Time Capsule support is dead in macOS 27, but you can keep the hardware alive

Apple has terminated support for AFP in macOS 27, effectively killing off the Time Capsule. However, affected owners might be able to revive their hardware.
AirPort devices that Apple used to produce. Now, Time Capsule isn't supported in macOS 27.A long-discontinued network storage device, Time Capsules gave Mac users a way to back up over a home network using Time Machine. While the hardware hasn't been available for quite a few years, support continued up to macOS 26.However, as warned in macO