Rust Service Configuration with Figment or envy: Environment Variables, Typed Settings, and Validation

A practical two-hour session on Rust Service Configuration with Figment or envy, focused on Environment Variables, Typed Settings, and Validation. Rust is used as the implementation context while the core lesson stays on software engineering fundamentals, reliability, testing, and operational clarity.

Audience: entry-level and intermediate developers who want a practical engineering session, not a language tour.

Outcomes:

• Explain the practical boundaries of Rust Service Configuration with Figment or envy
• Apply Environment Variables in a small working example
• Apply Typed Settings in a small working example
• Apply and Validation in a small working example

Format: two hours with a short framing walkthrough, a concrete example, discussion of tradeoffs, and a closing checklist for practice.