Matthew Sharpe enhanced the preproduction environment for the ministryofjustice/modernisation-platform-environments repository by updating infrastructure configurations to support safer electronic monitoring data sharing. He used Infrastructure as Code principles with Terraform and HCL to add the g4s_cap_dw database to the preproduction databases list, enabling more comprehensive data pipeline testing. Additionally, he configured and applied new permissions for the g4s_emsys_tpims service, strengthening access controls and reducing risk during testing phases. Matthew documented and stabilized these changes to ensure maintainability and clarity for future development. His work focused on targeted, foundational improvements rather than broad feature delivery, reflecting depth in environment management.