# Starknet Cairo Development Environment Setup This guide explains how to set up a development environment for Starknet using the Cairo programming language. ## Prerequisites - Linux/Unix-based system (Ubuntu is recommended) - Python 3.9 or higher - Git - Rust and Cargo ## Installation Steps ### 1. Install Rust and Cargo Run the following command to install Rust and Cargo: ```bash curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh source $HOME/.cargo/env ``` ### 2. Install Cairo Language Download and install Cairo: ```bash curl -L https://github.com/cairo-lang/cairo/releases/download/v2.5.3/cairo-2.5.3-ubuntu-22.04.deb -o cairo.deb sudo dpkg -i cairo.deb ``` ### 3. Install Python Dependencies Upgrade pip and install the Cairo Python library: ```bash python3 -m pip install --upgrade pip python3 -m pip install cairo-lang ``` ### 4. Install Scarb (Cairo Package Manager) Install Scarb, a package manager for Cairo: ```bash curl --proto '=https' --tlsv1.2 -sSf https://docs.swmansion.com/scarb/install.sh | sh ``` ### 5. Install VSCode Extensions Install the following extensions for better development experience: Cairo: For syntax highlighting and language support. Cairo Test Runner: For running tests directly from VSCode. ### 6. Configure Environment Variables Add Cairo to your PATH by adding this line to your ~/.bashrc or ~/.zshrc file: ```bash export PATH="$PATH:/path/to/cairo/bin" ``` ### 7. Verify Installation Check if Cairo and Scarb are installed correctly: ```bash cairo-compile --version scarb --version ``` ### Additional Tools and Resources Starknet CLI Install Starknet CLI tools: ```bash pip install starknet-devnet pip install starknet-py ``` ### Useful Development Tools Starknet Devnet: Local Starknet development network. Protostar: Framework for managing Cairo projects and running tests. Nile: Command-line tool for Starknet development. Troubleshooting If you run into any issues: Make sure all prerequisites are installed. Check if the environment variables are set correctly. Consult the official Cairo documentation for more help. Resources - Official Cairo Documentation - Starknet Documentation - Cairo Book