I recovered from a sources meltdown simultaneous with an incautious replica/pull on a Plan 9 machine, an event that can scythe a wide swath through a file system. This total restoration from archive is a shorter process than recovery from a disk failure or similar catastrophe, because the venti store, the partition structure, and the fossil config branded at the...

Trying to think of the simplest useful example I could of stringing together nifty Plan 9 features without writing any code. Simple as it gets: using the archival file system to present a browseable cache of the past of a living web site under active development.