Developed a dynamic TLS certificate loading feature for the spacelift-io/spacectl repository, focusing on enhancing deployment flexibility and security across macOS and Linux environments. The work involved replacing a hardcoded certificate authority path with an environment-variable-driven loader, supporting both a caFile variable and SSL_CERT_FILE fallback. Comprehensive testing was implemented in Go, including coverage for CA bundle loading, invalid paths, and invalid content scenarios. To ensure reliable cross-platform TLS testing, a real ECDSA P-256 self-signed certificate was generated. This backend development effort resulted in more robust TLS configuration, reduced environmental fragility, and improved CI stability for the project.