During January 2025, Marius Eriksen focused on backend development and code quality improvements across the navikt/dp-behov-soknad-pdf and navikt/dp-behov-journalforing repositories. He delivered a maintainability upgrade by refactoring and reformatting Kotlin code using Spotless, enhancing readability without altering core functionality. Marius also addressed reliability by fixing two critical bugs related to message loss in R&R, updating dependency versions and configuration files to ensure robust message handling. His work demonstrated a methodical approach to dependency management and code hygiene, leveraging Java and Kotlin to improve system stability and maintainability while minimizing risk of regression in production environments.