In July 2025, Konstantin Kapitanov contributed to the hackclub/YSWS-Catalog repository by developing and delivering the Endpointer program entry, which introduced a REST API and grant offerings for Raspberry Pi or Cloud Credits. He focused on data management using YAML, ensuring the entry included essential metadata such as description, website, Slack channel, status, and deadline. The technical approach emphasized catalog management and Git-based change tracking, supporting integration with external systems and partner collaborations. While the work was limited to a single feature without bug fixes, it expanded the catalog’s capabilities for program discovery and scalable delivery through structured, maintainable data.