What is Corepack and its functionality in Node.js

What is Corepack and its functionality in Node.js

Daily short news for you
  • For over a week now, I haven't posted anything, not because I have nothing to write about, but because I'm looking for ways to distribute more valuable content in this rapidly exploding AI era.

    As I shared earlier this year, the number of visitors to my blog is gradually declining. When I looked at the statistics, the number of users in the first six months of 2025 has dropped by 30% compared to the same period last year, and by 15% compared to the last six months of 2024. This indicates a reality that users are gradually leaving. What is the reason for this?

    I think the biggest reason is that user habits have changed. They primarily discover the blog through search engines, with Google being the largest. Almost half of the users return to the blog without going through the search step. This is a positive signal, but it's still not enough to increase the number of new users. Not to mention that now, Google has launched the AI Search Labs feature, which means AI displays summarized content when users search, further reducing the likelihood of users accessing the website. Interestingly, when Search Labs was introduced, English articles have taken over the rankings for the most accessed content.

    My articles are usually very long, sometimes reaching up to 2000 words. Writing such an article takes a lot of time. It's normal for many articles to go unread. I know and accept this because not everyone encounters the issues being discussed. For me, writing is a way to cultivate patience and thoughtfulness. Being able to help someone through my writing is a wonderful thing.

    Therefore, I am thinking of focusing on shorter and medium-length content to be able to write more. Long content will only be used when I want to write in detail or delve deeply into a particular topic. So, I am looking for ways to redesign the blog. Everyone, please stay tuned! 😄

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    The purpose of SEO is to help search engines see the website. When users search for relevant content, your website appears in the search results. This is almost a win-win situation where Google helps more people discover your site, and in return, Google gets more users.

    Now, the game with AI Agents is different. AI Agents have to actively seek out information sources and conveniently "crawl" your data, then mix it up or do something with it that we can't even know. So this is almost a game that benefits only one side 🤔!?

    CloudFlare's move is to make AI Agents pay for each time they retrieve data from your website. If they don’t pay, then I won’t let them read my data. Something like that. Let’s wait a bit longer and see 🤓.

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  • Continuing to update on the lawsuit between the Deno group and Oracle over the name JavaScript: It seems that Deno is at a disadvantage as the court has dismissed the Deno group's complaint. However, in August, they (Oracle) must be held accountable for each reason, acknowledging or denying the allegations presented by the Deno group in the lawsuit.

    JavaScript™ Trademark Update

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Problem

npm has been the default package manager bundled with Node.js for a long time. Most of us use npm to download packages from the npm registry, or whenever we need to reinstall all the dependencies used in a project. npm has high security mechanisms such as access to private packages, two-factor authentication and verification...

Convenient as it is, npm also has some limitations such as slow package installation speed, creating node_modules folders with the equivalent size of a black hole... along with a complex configuration. That's why many other package managers have emerged to overcome these weaknesses, such as Yarn or pnpm.

While Yarn is renowned for its package installation speed, pnpm has the mechanism of reducing the size of node_modules by sharing directories. Now we don't necessarily have to use npm by default, but can choose other package managers according to preferences or project needs.

Another good news is that starting from Node.js 14, we don't need to manually install Yarn or pnpm anymore as it has been integrated into Node.js with an experimental flag (Stability: 1) named Corepack. It may take a while for Corepack to be assigned a stable flag, but right now let's find out what Corepack is and how to use it.

What is Corepack?

Corepack is currently an experimental tool that helps manage package managers. It acts as a proxy. When called, it will determine which package manager is configured for the current project, install it if not already installed, and finally run it. All users see is the result as if interacting directly with the package manager.

The core of Corepack is:

  • No need to manually install package managers from external installation tools anymore.
  • Ensure that everyone in the team will use the correct version of the package manager through the configuration in "package.json".

How to use

As it is still in the experimental phase, Corepack needs to be activated with the corepack enable command, simply enter in the terminal:

$ corepack enable

Immediately, Corepack will be activated, and you can check the version of yarn or pnpm right now:

$ yarn --version
1.22.19

$ pnpm --version
8.5.1

Currently, Corepack only supports two package managers: yarn and pnpm. If you no longer want to use it, you just need to run the corepack disable command.

$ corepack disable

To determine the package manager used in the project, you can set it through the "packageManager" attribute in package.json. Open package.json and check if the packageManager attribute exists, if not, add it:

{
   ...  
   "packageManager": "yarn",  
   ...  
}

This action means that you configure yarn as the default package manager, if you intentionally use pnpm in the project to install or do anything else, an error message will be displayed on the screen requiring the use of yarn.

This is an exception with npm, meaning you can still use the npm command while "packageManager" is set as yarn or pnpm.

Summary

npm is the default package manager bundled with Node.js. Although it is a powerful tool, npm is not free from flaws. That's why Corepack was born with two package managers, yarn and pnpm. Now there's no need to manually install your favorite package manager anymore, you can use it right in Node.js.

References:

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