During December 2025, Sakalya Deshpande developed a mock Elasticsearch Rollup API for the VictoriaLogs repository, focusing on backend development and API design using Go. By implementing a mock response for the rollup API, Sakalya enabled local testing and continuous integration workflows to operate independently of a live Elasticsearch instance. This approach decoupled the testing process from external dependencies, allowing for faster feedback cycles and more reliable integration tests. The work demonstrated a practical application of API development and Elasticsearch expertise, delivering a targeted solution that improved testability and streamlined development without introducing unnecessary complexity or addressing unrelated bugs.