Roman Laschuk focused on enhancing the continuous integration infrastructure for the LedgerHQ/ledger-live repository by migrating end-to-end tests to GitHub-hosted runners. He consolidated test execution onto a single high-resource runner, which streamlined the CI/CD workflow and reduced variability in test outcomes. Using JavaScript, TypeScript, and YAML, Roman leveraged GitHub Actions and Playwright to optimize test execution and improve overall performance and reliability. His work demonstrated a strong grasp of DevOps practices, particularly in test infrastructure migration and CI optimization. Over the month, Roman delivered a targeted feature that addressed workflow efficiency, reflecting depth in both technical execution and process improvement.