diff --git a/spartan/aztec-network/values.yaml b/spartan/aztec-network/values.yaml
index 29b015301a9e..c86f6d6106f1 100644
--- a/spartan/aztec-network/values.yaml
+++ b/spartan/aztec-network/values.yaml
@@ -64,13 +64,14 @@ aztec:
 
   # The derivation path of the calcualted private keys
   # Starting from this index, the number of keys is equal to the number of replicas for the given service
-  # Set the "extraAccounts" to start at 0 so that just using the default mnemonic won't clash with validator, prover, and bot accounts
-  extraAccountsStartIndex: 0
-  ## The number of extra accounts to prefund
-  extraAccounts: 10
+  # Default accounts start at 0, and are used by the boot node to deploy the system contracts
+  numberOfDefaultAccounts: 10
   proverKeyIndexStart: 1000
   validatorKeyIndexStart: 2000
   botKeyIndexStart: 3000
+  extraAccountsStartIndex: 4000
+  ## The number of extra accounts to prefund
+  extraAccounts: 10
 
 bootNode:
   enabled: true
diff --git a/spartan/aztec-network/values/ci-sepolia.yaml b/spartan/aztec-network/values/ci-sepolia.yaml
index 82044d231ee3..0d28e12a62d8 100644
--- a/spartan/aztec-network/values/ci-sepolia.yaml
+++ b/spartan/aztec-network/values/ci-sepolia.yaml
@@ -3,6 +3,7 @@ aztec:
   proofSubmissionWindow: 8
   realProofs: false
   l1DeploymentMnemonic: ""
+  numberOfDefaultAccounts: 0
   validatorKeyIndexStart: 0
   proverKeyIndexStart: 3
   botKeyIndexStart: 4
diff --git a/spartan/aztec-network/values/ignition-testnet.yaml b/spartan/aztec-network/values/ignition-testnet.yaml
index a38d88504e67..ce7effe8faa6 100644
--- a/spartan/aztec-network/values/ignition-testnet.yaml
+++ b/spartan/aztec-network/values/ignition-testnet.yaml
@@ -3,6 +3,7 @@ telemetry:
 
 aztec:
   realProofs: true
+  numberOfDefaultAccounts: 0
   validatorKeyIndexStart: 0
   proverKeyIndexStart: 3
   testAccounts: true
diff --git a/spartan/aztec-network/values/sepolia-3-validators-with-metrics.yaml b/spartan/aztec-network/values/sepolia-3-validators-with-metrics.yaml
index 5b09eb380a45..99803192c18a 100644
--- a/spartan/aztec-network/values/sepolia-3-validators-with-metrics.yaml
+++ b/spartan/aztec-network/values/sepolia-3-validators-with-metrics.yaml
@@ -3,6 +3,7 @@ telemetry:
 
 aztec:
   realProofs: false
+  numberOfDefaultAccounts: 0
   validatorKeyIndexStart: 0
   proverKeyIndexStart: 3
   botKeyIndexStart: 4
diff --git a/spartan/aztec-network/values/sepolia-48-validators-with-metrics.yaml b/spartan/aztec-network/values/sepolia-48-validators-with-metrics.yaml
index c7036a86ca58..3b7b4053a693 100644
--- a/spartan/aztec-network/values/sepolia-48-validators-with-metrics.yaml
+++ b/spartan/aztec-network/values/sepolia-48-validators-with-metrics.yaml
@@ -3,6 +3,7 @@ telemetry:
 
 aztec:
   l1DeploymentMnemonic: ""
+  numberOfDefaultAccounts: 0
   validatorKeyIndexStart: 0
   proverKeyIndexStart: 48
   botKeyIndexStart: 49
diff --git a/spartan/aztec-network/values/sepolia-48-validators-with-proving-and-metrics.yaml b/spartan/aztec-network/values/sepolia-48-validators-with-proving-and-metrics.yaml
index 206b67bd4c7a..dd51254d7cbe 100644
--- a/spartan/aztec-network/values/sepolia-48-validators-with-proving-and-metrics.yaml
+++ b/spartan/aztec-network/values/sepolia-48-validators-with-proving-and-metrics.yaml
@@ -4,6 +4,7 @@ telemetry:
 aztec:
   realProofs: true
   l1DeploymentMnemonic: ""
+  numberOfDefaultAccounts: 0
   validatorKeyIndexStart: 0
   proverKeyIndexStart: 48
   botKeyIndexStart: 49
diff --git a/spartan/scripts/generate_devnet_config.sh b/spartan/scripts/generate_devnet_config.sh
index 5a6752ccf497..af11b1356390 100755
--- a/spartan/scripts/generate_devnet_config.sh
+++ b/spartan/scripts/generate_devnet_config.sh
@@ -4,6 +4,8 @@ source $(git rev-parse --show-toplevel)/ci3/source
 values_file="$1"
 value_yamls="../aztec-network/values/$values_file ../aztec-network/values.yaml"
 
+export NUMBER_OF_DEFAULT_ACCOUNTS=$(./read_value.sh "aztec.numberOfDefaultAccounts" $value_yamls)
+
 export NUMBER_OF_VALIDATOR_KEYS=$(./read_value.sh "validator.replicas" $value_yamls)
 export VALIDATOR_KEY_START_INDEX=$(./read_value.sh "aztec.validatorKeyIndexStart" $value_yamls)
 
@@ -21,12 +23,15 @@ export BLOCK_TIME=$(./read_value.sh "ethereum.blockTime" $value_yamls)
 export GAS_LIMIT=$(./read_value.sh "ethereum.gasLimit" $value_yamls)
 export CHAIN_ID=$(./read_value.sh "ethereum.chainId" $value_yamls)
 
+# Initialize arrays for each type of key indices
+DEFAULT_ACCOUNTS_INDICES=$(seq 0 $((NUMBER_OF_DEFAULT_ACCOUNTS - 1)))
 VALIDATOR_KEY_INDICES=$(seq $VALIDATOR_KEY_START_INDEX $((VALIDATOR_KEY_START_INDEX + NUMBER_OF_VALIDATOR_KEYS - 1)))
 EXTRA_ACCOUNTS_INDICES=$(seq $EXTRA_ACCOUNTS_START_INDEX $((EXTRA_ACCOUNTS_START_INDEX + EXTRA_ACCOUNTS - 1)))
 PROVER_KEY_INDICES=$(seq $PROVER_KEY_START_INDEX $((PROVER_KEY_START_INDEX + NUMBER_OF_PROVER_KEYS - 1)))
 BOT_KEY_INDICES=$(seq $BOT_KEY_START_INDEX $((BOT_KEY_START_INDEX + NUMBER_OF_BOT_KEYS - 1)))
 
-export PREFUNDED_MNEMONIC_INDICES=$(echo "$VALIDATOR_KEY_INDICES $EXTRA_ACCOUNTS_INDICES $PROVER_KEY_INDICES $BOT_KEY_INDICES" | tr ' ' '\n' | sort -u | tr '\n' ',' | sed 's/,$//')
+# Combine all indices, filter out empty items, sort, and format
+export PREFUNDED_MNEMONIC_INDICES=$(echo "$DEFAULT_ACCOUNTS_INDICES $VALIDATOR_KEY_INDICES $EXTRA_ACCOUNTS_INDICES $PROVER_KEY_INDICES $BOT_KEY_INDICES" | tr ' ' '\n' | grep -v '^$' | sort -u | tr '\n' ',' | sed 's/,$//')
 
 echo "Generating eth devnet config..."
 echo "PREFUNDED_MNEMONIC_INDICES: $PREFUNDED_MNEMONIC_INDICES"