I used to arrive promptly at 7am, and clock out at 3:30pm.

The bus to the office was always empty.

The bus home was always packed.

Now I work from home

Unbound is going to need some context.

Not only can the number be negative, it can also be written in red ink.

No. You can install PiHole on basically any computer. Old laptop, existing PC, RaspberryPi, etc.

Establish that device as your DNS server inside your router.

Tada.