Validate types against the cjs (shows that its failing)

cjs/index.js

@@ -1,6 +1,6 @@
 const Fastify = require("fastify");
 const { fastify } = require("fastify");
-const { default: fastifiDefault } = require("fastify");
+const { default: fastifyDefault } = require("fastify");
 
 const fastify1 = Fastify();
 
@@ -26,7 +26,7 @@ fastify2
     process.exit(1);
   });
 
-const fastify3 = fastifiDefault();
+const fastify3 = fastifyDefault();
 
 fastify2
   .listen(3002)

package.json

@@ -4,11 +4,12 @@
   "description": "",
   "main": "index.js",
   "scripts": {
-    "cjs": "node ./cjs",
-    "esm": "node ./esm/index.mjs",
-    "ts-interop-false": "tsc -p ./typescript/es-module-interop-false/tsconfig.json && node ./typescript/es-module-interop-false/build",
-    "ts-interop-true": "tsc -p ./typescript/es-module-interop-true/tsconfig.json && node ./typescript/es-module-interop-true/build",
-    "all": "run-p cjs esm ts-interop-false ts-interop-true"
+    "run:cjs": "node ./cjs",
+    "run:esm": "node ./esm/index.mjs",
+    "run:ts-interop-false": "tsc -p ./typescript/es-module-interop-false/tsconfig.json && node ./typescript/es-module-interop-false/build",
+    "run:ts-interop-true": "tsc -p ./typescript/es-module-interop-true/tsconfig.json && node ./typescript/es-module-interop-true/build",
+    "run:typed-cjs": "tsc -p ./typed-cjs/tsconfig.json && node ./cjs",
+    "all": "run-p run:*"
   },
   "repository": {
     "type": "git",

typed-cjs/index.js

@@ -0,0 +1,39 @@
+const Fastify = require("fastify");
+const { fastify } = require("fastify");
+const { default: fastifyDefault } = require("fastify");
+
+const fastify1 = Fastify();
+
+fastify1
+  .listen(3000)
+  .then(() => {
+    console.log(`[CJS] module.exports is running.`);
+  })
+  .catch((err) => {
+    console.log(err);
+    process.exit(1);
+  });
+
+const fastify2 = fastify();
+
+fastify2
+  .listen(3001)
+  .then(() => {
+    console.log(`[CJS] named require is running.`);
+  })
+  .catch((err) => {
+    console.log(err);
+    process.exit(1);
+  });
+
+const fastify3 = fastifyDefault();
+
+fastify2
+  .listen(3002)
+  .then(() => {
+    console.log(`[CJS] default property require is running.`);
+  })
+  .catch((err) => {
+    console.log(err);
+    process.exit(1);
+  });

typed-cjs/tsconfig.json

@@ -0,0 +1,11 @@
+{
+  "extends": "../tsconfig.json",
+  "compilerOptions": {
+    "allowJs": true,
+    "checkJs": true,
+    "noEmit": true,
+  },
+  "include": [
+    "./index.js"
+  ]
+}