Worked on enhancing maintainability and clarity across AdguardTeam repositories, focusing on build automation and documentation. Delivered updates to the AdGuard Browser Extension MV3 documentation, removing outdated references and clarifying rule application order when dynamic-rule limits are reached, using Markdown to ensure clear communication for users and contributors. In the HostlistsRegistry repository, centralized Node.js version checks by moving validation logic into the compose file, standardizing environment enforcement during startup and build processes. Employed JavaScript and DevOps practices to streamline workflows and reduce configuration drift. No user-facing defects were reported, and minor documentation polish further improved the overall developer experience.