Worked on modularizing the build system for the containers/qm repository, focusing on the KVM subsystem. The approach involved extracting KVM-specific build logic from the main Makefile and relocating it into a dedicated Makefile under subsystems/kvm. This refactor, implemented using Makefile and build systems expertise, enabled isolated builds for the KVM subsystem and simplified ongoing maintenance. By decoupling subsystem logic, the changes reduced cross-subsystem dependencies and paved the way for more consistent builds across future subsystems. No bugs were addressed during this period, but the groundwork established supports easier onboarding and positions the project for improved automation and scalability.