A clean, reusable REST API client that provides low-level transport primitives (get/post) and high-level semantic functions for server operations (announce, save, shutdown, etc.). Demonstrates proper error handling, JSON parsing, and separation of concerns with minimal dependencies (only colors.sh for logging). Could be extracted for any project needing to interact with a similar REST API.

Implements a robust Discord webhook transport layer that handles message creation, editing, deletion recovery, and rate limiting. Uses proper timeout handling and exponential backoff patterns. Shows non-obvious skill in managing Discord's API constraints and failure modes while maintaining a simple interface for callers.

Manages application settings with provenance tracking (default/env/override), validation, normalization, and atomic writes. Includes sophisticated features like export capabilities, locking to prevent race conditions, and seamless integration with the companion service. Demonstrates advanced state management patterns suitable for any configuration-heavy application.