Implements a parser for the Guacamole wire protocol, decoding instructions and frames. Supports chaining filters (e.g., keylogger) to intercept and process protocol events. This is a self-contained, reusable component for any project needing to parse or proxy the Guacamole protocol, demonstrating non-obvious skill in binary protocol handling.

Defines the `Instance` interface (Create, Start, Suspend, Stop, Close) and related types for virtual machine management. This clean abstraction decouples the lab orchestration from concrete hypervisors (Docker, VirtualBox). It is a textbook example of the strategy pattern and can be reused in any project requiring polymorphic VM/container lifecycle management.

Provides an in-memory event store with hooks for persistence (e.g., YAML file save). The store pattern (NewEventStore) uses maps and callback functions to allow flexible backend switching without changing business logic. This is a reusable, testable storage pattern applicable to any Go service needing lightweight, configurable persistence.

Creates per-file zerolog loggers with automatic directory creation and file rotation. The `NewLogger` function encapsulates log configuration (level, output, caller info) in a reusable helper. This component can be extracted into any Go project requiring structured logging with minimal boilerplate.