Sjoerd contributed to the influxdata/homebrew-core repository by updating the MonetDB dependency to version 11.53.13, focusing on maintaining build integrity and reproducibility for Homebrew users. He managed the formula and package updates in Ruby, ensuring the new version’s download URL and SHA256 checksum were correctly integrated while preserving existing metadata such as description and license. His approach emphasized traceable commits and verified metadata, reducing risk and supporting future MonetDB-related features. Although no bugs were fixed during this period, Sjoerd’s work demonstrated careful attention to dependency management and build processes, reflecting a methodical approach to formula and package maintenance.