_Follow along with the video_ --- ### Introduction In this lesson, you're about to learn the same type of layer 2 or rollup deployment that professional developers are using. On Remix, we can start by activating the **zkSync plugin** in our environment. In the _plugin manager_, search for "zkSync" and activate the zkSync module. You'll notice that a new zkSync tab on the left side will appear. ::image{src='/solidity/1-simple-storage/15-zksync-plugin/zksync-module.png' style='width: 100%; height: auto;'} This module is made of sections for compiling, deploying, and interacting with contracts on zkSync. ### Compiling Let's start by compiling the `SimpleStorage.sol` file by hitting the "Compile" button. > 👀❗**IMPORTANT**:br > Ensure that the **Solidity Compiler Version** in the contract matches the _[zkSync compiler requirements](https://github.com/Cyfrin/foundry-full-course-cu?tab=readme-ov-file#zksync-l2-deploy)_. As of this recording, the required version is `0.8.24`. ### Deploying After compilation, you can go to the `environment tab` to connect your MetaMask wallet, ensuring it is set to the _zkSync Sepolia testnet_. Once connected, you can **deploy and verify** the `SimpleStorage` contract. ::image{src='/solidity/1-simple-storage/15-zksync-plugin/wallet.png' style='width: 100%; height: auto;'} ### Verifying Deployment After hitting the deploy button, MetaMask will request a **signature**. Approve it, and after a short delay, a detailed output will appear indicating the deployment status. If the terminal output shows a green "verification successful" message, it means that your contract has been both deployed and verified correctly. ### Checking the Deployment To check our deployment, you can copy the contract address and paste it into the [zksync Sepolia explorer](https://sepolia.explorer.zksync.io/). Here, you can view the contract details. > 👀❗**IMPORTANT**:br > At the moment of recording, the zkSync plugin contains a minor bug. Please refer to lesson 14. ### Conclusion Well done! You've successfully deployed a smart contract to the zkSync testnet, marking a notable achievement and a significant step forward in your development journey.