Always use the correct syntax for accessing environment variables based on the target platform. In JavaScript/Node.js environments, use `process.env.VARIABLE_NAME` instead of syntaxes from other languages (e.g., Python's `os.environ`). Example: ```javascript // Incorrect - Using Python syntax in JavaScript const config = { azure_endpoint: os.environ["AZURE_OPENAI_ENDPOINT"], azure_deployment: os.environ["AZURE_OPENAI_DEPLOYMENT_NAME"], openai_api_version: os.environ["AZURE_OPENAI_API_VERSION"] }; // Correct - Using JavaScript syntax const config = { azure_endpoint: process.env.AZURE_OPENAI_ENDPOINT, azure_deployment: process.env.AZURE_OPENAI_DEPLOYMENT_NAME, openai_api_version: process.env.AZURE_OPENAI_API_VERSION }; ``` For platform-specific configurations, consider using appropriate file formats (like .mdx for Node-specific code) or implement automatic import methods that work across environments to improve compatibility.