runC (runc)

runC (runc) is an open-source tool used to create and manage containers, which are lightweight, isolated environments running applications. Think of it as a specialized manager that sets up a secure, self-contained space on a computer where applications can run independently, without interfering with other programs. It uses container technologies to ensure consistent and secure operation, mainly working behind the scenes within systems like Docker and Kubernetes. Essentially, runc provides the foundational infrastructure that allows multiple applications to run separately and efficiently on the same machine.