Crun

Crun is a high-performance OCI Container Runtime, entirely coded in C, offering swift execution and a minimal memory footprint. It adheres strictly to the OCI Container Runtime specifications, ensuring compatibility with existing container ecosystems. What sets crun apart is its choice of programming language: while many similar tools are written in Go, crun opts for C, deeming it more suitable for low-level tasks like container runtime management.

Unlike other runtimes that re-exec themselves, crun functions as a library, making it easily integrable into programs without the need for external processes to manage OCI containers. This distinctive approach underscores crun's efficiency and versatility in handling containerized environments.