Leonardo focused on improving documentation quality and developer experience across the paritytech/polkadot-sdk and polkadot-developers/polkadot-docs repositories. He delivered a dedicated Polkadart SDK documentation page, clarifying features, installation, and usage, and reorganized site navigation to streamline onboarding for new developers. In the Polkadot SDK, he corrected outdated documentation links, ensuring references pointed to the active repository and reducing confusion. His work emphasized content management, technical writing, and documentation management using Markdown and YAML, resulting in more reliable onboarding resources. Over two months, Leonardo addressed both feature delivery and critical documentation hygiene, demonstrating depth in maintaining and evolving developer-facing materials.