Setup

This guide will help you set up Calimero in your device.

There are two main paths:

1. Install via Script or Homebrew (Recommended): Quickly install meroctl for most users.
2. Build from Source: For developers who want to contribute or modify the framework.

Supported Platforms

Calimero currently supports the following operating systems and architectures:

• Operating Systems: macOS, Linux
• Architectures: x86_64, arm64 (Apple Silicon)

note

If your platform is not supported, please create an issue on GitHub.

Installation

You can choose to install merod using either the installation script or Homebrew.

Homebrew

If you use Homebrew, you can install merod directly with the following steps:

Steps

1. Add the Calimero Homebrew tap:

   brew tap calimero-network/homebrew-tap

2. Install merod:

   brew install merod

3. Verify the installation:

   merod --version

If the version number appears, the installation was successful.

Installation Script

The installation script supports multiple terminal environments and will automatically configure your PATH based on your shell.

Steps

1. Open your terminal and run:

   curl -sSf https://raw.githubusercontent.com/calimero-network/core/master/scripts/install-merod.sh | bash

2. Source the updated PATH:

   source <your-shell-config-file>

   Replace <your-shell-config-file> with .bashrc, .zshrc, or the relevant configuration file for your shell.

3. Verify the installation:

   merod --version

If the version number appears, the installation was successful.

Notes for Shell Environments

The script automatically updates your PATH based on your shell configuration:

• Bash: Updates .bashrc.
• Zsh: Updates .zshrc.
• Fish: Modifies ~/.config/fish/config.fish.
• Csh/Tcsh: Updates .cshrc.

To apply the changes immediately, use the source command as described in step 2 above.

Next Steps

Initialize and run node

If this is your first time initializing the node, the process may take a little bit more time until all dependencies are downloaded. It will take around 7 minutes but can vary depending on your internet connection.

1. Initialize node

NEAR

Terminal

merod --node-name node1 init --server-port 2428 --swarm-port 2528

Starknet

Terminal

merod --node-name node1 init --server-port 2428 --swarm-port 2528 --protocol starknet

ICP

Terminal

merod --node-name node1 init --server-port 2428 --swarm-port 2528 --protocol icp

tip

A --protocol flag defines protocol for the node contexts.

Node configuration file contains protocol defined metada. Node file is located under ~/.calimero folder.

NEAR

Starknet

ICP

2. Run node

Terminal

merod --node-name node1 run

Wait for a few moments and node logs should appear.

When you see something like this that means that node is now ready for use.