During June 2025, James Smith focused on stabilizing test builds and improving CI reliability for the tenstorrent/tt-kmd repository. He addressed a critical overflow issue in the dma_buf test by updating the AllocateDmaBuf index from uint8_t to uint32_t, ensuring compatibility with GCC 11 and preventing unsigned conversion errors. To further enhance the development workflow, James introduced a dedicated GitHub Actions job that builds tests in isolation, reducing build noise and accelerating feedback cycles. His work leveraged C++ and YAML within a CI/CD context, resulting in more deterministic test performance and a stronger foundation for ongoing kernel development and testing.