I use aws relatively often but for fairly small scale stuff, selfhosting/homelab. I'm very scared of all these horror stories. I've set a budget and an alert f

I use aws relatively often but for fairly small scale stuff, selfhosting/homelab. I'm very scared of all these horror stories. I've set a budget and an alert for the budget. Is that enough? I can see the budget being overdrawn for the time it takes me to react to the alert but I see no way to actually shut down servies. It would probably be possible to script by monitoring the API and then issuing aws commands to shut things down. But it would be a huge project, someone should get on that.