services:
  web:
    command: "python app.py"
    restart_policy: always
  database:
    command: "postgres"
    depends_on: []

$ sysg start

$ sysg start --name quick-task -- ./task.sh

$ sysg start --parent-pid 12345 --name worker_1 --ttl 3600 -- python job.py

$ sysg spawn --name worker_1 -- python job.py

$ sysg start --parent-pid <parent_pid> --name worker_1 -- python job.py

services:
  queue:
    command: "redis-server"
    restart_policy: always

  scheduler:
    command: "python scheduler.py"
    depends_on: ["queue"]
    spawn:
      mode: dynamic
      limit: 50

# scheduler.py
import os
import subprocess

while job := queue.pop():
    subprocess.run(["sysg", "start", "--parent-pid", str(os.getpid()),
                    "--name", f"job_{job.id}",
                    "--ttl", "3600", "--", "python", "worker.py", job.id])