What is Linea? Simply put, it is a Layer 2 solution that reduces the burden on Ethereum.

The Ethereum mainnet is slow and has high transaction fees, which everyone knows. Linea's solution is very straightforward - it moves transactions off-chain for processing and then packages the "proof" to throw back to the mainnet. It uses Zero-Knowledge Proof (ZK-Rollup) technology, which allows for enjoying the security of Ethereum while significantly reducing costs and time.

What is the most critical? **Complete EVM equivalence**.

This is not the vague term of "EVM compatible." Developers can directly deploy smart contracts from Ethereum to Linea without changing code or adaptation; the toolchain and infrastructure can all be used seamlessly. Compared to other L2 solutions that require code adjustments, this saves a lot of trouble.

The technical architecture is also very clear: the sequencer is responsible for ordering transactions, the prover generates validity proofs, and the cross-chain bridge relayer handles asset transfers. The three modules have clear divisions of labor and work together to ensure speed and security.

Linea is backed by the Consensys team – yes, the same folks who created the MetaMask wallet. Therefore, Linea is inherently deeply integrated with MetaMask and Infura, making it particularly easy for developers to deploy and providing a smoother user experience.

In summary: Linea provides developers with a "faster and cheaper Ethereum", and the migration cost is almost zero. This is a real boost for the overall scaling of the Ethereum ecosystem.