Axel Gesell contributed to the MetaMask/metamask-mobile repository by delivering mUSD support on the Get Started page, implementing conditional UI elements and feature flag gating using React and TypeScript. He ensured that mUSD-specific content and icons appeared only when the relevant feature flag was enabled, and wrote comprehensive tests to validate this behavior. Axel also improved deposit options by removing unsupported USDC and USDT tokens and disabling a problematic token to align with Transak integration requirements. His work focused on robust front end development, careful testing, and maintaining code quality, resulting in a more reliable and user-aligned onboarding experience.