add-setting-env

To add environment variables for default user settings, create a typed config file under src/envs using createEnv and zod, then wire it into the server's global configuration and update the relevant type definitions. This ensures domain-specific settings are properly validated and merged into the user store.

Typing and validating domain-specific environment variables is best handled using zod schemas within a createEnv configuration file. This approach provides runtime validation and TypeScript type inference, ensuring server config values for user settings are safe and predictable.

Wiring a new environment variable config into the global server config requires extending the server/globalConfig types and assembling the new domain configuration. You merge the zod-validated config object into the global configuration and user store integration.

Yes, you need to update .env.example when introducing new environment variables. Documenting changes in the env example file and relevant docs is a required step to reflect the new variable and ensure team members know the required server config inputs.

Yes, you can use this approach to manage multiple distinct user settings domains. By creating separate src/envs/<domain>.ts files for each domain and assembling them into the global config, you can scale environment variable management across different user settings.

Using zod and createEnv for server config provides runtime validation and centralized type safety that standard process.env lacks. This method ensures default user settings are correctly typed and validated against the schema before being merged into the global configuration.