Encapsulates the Open Pixel Control (OPC) protocol logic for controlling LED strips. The Handler class processes incoming OPC messages (like setting pixel colors or querying state), updates the internal LED state representation, and generates appropriate responses. This component is transport-agnostic, relying only on the opc library, and can be reused in any project needing OPC communication regardless of the underlying network layer (UDP, TCP, or HTTP). It demonstrates clean separation of concerns by isolating protocol-specific logic from network transport details.

Implements a UDP-based discovery service that listens for a specific hex-encoded packet, validates incoming messages against it, and responds with device identification data encoded in CBOR. The core logic (packet matching, CBOR encoding/decoding) is generic and can be adapted for other discovery protocols by modifying the expected packet format and data structure. This component demonstrates a clean pattern for building network services: it handles only the transport and validation details, delegating data representation to external interfaces (IDiscoveryData). It is self-contained with minimal dependencies (just cbor and the types interface) and could be extracted for use in other discovery-based applications.