Can you name examples of systems responsible for startup initialization of resources or components?

Examples of systems responsible for startup initialization of resources or components:

• systemd — a system service manager in Linux that starts and manages services during system boot.
• init — the traditional initialization system in Unix-like operating systems.
• Kubernetes Init Containers — special containers that run before the main container to prepare the environment.
• Spring Boot — in Java applications, responsible for initializing components and dependencies at application startup.

All of them ensure the sequential and controlled startup of necessary components and resources.