services.bitcoind.<name>.prune

Reduce storage requirements by enabling pruning (deleting) of old blocks. This allows the pruneblockchain RPC to be called to delete specific blocks, and enables automatic pruning of old blocks if a target size in MiB is provided. This mode is incompatible with -txindex and -rescan. Warning: Reverting this setting requires re-downloading the entire blockchain. ("disable" = disable pruning blocks, "manual" = allow manual pruning via RPC, >=550 = automatically prune block files to stay under the specified target size in MiB).