- [ ] Date
- [ ] Battery
	- [ ] Percentage
	- [ ] Status (charging, discharging
- [ ] Memory usage
- [ ] Disk usage?
	- [ ] IO load?
- [ ] CPU load
- [ ] Network activity
- [ ] Bluetooth?
- [ ] Sound
	- [ ] Level
	- [ ] Mute
	- [ ] Microphone
- [ ] MPD
- [ ] TLP

How can I efficiently run varied functions under varied circumstances?

- Pipewire can be signal-based.
- MPD will probably use the built-in `idle` command.
- CPU, Memory, Network run every *n* seconds.
- Battery status should listen for ACPI, percentage is *n* seconds.