diff --git a/package.json b/package.json
index 61220743f3..3108c6c969 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,10 @@
   "name": "node-nodejs-basics",
   "version": "1.0.0",
   "description": "This repository is the part of nodejs-assignments https://github.com/AlreadyBored/nodejs-assignments",
+  "engines": {
+    "node": ">=24.10.0",
+    "npm": ">=10.9.2"
+  },
   "type": "module",
   "scripts": {
     "cli:args": "node src/cli/args.js --some-arg value1 --other 1337 --arg2 42",
diff --git a/src/cli/args.js b/src/cli/args.js
index 8283f7f7aa..9e3622f791 100644
--- a/src/cli/args.js
+++ b/src/cli/args.js
@@ -1,5 +1,5 @@
 const parseArgs = () => {
-    // Write your code here 
+  // Write your code here
 };
 
-parseArgs();
\ No newline at end of file
+parseArgs();
diff --git a/src/cli/env.js b/src/cli/env.js
index fe4aa4a8df..e3616dc8e7 100644
--- a/src/cli/env.js
+++ b/src/cli/env.js
@@ -1,5 +1,5 @@
 const parseEnv = () => {
-    // Write your code here 
+  // Write your code here
 };
 
-parseEnv();
\ No newline at end of file
+parseEnv();
diff --git a/src/cp/cp.js b/src/cp/cp.js
index 4a87b98c55..72c6addc9c 100644
--- a/src/cp/cp.js
+++ b/src/cp/cp.js
@@ -1,5 +1,5 @@
 const spawnChildProcess = async (args) => {
-    // Write your code here
+  // Write your code here
 };
 
 // Put your arguments in function call to test this functionality
diff --git a/src/cp/files/script.js b/src/cp/files/script.js
index 44a0622fbc..0c6654f12f 100644
--- a/src/cp/files/script.js
+++ b/src/cp/files/script.js
@@ -1,12 +1,19 @@
-const args = process.argv.slice(2);
+import { EOL } from 'node:os';
+import { argv, stdout, stdin, exit } from 'node:process';
+
+const args = argv.slice(2);
 
 console.log(`Total number of arguments is ${args.length}`);
-console.log(`Arguments: ${JSON.stringify(args)}`);
+console.log(`Arguments: ${JSON.stringify(args)}${EOL}`);
 
 const echoInput = (chunk) => {
-    const chunkStringified = chunk.toString();
-    if (chunkStringified.includes('CLOSE')) process.exit(0);
-    process.stdout.write(`Received from master process: ${chunk.toString()}\n`)
+  const chunkStringified = chunk.toString();
+
+  if (chunkStringified.includes('CLOSE')) {
+    exit(0);
+  }
+
+  stdout.write(`Received from master process: ${chunk.toString()}${EOL}`);
 };
 
-process.stdin.on('data', echoInput);
+stdin.on('data', echoInput);
diff --git a/src/fs/copy.js b/src/fs/copy.js
index bd17fe3991..e226075b4c 100644
--- a/src/fs/copy.js
+++ b/src/fs/copy.js
@@ -1,5 +1,5 @@
 const copy = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
 await copy();
diff --git a/src/fs/create.js b/src/fs/create.js
index 8d18cf9fc2..6ede285599 100644
--- a/src/fs/create.js
+++ b/src/fs/create.js
@@ -1,5 +1,5 @@
 const create = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await create();
\ No newline at end of file
+await create();
diff --git a/src/fs/delete.js b/src/fs/delete.js
index 4718dbc4c5..a70b13766c 100644
--- a/src/fs/delete.js
+++ b/src/fs/delete.js
@@ -1,5 +1,5 @@
 const remove = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await remove();
\ No newline at end of file
+await remove();
diff --git a/src/fs/list.js b/src/fs/list.js
index c0a83dea15..0c0fa21f7e 100644
--- a/src/fs/list.js
+++ b/src/fs/list.js
@@ -1,5 +1,5 @@
 const list = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await list();
\ No newline at end of file
+await list();
diff --git a/src/fs/read.js b/src/fs/read.js
index 52c78cc6ee..e3938be563 100644
--- a/src/fs/read.js
+++ b/src/fs/read.js
@@ -1,5 +1,5 @@
 const read = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await read();
\ No newline at end of file
+await read();
diff --git a/src/fs/rename.js b/src/fs/rename.js
index 2bb99ecdb5..b1d65b0c86 100644
--- a/src/fs/rename.js
+++ b/src/fs/rename.js
@@ -1,5 +1,5 @@
 const rename = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await rename();
\ No newline at end of file
+await rename();
diff --git a/src/hash/calcHash.js b/src/hash/calcHash.js
index 450f8f72e2..e37c17ed62 100644
--- a/src/hash/calcHash.js
+++ b/src/hash/calcHash.js
@@ -1,5 +1,5 @@
 const calculateHash = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await calculateHash();
\ No newline at end of file
+await calculateHash();
diff --git a/src/modules/cjsToEsm.cjs b/src/modules/cjsToEsm.cjs
index 8b7be2a48b..089bd2db13 100644
--- a/src/modules/cjsToEsm.cjs
+++ b/src/modules/cjsToEsm.cjs
@@ -1,17 +1,12 @@
-const path = require('path');
-const { release, version } = require('os');
-const { createServer: createServerHttp } = require('http');
-require('./files/c');
+const path = require('node:path');
+const { release, version } = require('node:os');
+const { createServer: createServerHttp } = require('node:http');
 
-const random = Math.random();
+require('./files/c.cjs');
 
-let unknownObject;
+const random = Math.random();
 
-if (random > 0.5) {
-    unknownObject = require('./files/a.json');
-} else {
-    unknownObject = require('./files/b.json');
-}
+const unknownObject = random > 0.5 ? require('./files/a.json') : require('./files/b.json');
 
 console.log(`Release ${release()}`);
 console.log(`Version ${version()}`);
@@ -21,7 +16,7 @@ console.log(`Path to current file is ${__filename}`);
 console.log(`Path to current directory is ${__dirname}`);
 
 const myServer = createServerHttp((_, res) => {
-    res.end('Request accepted');
+  res.end('Request accepted');
 });
 
 const PORT = 3000;
@@ -29,12 +24,11 @@ const PORT = 3000;
 console.log(unknownObject);
 
 myServer.listen(PORT, () => {
-    console.log(`Server is listening on port ${PORT}`);
-    console.log('To terminate it, use Ctrl+C combination');
+  console.log(`Server is listening on port ${PORT}`);
+  console.log('To terminate it, use Ctrl+C combination');
 });
 
 module.exports = {
-    unknownObject,
-    myServer,
+  unknownObject,
+  myServer,
 };
-
diff --git a/src/modules/files/a.json b/src/modules/files/a.json
index 7878a209f6..d1f6dac48a 100644
--- a/src/modules/files/a.json
+++ b/src/modules/files/a.json
@@ -1,5 +1,5 @@
 {
-    "a": 1,
-    "b": 2,
-    "c": 3
-}
\ No newline at end of file
+  "a": 1,
+  "b": 2,
+  "c": 3
+}
diff --git a/src/modules/files/b.json b/src/modules/files/b.json
index 5214b8c93d..e442128649 100644
--- a/src/modules/files/b.json
+++ b/src/modules/files/b.json
@@ -1,5 +1,5 @@
 {
-    "a": 11,
-    "b": 22,
-    "c": 33
-}
\ No newline at end of file
+  "a": 11,
+  "b": 22,
+  "c": 33
+}
diff --git a/src/modules/files/c.cjs b/src/modules/files/c.cjs
new file mode 100644
index 0000000000..df728e1627
--- /dev/null
+++ b/src/modules/files/c.cjs
@@ -0,0 +1 @@
+console.log('Hello from c.cjs!');
diff --git a/src/modules/files/c.js b/src/modules/files/c.js
deleted file mode 100644
index ac09fab173..0000000000
--- a/src/modules/files/c.js
+++ /dev/null
@@ -1 +0,0 @@
-console.log('Hello from c.js!');
\ No newline at end of file
diff --git a/src/streams/read.js b/src/streams/read.js
index 52c78cc6ee..e3938be563 100644
--- a/src/streams/read.js
+++ b/src/streams/read.js
@@ -1,5 +1,5 @@
 const read = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await read();
\ No newline at end of file
+await read();
diff --git a/src/streams/transform.js b/src/streams/transform.js
index 315fc6597f..9e6c15fe84 100644
--- a/src/streams/transform.js
+++ b/src/streams/transform.js
@@ -1,5 +1,5 @@
 const transform = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await transform();
\ No newline at end of file
+await transform();
diff --git a/src/streams/write.js b/src/streams/write.js
index fc917160a2..84aa11e7cb 100644
--- a/src/streams/write.js
+++ b/src/streams/write.js
@@ -1,5 +1,5 @@
 const write = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await write();
\ No newline at end of file
+await write();
diff --git a/src/wt/main.js b/src/wt/main.js
index 37d80484ec..e2ef054d41 100644
--- a/src/wt/main.js
+++ b/src/wt/main.js
@@ -1,5 +1,5 @@
 const performCalculations = async () => {
-    // Write your code here
+  // Write your code here
 };
 
-await performCalculations();
\ No newline at end of file
+await performCalculations();
diff --git a/src/wt/worker.js b/src/wt/worker.js
index 441b2154f8..405595394d 100644
--- a/src/wt/worker.js
+++ b/src/wt/worker.js
@@ -2,7 +2,7 @@
 const nthFibonacci = (n) => n < 2 ? n : nthFibonacci(n - 1) + nthFibonacci(n - 2);
 
 const sendResult = () => {
-    // This function sends result of nthFibonacci computations to main thread
+  // This function sends result of nthFibonacci computations to main thread
 };
 
-sendResult();
\ No newline at end of file
+sendResult();
diff --git a/src/zip/compress.js b/src/zip/compress.js
index bb328f43c6..d55209587e 100644
--- a/src/zip/compress.js
+++ b/src/zip/compress.js
@@ -1,5 +1,5 @@
 const compress = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await compress();
\ No newline at end of file
+await compress();
diff --git a/src/zip/decompress.js b/src/zip/decompress.js
index 69f6c345f8..8aaf26c8a4 100644
--- a/src/zip/decompress.js
+++ b/src/zip/decompress.js
@@ -1,5 +1,5 @@
 const decompress = async () => {
-    // Write your code here 
+  // Write your code here
 };
 
-await decompress();
\ No newline at end of file
+await decompress();