Traditional smart contract deployments expose private keys on developer machines via environment variables, creating serious security risks. The Workdroid Cryptools Signer plugin for Hardhat 3 solves this by routing transaction signing through WalletConnect to a mobile wallet (such as Tangem, MetaMask, or Trust Wallet), so private keys never touch the development machine. The tutorial walks through installing the plugin, configuring hardhat.config.ts with a mobile accounts section, and deploying both a simple contract and an ERC721 NFT collection. A QR code is displayed in the terminal; scanning it with the mobile wallet app triggers an approval flow, after which the signed transaction is broadcast. The plugin supports multiple wallets across testnet and mainnet environments with no workflow changes.
Table of contents
The Security Problem with Traditional DeploymentsWhat’s Wrong With This Approach?Why Tangem Wallet Changes EverythingNo Seed Words. Ever.Why Tangem for Smart Contract Development?The Real Advantage for DevelopersHow the Workdroid Cryptools Signer Plugin WorksComponent BreakdownInstallation and ConfigurationGet Workdroid Inc. ’s stories in your inboxTutorial: Deploying Your First ContractStep 1: Create a Simple ContractStep 2: Create an Ignition ModuleStep 3: Deploy to MainnetStep 4: Scan the QR CodeStep 5: Verify the DeploymentTutorial: Deploying an NFT CollectionStep 1: Create the NFT ContractStep 2: Create the Ignition ModuleStep 3: Deploy with Your Mobile WalletWorking with TestnetsConfigure Multiple WalletsRecommended Wallets by EnvironmentThe Secure Development WorkflowConclusionKey TakeawaysThe Security DifferenceGet Started TodaySort: