diff --git a/op-chain-ops/genesis/config.go b/op-chain-ops/genesis/config.go
index 9ff847b421..6beb612f7b 100644
--- a/op-chain-ops/genesis/config.go
+++ b/op-chain-ops/genesis/config.go
@@ -225,6 +225,9 @@ type DeployConfig struct {
 	FundDevAccounts bool `json:"fundDevAccounts"`
 	// opBNB fermat hard fork
 	Fermat *big.Int `json:"fermat,omitempty"`
+	// SnowTimeOffset is the number of seconds after genesis block that snow hard fork activates.
+	// Set it to 0 to activate at genesis. Nil to disable snow fork.
+	SnowTimeOffset *hexutil.Uint64 `json:"snowTimeOffset,omitempty"`
 	// RequiredProtocolVersion indicates the protocol version that
 	// nodes are required to adopt, to stay in sync with the network.
 	RequiredProtocolVersion params.ProtocolVersion `json:"requiredProtocolVersion"`
@@ -553,6 +556,17 @@ func (d *DeployConfig) InteropTime(genesisTime uint64) *uint64 {
 	return &v
 }
 
+func (d *DeployConfig) SnowTime(genesisTime uint64) *uint64 {
+	if d.SnowTimeOffset == nil {
+		return nil
+	}
+	v := uint64(0)
+	if offset := *d.SnowTimeOffset; offset > 0 {
+		v = genesisTime + uint64(offset)
+	}
+	return &v
+}
+
 // RollupConfig converts a DeployConfig to a rollup.Config
 func (d *DeployConfig) RollupConfig(l1StartBlock *types.Block, l2GenesisBlockHash common.Hash, l2GenesisBlockNumber uint64) (*rollup.Config, error) {
 	if d.OptimismPortalProxy == (common.Address{}) {
@@ -600,6 +614,7 @@ func (d *DeployConfig) RollupConfig(l1StartBlock *types.Block, l2GenesisBlockHas
 		DAChallengeWindow:      d.DAChallengeWindow,
 		DAResolveWindow:        d.DAResolveWindow,
 		Fermat:                 d.Fermat,
+		SnowTime:               d.SnowTime(l1StartBlock.Time()),
 	}, nil
 }
 
diff --git a/packages/contracts-bedrock/scripts/getting-started/config.sh b/packages/contracts-bedrock/scripts/getting-started/config.sh
index 95ab527d60..bff35378fc 100755
--- a/packages/contracts-bedrock/scripts/getting-started/config.sh
+++ b/packages/contracts-bedrock/scripts/getting-started/config.sh
@@ -23,23 +23,24 @@ reqenv "L1_RPC_URL"
 block=$(cast block finalized --rpc-url "$L1_RPC_URL")
 timestamp=$(echo "$block" | awk '/timestamp/ { print $2 }')
 blockhash=$(echo "$block" | awk '/hash/ { print $2 }')
+l1chainId=$(cast chain-id --rpc-url "$L1_RPC_URL")
 
 # Generate the config file
 config=$(cat << EOL
 {
   "l1StartingBlockTag": "$blockhash",
 
-  "l1ChainID": 11155111,
-  "l2ChainID": 42069,
-  "l2BlockTime": 2,
-  "l1BlockTime": 12,
+  "l1ChainID": $l1chainId,
+  "l2ChainID": 901,
+  "l2BlockTime": 1,
+  "l1BlockTime": 3,
 
   "maxSequencerDrift": 600,
   "sequencerWindowSize": 3600,
   "channelTimeout": 300,
 
   "p2pSequencerAddress": "$GS_SEQUENCER_ADDRESS",
-  "batchInboxAddress": "0xff00000000000000000000000000000000042069",
+  "batchInboxAddress": "0xff00000000000000000000000000000000000901",
   "batchSenderAddress": "$GS_BATCHER_ADDRESS",
 
   "l2OutputOracleSubmissionInterval": 120,
@@ -98,6 +99,19 @@ config=$(cat << EOL
 
   "preimageOracleMinProposalSize": 1800000,
   "preimageOracleChallengePeriod": 86400,
+  "fermat": 0,
+  "snowTimeOffset": "0x0",
+  "fundDevAccounts": true,
+  "proofMaturityDelaySeconds": 12,
+  "disputeGameFinalityDelaySeconds": 6,
+  "respectedGameType": 0,
+  "useFaultProofs": false,
+  "usePlasma": false,
+  "daChallengeWindow": 160,
+  "daResolveWindow": 160,
+  "daBondSize": 1000000,
+  "daResolverRefundPercentage": 0,
+  "faultGameWithdrawalDelay": 604800
 }
 EOL
 )