How do I set environment variables on macOS?

Answer

For zsh (default on modern macOS): add export VIBGRATE_DSN="your-dsn" to ~/.zshrc, then run source ~/.zshrc. For bash: add to ~/.bash_profile or ~/.bashrc. For a single session: run export VIBGRATE_DSN="your-dsn" directly in terminal. Project-level: create a .env file with VIBGRATE_DSN=your-dsn and use a tool like direnv or dotenv to load it.