diff --git a/__tests__/cli.spec.ts b/__tests__/cli.spec.ts
index fee6859..f8bbf4a 100644
--- a/__tests__/cli.spec.ts
+++ b/__tests__/cli.spec.ts
@@ -33,8 +33,25 @@ test('prompts for the project name if none supplied', () => {
   expect(stdout).toContain('Project name:')
 })
 
-test('prompts for project template if none supplied when target dir is current directory', () => {
+test('prompts for the framework if none supplied when target dir is current directory', () => {
   fs.mkdirSync(generatePath, { recursive: true })
   const { stdout } = run(['.'], { cwd: generatePath })
   expect(stdout).toContain('Project template:')
 })
+
+test('prompts for the framework if none supplied', () => {
+  const { stdout } = run([projectName])
+  expect(stdout).toContain('Project template:')
+})
+
+test('asks to overwrite non-empty target directory', () => {
+  createNonEmptyDir()
+  const { stdout } = run([projectName], { cwd: __dirname })
+  expect(stdout).toContain(`Target directory "${projectName}" is not empty.`)
+})
+
+test('asks to overwrite non-empty current directory', () => {
+  createNonEmptyDir()
+  const { stdout } = run(['.'], { cwd: generatePath })
+  expect(stdout).toContain(`Current directory is not empty.`)
+})
\ No newline at end of file
diff --git a/package.json b/package.json
index 9b42e94..5bd5cb5 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "starter"
   ],
   "scripts": {
+    "preinstall": "npx only-allow pnpm",
     "watch": "vite build --watch",
     "build": "vite build",
     "prepublishOnly": "npm run build && npm run test",
@@ -50,5 +51,6 @@
   },
   "engines": {
     "node": "^14.18.0 || >=16.0.0"
-  }
+  },
+  "packageManager": "pnpm@8.0.0"
 }