Worked on the openwrt/packages repository to resolve a critical build issue affecting the Fail2ban package. Investigated and addressed missing host build dependencies that led to import errors, specifically targeting the 'Cannot import setuptools.build_meta' problem documented in issue #28520. Applied a targeted fix using Makefile to update the build system, ensuring all necessary dependencies were included for successful package compilation. Verified the solution by testing builds across multiple release candidates, from 25.12.0-rc1 to rc5. Demonstrated skills in build system management and dependency management, focusing on stability and reproducibility within the OpenWrt package development workflow.