System.Environment

Purpose

Access process environment values in a controlled, explicit API.

Candidate surface

• Environment.Get(string name) -> Result<string, EnvironmentError>
• Environment.TryGet(string name) -> Option<string>
• Environment.Set(string name, string value) -> Result<unit, EnvironmentError>

Notes

• Mutating environment should be clearly scoped and documented.
• Runtime mediates platform differences.