tbh, a lot of big players (Microsoft, Facebook, Google) host a lot of AI stuff on huggingface and quite likely have to pay for that.
Also they had a few successful funding rounds, last one led by Salesforce.
Also Amazon is invested in them, probably offering a lot to them for free or discounted.
Systemd timer to poll upower when running on battery power, when battery is at 20%, use either system beep or set system volume and play a sound?