Fleet is an open-source platform designed for IT and security teams managing large-scale computer environments. The platform provides device management capabilities including Mobile Device Management (MDM) functionality for endpoint oversight and control. The tool supports vulnerability reporting and detection engineering workflows, enabling security teams to identify and address security issues across their infrastructure. Fleet includes built-in support for CIS benchmarks for macOS and Windows systems, along with customizable query capabilities for security monitoring. Fleet offers device health monitoring features that track system status and performance metrics across managed endpoints. The platform supports posture-based access control mechanisms, allowing organizations to enforce security policies based on device compliance status. The tool includes software license management capabilities, helping organizations track and manage unused software licenses across their environment. Fleet operates through APIs, GitOps workflows, webhooks, and YAML configuration files. The platform supports multiple operating systems and environments including Linux, macOS, Windows, Chromebooks, cloud platforms (AWS, GCP, Azure), data centers, containers, and Linux-based IoT devices. Fleet's modular architecture allows organizations to implement specific features based on their requirements.