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It consumes nothing other than checking that the hash of the contract matches the consensus. Other than that it's just included in the regular stake process.

To my knowledge it doesn't consume anywhere near as much as a running NN node does. Remember that the Linux superblock contract forwarding involves Windows nodes passing data in the form of compressed contract zips (<50 KB) to Linux nodes which then stake using that hash. The overhead should be rather minimal.

To your other point, there will be a flag in the config file that allows users to disable the feature if they desire.

Cool thanks, Linux users might be on older/low power kit

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