Build a Mini Container Runtime / Process Supervisor (Practical)

Problem

Implement a small process supervisor that starts N child processes, restarts them on exit (with backoff), and reports status — mirroring container-runtime concerns.

Example

start workers; one crashes -> restart with backoff; report health

Constraints

• Handle signals and graceful shutdown

What Docker looks for

Idiomatic Go, correct process/signal handling, and clean concurrency.