Nicholas Chang enhanced reliability, security, and maintainability across three HMCTS repositories during the month. In the terraform-module-postgresql-flexible repo, he introduced high-availability testing for PostgreSQL environments and standardized variable formatting using Terraform and HCL, improving infrastructure consistency. For cnp-flux-config, Nicholas streamlined repository management by removing the JitPack remote repository from the Artifactory configuration, which reduced dependency complexity and improved build performance. In cnp-plum-frontend, he addressed JWT security by integrating the jws package and updating the lockfile to pin dependencies, leveraging JavaScript and package management skills. His work focused on infrastructure as code, security enhancement, and continuous integration.