Starknet is a layer-2 scaling solution for the Ethereum blockchain, designed to increase scalability and reduce transaction costs. It enables developers to build and deploy decentralized applications with improved performance.

The key steps involve defining the token's contract, including its name, symbol, decimals, and initial supply. You'll also need to implement functions for token transfers, balances, and other ERC-20 specifications.

Yes, Starknet is compatible with the Ethereum Virtual Machine (EVM), allowing for interoperability with other Ethereum-based applications. You can leverage existing Ethereum tooling and infrastructure to integrate your token on Starknet with the wider Ethereum ecosystem.

Yes, Starknet provides a testnet environment where you can deploy and test your token contracts before deploying them on the mainnet. This allows you to ensure the functionality and correctness of your token implementation.

Starknet achieves security and scalability by utilizing zero-knowledge proofs and off-chain computation. It allows for efficient execution of smart contracts while maintaining the security guarantees of the Ethereum mainnet.

Cairo provides a secure and user-friendly programming language for smart contracts, while Starknet offers scalability and cost-efficiency. Together, they enable developers to create powerful and robust ERC-20 tokens on the Starknet blockchain.