Worked on stabilizing the Sourcify test environment for the Happychain Testnet by addressing network configuration issues in the argotorg/sourcify repository. Focused on backend development and testing using TypeScript, the work involved updating the contract address and chain ID to align with the new Happychain Testnet, ensuring that tests targeted the correct network. Additionally, deprecated the 'partial' verification type was removed to simplify test configuration and reduce ongoing maintenance. These changes led to a more reliable continuous integration process, minimizing test flakiness and enabling faster validation cycles, ultimately improving the efficiency and stability of the testing workflow for the project.