packages/acn/tsconfig.cjs.json b/packages/acn/tsconfig.cjs.json
new file mode 100644
index 0000000..265ef58
--- /dev/null
+++ b/packages/acn/tsconfig.cjs.json
@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "CommonJS",
+    "declaration": false,
+    "outDir": "./dist/cjs"
+  }
+}
diff --git a/packages/acn/tsconfig.esm.json b/packages/acn/tsconfig.esm.json
new file mode 100644
index 0000000..547b0be
--- /dev/null
+++ b/packages/acn/tsconfig.esm.json
@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "ESNext",
+    "declaration": false,
+    "outDir": "./dist/esm"
+  }
+}
diff --git a/packages/acn/tsconfig.json b/packages/acn/tsconfig.json
index 71e16d2..a5d4c1d 100644
--- a/packages/acn/tsconfig.json
+++ b/packages/acn/tsconfig.json
@@ -1,12 +1,12 @@
 {
   "compilerOptions": {
+    "moduleResolution": "Node",
+    "lib": ["ESNext"],
+    "target": "ESNext",
     "esModuleInterop": true,
-    "module": "commonjs",
-    "target": "ES2020",
-    "declaration": true,
-    "rootDir": "./src",
-    "strict": true,
-    "outDir": "dist"
+    "isolatedModules": true,
+    "rootDir": "src/",
+    "strict": true
   },
-  "exclude": ["node_modules", "dist", "examples"]
+  "include": ["src/"]
 }
diff --git a/packages/acn/tsconfig.types.json b/packages/acn/tsconfig.types.json
new file mode 100644
index 0000000..2497e33
--- /dev/null
+++ b/packages/acn/tsconfig.types.json
@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "emitDeclarationOnly": true,
+    "declaration": true,
+    "outDir": "./dist/types"
+  }
+}