zebra-checkpoints uses a local
zcashd instance to generate a list of checkpoints for Zebra's checkpoint verifier.
Developers should run this tool every few months to add new checkpoints for the
checkpoint_sync = true mode.
(By default, Zebra syncs up to Sapling using checkpoints. These checkpoints don't need to be updated.)
For more information on how to run this program visit Zebra checkpoints document