Magnus Schieder developed a Makefile and dev tooling refactor for the OpenSlides/OpenSlides repository, focusing on consolidating build and run commands to streamline developer workflows. By reorganizing shell scripts and deprecating legacy commands, Magnus standardized local development environments and simplified service management, making onboarding more consistent for new contributors. The work, implemented using Shell scripting and Makefile expertise, reduced the command surface area and improved the reliability of test execution. Although no major bugs were fixed during this period, the refactor laid a solid foundation for future CI/CD improvements and aligned development practices with ongoing project maintenance and automation goals.