When designing build scripts for multi-package repositories, use parameterization to handle special cases rather than creating duplicate scripts with minor variations. This approach maintains consistency while accommodating package-specific needs. For example, instead of hardcoding different behaviors, add flags that can modify behavior: ```json "scripts": { "build": "standard-build-script --skipEsmPkg", "build:esm-pkg": "node ./scripts/create-esm-package-json.mjs" } ``` Similarly, prefer built-in parameterization of tools (like pnpm's `--dry-run` flag) over custom implementations for common CI/CD operations. This improves maintainability and leverages well-tested functionality.