# Ledger Integration

This guide will help you connect your Ledger device to your Accumulate wallet (ACME) account. The Accumulate wallet enables you to send and receive ACME.

**Prerequisite**

* You need to have Docker installed on your system.
* You need to have Git installed.
* It works on a Linux Ubuntu OS only.
* The Accumulate CLI supports the following hardware device: Ledger Nano S plus and Ledger Nano X.

### Install the Accumulate Ledger (ACME) app on your Ledger device

**Step 1** 

Clone Ledger repo from GitHub

```
git clone https://github.com/LedgerHQ/ledger-app-builder.git
```

**Step 2**

Locate the builder folder.

```
cd ledger-app-builder
```

**Step 3**

Run the ledger builder.

```
sudo Docker build -t ledger-app-builder:latest .
```

**Step 4**

Compile the app.

```
sudo docker run --rm -ti -v "$(realpath .):/app" ledger-app-builder:latest
```

**Step 5**

Then exit the shell

```
exit
```

**Step 6**

Clone Accumulate repo from Gitlab in the ledger builder repo

```
git clone https://gitlab.com/accumulatenetwork/ledger/app-accumulate.git
```

**Step 7**

Locate the accumulate folder.

```
cd app-accumulate
```

**Step 8**

Run the below command to open the docker shell.

```
./docker-loader.sh
```

**Step 9**

Run the following command in the `app` folder.

{% hint style="info" %}
**Note:** You will need to connect the Nano s-plus to your laptop and ensure it's unlocked.
{% endhint %}

```
make
```

**Step 10**

Add the following to `ENV` by typing the following command.

```
BOLOS_SDK=/opt/nanosplus-secure-sdk make load
```

If it doesn't work, run `make clean` then rerun the **step 10** command.

**Step 11**

At this stage, your Ledger Nano will show you **Deny unsafe manager** and an arrow **>** to see other options like **Public key** and **Allow safe manager.**

<figure><img src="/files/XWJ7TGf6aIHzCD3hWxZr" alt=""><figcaption><p><strong>Deny unsafe manager</strong></p></figcaption></figure>

Press the right button to navigate to **Allow safe manager.** Then press both buttons to accept.

<figure><img src="/files/VI4fTgcUPl7eD1yUtUYE" alt=""><figcaption><p><strong>Allow unsafe manager</strong></p></figcaption></figure>

**Step 12**

Install **app Accumulate** by pressing the right button until you see **Perform installation**

<figure><img src="/files/3zuaz7H2NDPIhi2qM7Ya" alt=""><figcaption><p>Install app accumulate</p></figcaption></figure>

Then, press both buttons to perform the installation.

<figure><img src="/files/nxDfu8opUTPJDUrvwzWZ" alt=""><figcaption><p><strong>Perform installation</strong></p></figcaption></figure>

{% hint style="info" %}
Your Ledger device will prompt you to enter your pin again.
{% endhint %}

If the installation is complete, you will see the screen below.

<figure><img src="/files/kfy8xUIAAkYh1a1iK09v" alt=""><figcaption></figcaption></figure>

You have successfully installed Accumulate on your Ledger device via CLI.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.accumulatenetwork.io/accumulate/integration/ledger-integration.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.