COW filesystems like BTRFS/ZFS with btrbk/sanoid are great for this. Only the initial copy may take a while, but after that it only takes the delta between the source and the destination to synchronize. On my main Server I have the OS on a single drive with BTRFS and all the actual data lives on a 4 disk zpool in raidz2. I have cron jobs set up to do hourly snapshots on both and I keep about a week worth of history. The BTRFS one gets synced to an external drive every 24 hours, while the zpool gets synced to another external 4 disk zpool on a weekly basis.
If they release them with a fully open driver that supports standard APIs (OpenGL, OpenCL, Vulkan) and release low-level documentation then NVidia’s proprietary trash will become redundant. Even better if they design them to be simple on a low-level so any programmer can just write their own driver/API/compiler. That would upset current software monopolies and the world would become a better place.