diff --git a/beacond/cmd/main.go b/beacond/cmd/main.go
index 0e79ad3cc5..53bf0b5502 100644
--- a/beacond/cmd/main.go
+++ b/beacond/cmd/main.go
@@ -31,6 +31,7 @@ import (
 
 	nodebuilder "github.com/berachain/beacon-kit/mod/node-builder"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/app"
+	"github.com/berachain/beacon-kit/mod/node-builder/pkg/config/spec"
 	"go.uber.org/automaxprocs/maxprocs"
 )
 
@@ -45,7 +46,9 @@ func run() error {
 	nb := nodebuilder.NewNodeBuilder[app.BeaconApp]().
 		WithAppName("beacond").
 		WithAppDescription("beacond is a beacon node for any beacon-kit chain").
-		WithDepInjectConfig(Config())
+		WithDepInjectConfig(Config()).
+		// TODO: Don't hardcode the default chain spec.
+		WithChainSpec(spec.LocalnetChainSpec())
 
 	return nb.RunNode()
 }
diff --git a/mod/node-builder/builder.go b/mod/node-builder/builder.go
index e3a95b2c5f..db18af7dd0 100644
--- a/mod/node-builder/builder.go
+++ b/mod/node-builder/builder.go
@@ -34,7 +34,7 @@ import (
 	cmdlib "github.com/berachain/beacon-kit/mod/node-builder/pkg/commands"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/commands/utils/tos"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/components"
-	"github.com/berachain/beacon-kit/mod/node-builder/pkg/config/spec"
+	"github.com/berachain/beacon-kit/mod/primitives"
 	depositdb "github.com/berachain/beacon-kit/mod/storage/pkg/deposit"
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/cosmos/cosmos-sdk/client/config"
@@ -61,6 +61,9 @@ type NodeBuilder[T servertypes.Application] struct {
 	// Every node has some application it is running.
 	appInfo *AppInfo[T]
 
+	// chainSpec is the chain specification for the application.
+	chainSpec primitives.ChainSpec
+
 	// rootCmd is the root command for the application.
 	rootCmd *cobra.Command
 }
@@ -100,7 +103,7 @@ func (nb *NodeBuilder[T]) BuildRootCmd() error {
 			depinject.Supply(
 				log.NewLogger(os.Stdout),
 				viper.GetViper(),
-				spec.LocalnetChainSpec(),
+				nb.chainSpec,
 				&depositdb.KVStore{},
 			),
 			depinject.Provide(
@@ -169,6 +172,7 @@ func (nb *NodeBuilder[T]) BuildRootCmd() error {
 		nb.rootCmd,
 		mm,
 		nb.AppCreator,
+		nb.chainSpec,
 	)
 
 	return autoCliOpts.EnhanceRootCommand(nb.rootCmd)
diff --git a/mod/node-builder/creator.go b/mod/node-builder/creator.go
index 10d0539468..ab6393a85c 100644
--- a/mod/node-builder/creator.go
+++ b/mod/node-builder/creator.go
@@ -43,12 +43,13 @@ func (nb *NodeBuilder[T]) AppCreator(
 	traceStore io.Writer,
 	appOpts servertypes.AppOptions,
 ) T {
-	bk := *app.NewBeaconKitApp(
+	app := *app.NewBeaconKitApp(
 		logger, db, traceStore, true,
 		appOpts,
 		nb.appInfo.DepInjectConfig,
+		nb.chainSpec,
 		server.DefaultBaseappOptions(appOpts)...,
 	)
-	return reflect.ValueOf(bk).Convert(
+	return reflect.ValueOf(app).Convert(
 		reflect.TypeOf((*T)(nil)).Elem()).Interface().(T)
 }
diff --git a/mod/node-builder/decorators.go b/mod/node-builder/decorators.go
index bdb82cc8af..70121f4ebf 100644
--- a/mod/node-builder/decorators.go
+++ b/mod/node-builder/decorators.go
@@ -27,6 +27,7 @@ package nodebuilder
 
 import (
 	"cosmossdk.io/depinject"
+	"github.com/berachain/beacon-kit/mod/primitives"
 )
 
 // WithAppName sets the application name.
@@ -49,6 +50,14 @@ func (nb *NodeBuilder[T]) WithAppDescription(
 	return nb
 }
 
+// WithChainSpec sets the chain specification.
+func (nb *NodeBuilder[T]) WithChainSpec(
+	spec primitives.ChainSpec,
+) *NodeBuilder[T] {
+	nb.chainSpec = spec
+	return nb
+}
+
 // WithDepInjectConfig sets the dependency injection configuration.
 func (nb *NodeBuilder[T]) WithDepInjectConfig(
 	config depinject.Config,
diff --git a/mod/node-builder/pkg/app/app.go b/mod/node-builder/pkg/app/app.go
index aa3169ce2a..41f146ff0e 100644
--- a/mod/node-builder/pkg/app/app.go
+++ b/mod/node-builder/pkg/app/app.go
@@ -35,7 +35,7 @@ import (
 	"github.com/berachain/beacon-kit/mod/consensus-types/pkg/types"
 	datypes "github.com/berachain/beacon-kit/mod/da/pkg/types"
 	bkcomponents "github.com/berachain/beacon-kit/mod/node-builder/pkg/components"
-	"github.com/berachain/beacon-kit/mod/node-builder/pkg/config/spec"
+	"github.com/berachain/beacon-kit/mod/primitives"
 	beaconkitruntime "github.com/berachain/beacon-kit/mod/runtime/pkg/runtime"
 	"github.com/berachain/beacon-kit/mod/state-transition/pkg/core/state"
 	"github.com/berachain/beacon-kit/mod/storage/pkg/deposit"
@@ -79,6 +79,7 @@ func NewBeaconKitApp(
 	loadLatest bool,
 	appOpts servertypes.AppOptions,
 	dCfg depinject.Config,
+	chainSpec primitives.ChainSpec,
 	baseAppOptions ...func(*baseapp.BaseApp),
 ) *BeaconApp {
 	app := &BeaconApp{}
@@ -100,8 +101,7 @@ func NewBeaconKitApp(
 				appOpts,
 				// supply the logger
 				logger,
-				// TODO: allow nodebuilder to inject.
-				spec.LocalnetChainSpec(),
+				chainSpec,
 			),
 		),
 		&appBuilder,
diff --git a/mod/node-builder/pkg/commands/deposit/create.go b/mod/node-builder/pkg/commands/deposit/create.go
index 68b5da6407..19f43e0f0a 100644
--- a/mod/node-builder/pkg/commands/deposit/create.go
+++ b/mod/node-builder/pkg/commands/deposit/create.go
@@ -35,7 +35,7 @@ import (
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/commands/utils/parser"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/components"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/components/signer"
-	"github.com/berachain/beacon-kit/mod/node-builder/pkg/config/spec"
+	"github.com/berachain/beacon-kit/mod/primitives"
 	"github.com/berachain/beacon-kit/mod/primitives/pkg/constants"
 	"github.com/berachain/beacon-kit/mod/primitives/pkg/crypto"
 	"github.com/spf13/cobra"
@@ -45,7 +45,7 @@ import (
 // NewValidateDeposit creates a new command for validating a deposit message.
 //
 //nolint:gomnd // lots of magic numbers
-func NewCreateValidator() *cobra.Command {
+func NewCreateValidator(chainSpec primitives.ChainSpec) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "create-validator",
 		Short: "Creates a validator deposit",
@@ -54,7 +54,7 @@ func NewCreateValidator() *cobra.Command {
 		amount, current version, and genesis validator root. If the broadcast
 		flag is set to true, a private key must be provided to sign the transaction.`,
 		Args: cobra.ExactArgs(4), //nolint:mnd // The number of arguments.
-		RunE: createValidatorCmd(),
+		RunE: createValidatorCmd(chainSpec),
 	}
 
 	cmd.Flags().BoolP(
@@ -80,7 +80,9 @@ func NewCreateValidator() *cobra.Command {
 // for the geth client but something about the Deposit binding is not handling
 // other execution layers correctly. Peep the commit history for what we had.
 // 🤷‍♂️.
-func createValidatorCmd() func(*cobra.Command, []string) error {
+func createValidatorCmd(
+	chainSpec primitives.ChainSpec,
+) func(*cobra.Command, []string) error {
 	return func(cmd *cobra.Command, args []string) error {
 		var (
 			logger = log.NewLogger(os.Stdout)
@@ -115,7 +117,7 @@ func createValidatorCmd() func(*cobra.Command, []string) error {
 		// Create and sign the deposit message.
 		depositMsg, signature, err := types.CreateAndSignDepositMessage(
 			types.NewForkData(currentVersion, genesisValidatorRoot),
-			spec.LocalnetChainSpec().DomainTypeDeposit(),
+			chainSpec.DomainTypeDeposit(),
 			blsSigner,
 			credentials,
 			amount,
@@ -129,7 +131,7 @@ func createValidatorCmd() func(*cobra.Command, []string) error {
 			types.NewForkData(currentVersion, genesisValidatorRoot),
 			signature,
 			signer.BLSSigner{}.VerifySignature,
-			spec.LocalnetChainSpec().DomainTypeDeposit(),
+			chainSpec.DomainTypeDeposit(),
 		); err != nil {
 			return err
 		}
diff --git a/mod/node-builder/pkg/commands/deposit/deposit.go b/mod/node-builder/pkg/commands/deposit/deposit.go
index 4f55e86372..d6b736856a 100644
--- a/mod/node-builder/pkg/commands/deposit/deposit.go
+++ b/mod/node-builder/pkg/commands/deposit/deposit.go
@@ -29,13 +29,13 @@ import (
 	"github.com/berachain/beacon-kit/mod/consensus-types/pkg/types"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/commands/utils/parser"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/components/signer"
-	"github.com/berachain/beacon-kit/mod/node-builder/pkg/config/spec"
+	"github.com/berachain/beacon-kit/mod/primitives"
 	"github.com/cosmos/cosmos-sdk/client"
 	"github.com/spf13/cobra"
 )
 
 // Commands creates a new command for deposit related actions.
-func Commands() *cobra.Command {
+func Commands(chainSpec primitives.ChainSpec) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:                        "deposit",
 		Short:                      "deposit subcommands",
@@ -45,8 +45,8 @@ func Commands() *cobra.Command {
 	}
 
 	cmd.AddCommand(
-		NewValidateDeposit(),
-		NewCreateValidator(),
+		NewValidateDeposit(chainSpec),
+		NewCreateValidator(chainSpec),
 	)
 
 	return cmd
@@ -55,7 +55,7 @@ func Commands() *cobra.Command {
 // NewValidateDeposit creates a new command for validating a deposit message.
 //
 //nolint:mnd // lots of magic numbers
-func NewValidateDeposit() *cobra.Command {
+func NewValidateDeposit(chainSpec primitives.ChainSpec) *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "validate",
 		Short: "Validates a deposit message for creating a new validator",
@@ -65,7 +65,7 @@ func NewValidateDeposit() *cobra.Command {
 		withdrawal credentials, deposit amount, signature, current version,
 		and genesis validator root.`,
 		Args: cobra.ExactArgs(6),
-		RunE: validateDepositMessage,
+		RunE: validateDepositMessage(chainSpec),
 	}
 
 	return cmd
@@ -73,51 +73,52 @@ func NewValidateDeposit() *cobra.Command {
 
 // validateDepositMessage validates a deposit message for creating a new
 // validator.
-func validateDepositMessage(
+func validateDepositMessage(chainSpec primitives.ChainSpec) func(
 	_ *cobra.Command,
 	args []string,
 ) error {
-	pubkey, err := parser.ConvertPubkey(args[0])
-	if err != nil {
-		return err
-	}
+	return func(_ *cobra.Command, args []string) error {
+		pubkey, err := parser.ConvertPubkey(args[0])
+		if err != nil {
+			return err
+		}
 
-	credentials, err := parser.ConvertWithdrawalCredentials(args[1])
-	if err != nil {
-		return err
-	}
+		credentials, err := parser.ConvertWithdrawalCredentials(args[1])
+		if err != nil {
+			return err
+		}
 
-	amount, err := parser.ConvertAmount(args[2])
-	if err != nil {
-		return err
-	}
+		amount, err := parser.ConvertAmount(args[2])
+		if err != nil {
+			return err
+		}
 
-	signature, err := parser.ConvertSignature(args[3])
-	if err != nil {
-		return err
-	}
+		signature, err := parser.ConvertSignature(args[3])
+		if err != nil {
+			return err
+		}
 
-	currentVersion, err := parser.ConvertVersion(args[4])
-	if err != nil {
-		return err
-	}
+		currentVersion, err := parser.ConvertVersion(args[4])
+		if err != nil {
+			return err
+		}
 
-	genesisValidatorRoot, err := parser.ConvertGenesisValidatorRoot(args[5])
-	if err != nil {
-		return err
-	}
+		genesisValidatorRoot, err := parser.ConvertGenesisValidatorRoot(args[5])
+		if err != nil {
+			return err
+		}
 
-	depositMessage := types.DepositMessage{
-		Pubkey:      pubkey,
-		Credentials: credentials,
-		Amount:      amount,
-	}
+		depositMessage := types.DepositMessage{
+			Pubkey:      pubkey,
+			Credentials: credentials,
+			Amount:      amount,
+		}
 
-	return depositMessage.VerifyCreateValidator(
-		types.NewForkData(currentVersion, genesisValidatorRoot),
-		signature,
-		signer.BLSSigner{}.VerifySignature,
-		// TODO: needs to be configurable.
-		spec.LocalnetChainSpec().DomainTypeDeposit(),
-	)
+		return depositMessage.VerifyCreateValidator(
+			types.NewForkData(currentVersion, genesisValidatorRoot),
+			signature,
+			signer.BLSSigner{}.VerifySignature,
+			chainSpec.DomainTypeDeposit(),
+		)
+	}
 }
diff --git a/mod/node-builder/pkg/commands/root.go b/mod/node-builder/pkg/commands/root.go
index 4493ceef46..8c092000be 100644
--- a/mod/node-builder/pkg/commands/root.go
+++ b/mod/node-builder/pkg/commands/root.go
@@ -33,6 +33,7 @@ import (
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/commands/genesis"
 	"github.com/berachain/beacon-kit/mod/node-builder/pkg/commands/jwt"
 	beaconconfig "github.com/berachain/beacon-kit/mod/node-builder/pkg/config"
+	"github.com/berachain/beacon-kit/mod/primitives"
 	"github.com/cosmos/cosmos-sdk/client/keys"
 	"github.com/cosmos/cosmos-sdk/client/pruning"
 	"github.com/cosmos/cosmos-sdk/client/snapshot"
@@ -49,6 +50,7 @@ func DefaultRootCommandSetup[T servertypes.Application](
 	rootCmd *cobra.Command,
 	mm *module.Manager,
 	newApp servertypes.AppCreator[T],
+	chainSpec primitives.ChainSpec,
 ) {
 	// Add the ToS Flag to the root command.
 	beaconconfig.AddToSFlag(rootCmd)
@@ -73,7 +75,7 @@ func DefaultRootCommandSetup[T servertypes.Application](
 			genesis.AddPubkeyCmd(),
 			genesis.CollectValidatorsCmd(),
 		),
-		deposit.Commands(),
+		deposit.Commands(chainSpec),
 		// `jwt`
 		jwt.Commands(),
 		// `keys`