There is no doubt that this is a cool technical feat, but I don't think you'll catch me handling cron-like scheduling like this alongside application code.

I can see from comments like vvpan's that there is a fatigue around managing services in AWS/GCP/etc, but I have gone very much in the other direction in the last few years towards bare metal servers managed with NixOS. I feel much more confident in handling scheduled jobs on bare metal with Systemd timers than tying myself even deeper into a specific language+deployment solution ecosystem.