# how to install yarn for a Ruby on Rails application?

---

## Open a terminal

---

## Insert the keys

```ruby
curl -sS https://dl.yarnpkg.com/debian/pubkey.gpg | sudo apt-key add -
echo "deb https://dl.yarnpkg.com/debian/ stable main" | sudo tee /etc/apt/sources.list.d/yarn.list
```

---

## Update the repository

```ruby
sudo apt update
```

---

## Install yarn

```ruby
sudo apt install yarn
```

---

## Check installation

```ruby
yarn --version
which yarn
yarn --help
```

Output

![](https://cdn.hashnode.com/res/hashnode/image/upload/v1709696065075/77ed0f6b-59fb-4b40-8cf7-92ee65caab7e.png align="center")

---

## Webpacker installation

```ruby
 rails webpacker:install
```

---

## **Done**

---

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---

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---

### Final thoughts

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