Should this be 18446744073709551615.org? Is it common to use signed integers for timestamps?

The specs don't say anything about it but time_t on posix compliant systems is a signed integer.

i like the philophical thinking in the about section.

> Perhaps, in a way, the "end" of time will not be a grand cosmic event, but a simple overflow of digits—a reminder that no matter how linear we try to make our existence, we are still bound by the natural cycles that came before us.

nice reading