How to prevent keychain items from being synced with iCloud KeyChain?

[onmyway133]

I see that Valet differentiates between Sharing Secrets Among Multiple Applications and Sharing Secrets Across Devices with iCloud. Can we have an option that prevents items from being synced to iCloud ? Maybe the lack of kSecAttrSynchronizable means no iCloud support?

[14lox]

My understanding is if the kSecAttrSynchronizable flag is not set to true and iCloud is setup on the account, the keychain will not be synced with iCloud. FXKeychain does not implement kSecAttrSynchronizable so no items will be synced.