The NVIDIA Container Toolkit is a production-grade suite of command-line tools, OCI hooks, and libraries that enable GPU acceleration inside containers. It provides a container runtime shim (`nvidia-container-runtime`), a prestart hook (`nvidia-container-runtime-hook`), a CDI (Container Device Interface) hook binary (`nvidia-cdi-hook`), a comprehensive CLI (`nvidia-ctk`) for generating CDI specs and configuring container engines (Docker, containerd, CRI-O), and an installer daemon. The system discovers NVIDIA GPU devices, libraries, and capabilities using NVML, nvsandboxutils, and platform-specific logic (Tegra CSV, WSL DXCore), then injects them into container OCI specs via hooks or CDI. It supports multiple runtime modes (legacy, CSV, CDI, JIT-CDI) and handles special features like MIG, IMEX channels, CUDA forward compatibility, and graphics capabilities. The codebase is well-structured with clean interfaces, extensive test coverage (unit, integration, e2e), and is actively maintained by NVIDIA.