During January 2025, Guppy delivered cached volume support for the topolvm/topolvm repository, focusing on system programming and volume management using Go. Guppy introduced a new cached volume type by extending the VolumeType and OpenTarget constants, enabling the provisioning of caching-backed logical volumes. The implementation included a refactor of thin-volume detection logic to rely on volume attributes rather than pool presence, improving correctness in cached scenarios. Guppy also developed comprehensive tests to validate cached logical volumes, ensuring regression safety. This work addressed issue #1003, establishing more reliable and faster storage provisioning paths for cached workflows within the topolvm/topolvm project.