diff --git a/LICENSE.md b/LICENSE
similarity index 100%
rename from LICENSE.md
rename to LICENSE
diff --git a/dev/scripts/copy-files.js b/dev/scripts/copy-files.js
index 5526a69..55bcb80 100644
--- a/dev/scripts/copy-files.js
+++ b/dev/scripts/copy-files.js
@@ -1,5 +1,7 @@
 // eslint-disable-next-line @typescript-eslint/no-var-requires
-const fs = require('fs');
+const fs = require('node:fs');
 
 const target = 'dist';
-['package.json'].forEach((file) => fs.copyFileSync(file, `${target}/${file}`));
+['package.json', 'README.md', 'LICENSE'].forEach((file) =>
+  fs.copyFileSync(file, `${target}/${file}`)
+);
diff --git a/examples/published-package/api/products.js b/examples/published-package/api/products.js
new file mode 100644
index 0000000..e76e08d
--- /dev/null
+++ b/examples/published-package/api/products.js
@@ -0,0 +1,4 @@
+export default function productsHandler(req, res) {
+  res.setHeader('Content-Type', 'text/html');
+  res.end('<h1>Products</h1>');
+}
diff --git a/examples/published-package/package.json b/examples/published-package/package.json
index 2e714e2..ab52a3a 100644
--- a/examples/published-package/package.json
+++ b/examples/published-package/package.json
@@ -13,6 +13,6 @@
     "node": ">=14.8.0"
   },
   "dependencies": {
-    "node-file-router": "0.1.0"
+    "node-file-router": "0.1.3"
   }
 }
diff --git a/examples/published-package/pnpm-lock.yaml b/examples/published-package/pnpm-lock.yaml
index aecc823..c9309a8 100644
--- a/examples/published-package/pnpm-lock.yaml
+++ b/examples/published-package/pnpm-lock.yaml
@@ -6,12 +6,12 @@ settings:
 
 dependencies:
   node-file-router:
-    specifier: 0.1.0
-    version: 0.1.0
+    specifier: 0.1.3
+    version: 0.1.3
 
 packages:
 
-  /node-file-router@0.1.0:
-    resolution: {integrity: sha512-PTPqD8MdNcbPxf4Ty4ZDstULxGoQgeKcCFJ1qGlwj74uZQ3CYK2Yb1kUmuLI+s5Q+3NcC6RAW/DR2X9LwAEDKw==}
+  /node-file-router@0.1.3:
+    resolution: {integrity: sha512-SDorA7uwOTa8RPMKWsb2tsXMDYibfvAbpeocwi84f73au4ceihi0J0/nkoxVEwXB8kzcbchOrJUxeIs/SUB2PA==}
     engines: {node: '>=14.8.0'}
     dev: false
diff --git a/examples/published-package/server.js b/examples/published-package/server.js
index e3d40a5..b02031e 100644
--- a/examples/published-package/server.js
+++ b/examples/published-package/server.js
@@ -2,7 +2,7 @@ import * as http from 'node:http';
 import { initFileRouter } from 'node-file-router';
 
 async function run() {
-  const useFileRouter = await initFileRouter({ baseDir: `${__filename}/api` });
+  const useFileRouter = await initFileRouter({});
 
   const server = http.createServer((req, res) => {
     useFileRouter(req, res);
diff --git a/package.json b/package.json
index 59ab038..03ce781 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "node-file-router",
-  "version": "0.1.0",
+  "version": "0.1.3",
   "description": "A file-based routing for Node.js",
   "scripts": {
     "build:esm": "cross-env BABEL_ENV=esm babel src --extensions '.ts' --out-dir 'dist/esm' --out-file-extension .mjs --source-maps",
@@ -17,7 +17,6 @@
   "module": "./esm/file-router.mjs",
   "main": "../cjs/file-router.js",
   "types": "./types/file-router.d.ts",
-  "files": ["dist"],
   "exports": {
     "import": "./esm/file-router.mjs",
     "require": "./cjs/file-router.js"
diff --git a/src/file-router.ts b/src/file-router.ts
index 97d4809..aede32a 100644
--- a/src/file-router.ts
+++ b/src/file-router.ts
@@ -16,7 +16,7 @@ export async function initFileRouter({
   baseDir = path.join(process.cwd(), '/api'),
   ignoreFilesRegex,
   adapter = httpAdapter
-}: Options) {
+}: Options = {}) {
   const { getPathname, defaultNotFoundHandler, getMethod } = adapter;
   const fileRouteResolver = new FileRouteResolver({
     baseDir,