Borja Ortiz Llamas developed a flexible build configuration for the major/traefik repository, focusing on enabling dynamic Go garbage collector tuning through Makefile enhancements. By introducing a GOGC variable, Borja allowed environment-specific garbage collection settings to be passed directly into the Go build process, supporting reproducible builds and facilitating future performance optimizations. This work centered on build system configuration using Makefile and Go, laying the foundation for experimentation with garbage collector parameters across different deployment environments. Although no bugs were addressed during this period, the feature improved build flexibility and positioned the project for more efficient runtime performance tuning in subsequent iterations.