diff --git a/waku/factory/conf_builder/conf_builder.nim b/waku/factory/conf_builder/conf_builder.nim
index 9b7f44ada..41e922e3d 100644
--- a/waku/factory/conf_builder/conf_builder.nim
+++ b/waku/factory/conf_builder/conf_builder.nim
@@ -8,10 +8,11 @@ import
   ./discv5_conf_builder,
   ./web_socket_conf_builder,
   ./metrics_server_conf_builder,
-  ./rln_relay_conf_builder
+  ./rln_relay_conf_builder,
+  ./mix_conf_builder
 
 export
   waku_conf_builder, filter_service_conf_builder, store_sync_conf_builder,
   store_service_conf_builder, rest_server_conf_builder, dns_discovery_conf_builder,
   discv5_conf_builder, web_socket_conf_builder, metrics_server_conf_builder,
-  rln_relay_conf_builder
+  rln_relay_conf_builder, mix_conf_builder
diff --git a/waku/factory/conf_builder/mix_conf_builder.nim b/waku/factory/conf_builder/mix_conf_builder.nim
new file mode 100644
index 000000000..d76e8bef6
--- /dev/null
+++ b/waku/factory/conf_builder/mix_conf_builder.nim
@@ -0,0 +1,38 @@
+import chronicles, std/options, results
+import libp2p/crypto/crypto, libp2p/crypto/curve25519, mix/curve25519
+import ../waku_conf
+
+logScope:
+  topics = "waku conf builder mix"
+
+##################################
+## Mix Config Builder ##
+##################################
+type MixConfBuilder* = object
+  enabled*: Option[bool]
+  mixKey*: Option[string]
+
+proc init*(T: type MixConfBuilder): MixConfBuilder =
+  MixConfBuilder()
+
+proc withEnabled*(b: var MixConfBuilder, enabled: bool) =
+  b.enabled = some(enabled)
+
+proc withMixKey*(b: var MixConfBuilder, mixKey: string) =
+  b.mixKey = some(mixKey)
+
+proc build*(b: MixConfBuilder): Result[Option[MixConf], string] =
+  if not b.enabled.get(false):
+    return ok(none[MixConf]())
+  else:
+    if b.mixKey.isSome():
+      let mixPrivKey = intoCurve25519Key(ncrutils.fromHex(b.mixKey.get()))
+      let mixPubKey = public(mixPrivKey)
+      return ok(some(MixConf(mixKey: mixPrivKey, mixPubKey: mixPubKey)))
+    else:
+      # Generate a new key pair if not provided
+      let keyPairResult = generateKeyPair()
+      if keyPairResult.isErr:
+        return err("Generate key pair error: " & $keyPairResult.error)
+      let (mixPrivKey, mixPubKey) = keyPairResult.get()
+      return ok(some(MixConf(mixKey: mixPrivKey, mixPubKey: mixPubKey)))
diff --git a/waku/factory/conf_builder/waku_conf_builder.nim b/waku/factory/conf_builder/waku_conf_builder.nim
index 46e303e70..d6494732d 100644
--- a/waku/factory/conf_builder/waku_conf_builder.nim
+++ b/waku/factory/conf_builder/waku_conf_builder.nim
@@ -23,7 +23,8 @@ import
   ./discv5_conf_builder,
   ./web_socket_conf_builder,
   ./metrics_server_conf_builder,
-  ./rln_relay_conf_builder
+  ./rln_relay_conf_builder,
+  ./mix_conf_builder
 
 logScope:
   topics = "waku conf builder"
@@ -72,6 +73,7 @@ type WakuConfBuilder* = object
   restServerConf*: RestServerConfBuilder
   rlnRelayConf*: RlnRelayConfBuilder
   storeServiceConf*: StoreServiceConfBuilder
+  mixConf*: MixConfBuilder
   webSocketConf*: WebSocketConfBuilder
   # End conf builders
   relay: Option[bool]
@@ -79,6 +81,7 @@ type WakuConfBuilder* = object
   peerExchange: Option[bool]
   storeSync: Option[bool]
   relayPeerExchange: Option[bool]
+  mix: Option[bool]
 
   # TODO: move within a relayConf
   rendezvous: Option[bool]
@@ -273,6 +276,9 @@ proc withMaxMessageSize*(builder: var WakuConfBuilder, maxMessageSize: string) =
 proc withStaticNodes*(builder: var WakuConfBuilder, staticNodes: seq[string]) =
   builder.staticNodes = concat(builder.staticNodes, staticNodes)
 
+proc withMix*(builder: var WakuConfBuilder, mix: bool) =
+  builder.mix = some(mix)
+
 proc nodeKey(
     builder: WakuConfBuilder, rng: ref HmacDrbgContext
 ): Result[crypto.PrivateKey, string] =
@@ -402,6 +408,13 @@ proc build*(
       warn "whether to mount rendezvous is not specified, defaulting to not mounting"
       false
 
+  let mix =
+    if builder.mix.isSome():
+      builder.mix.get()
+    else:
+      warn "whether to mount mix is not specified, defaulting to not mounting"
+      false
+
   let relayPeerExchange = builder.relayPeerExchange.get(false)
 
   let nodeKey = ?nodeKey(builder, rng)
@@ -467,6 +480,9 @@ proc build*(
   let storeServiceConf = builder.storeServiceConf.build().valueOr:
     return err("Store Conf building failed: " & $error)
 
+  let mixConf = builder.mixConf.build().valueOr:
+    return err("Mix Conf building failed: " & $error)
+
   let webSocketConf = builder.webSocketConf.build().valueOr:
     return err("WebSocket Conf building failed: " & $error)
   # End - Build sub-configs
@@ -574,6 +590,7 @@ proc build*(
     store = storeServiceConf.isSome,
     relay = relay,
     sync = storeServiceConf.isSome() and storeServiceConf.get().storeSyncConf.isSome,
+    mix = mix,
   )
 
   let wakuConf = WakuConf(
@@ -585,6 +602,7 @@ proc build*(
     metricsServerConf: metricsServerConf,
     restServerConf: restServerConf,
     dnsDiscoveryConf: dnsDiscoveryConf,
+    mixConf: mixConf,
     # end confs
     nodeKey: nodeKey,
     clusterId: clusterId,
diff --git a/waku/factory/external_config.nim b/waku/factory/external_config.nim
index 8a61d89bb..d4a342671 100644
--- a/waku/factory/external_config.nim
+++ b/waku/factory/external_config.nim
@@ -638,13 +638,6 @@ with the drawback of consuming some more bandwidth.""",
     mixkey* {.desc: "ED25519 private key as 64 char hex string.", name: "mixkey".}:
       Option[string]
 
-    #TODO: Temp config for simulations.Ideally need to get this info from bootstrap ENRs
-    #[     mixBootstrapNodes* {. 
-      desc:
-        "Text-encoded data for mix bootstrap node. Encoded in the format Multiaddress:libp2pPubKey:MixPubKey. Argument may be repeated.",
-      name: "mix-bootstrap-node"
-    .}: seq[string] ]#
-
     ## websocket config
     websocketSupport* {.
       desc: "Enable websocket:  true|false",
@@ -997,6 +990,10 @@ proc toWakuConf*(n: WakuNodeConf): ConfResult[WakuConf] =
   b.storeServiceConf.storeSyncConf.withRangeSec(n.storeSyncRange)
   b.storeServiceConf.storeSyncConf.withRelayJitterSec(n.storeSyncRelayJitter)
 
+  b.mixConf.withEnabled(n.mix)
+  if n.mixkey.isSome():
+    b.mixConf.withMixKey(n.mixkey.get())
+
   b.filterServiceConf.withEnabled(n.filter)
   b.filterServiceConf.withSubscriptionTimeout(n.filterSubscriptionTimeout)
   b.filterServiceConf.withMaxPeersToServe(n.filterMaxPeersToServe)
diff --git a/waku/factory/internal_config.nim b/waku/factory/internal_config.nim
index d060be24a..4fdc61f08 100644
--- a/waku/factory/internal_config.nim
+++ b/waku/factory/internal_config.nim
@@ -11,12 +11,13 @@ import
   ../common/utils/nat,
   ../node/net_config,
   ../waku_enr,
+  ../waku_enr/mix,
   ../waku_core,
   ./waku_conf,
   ./networks_config
 
 proc enrConfiguration*(
-    conf: WakuConf, netConfig: NetConfig, mixPubKey: Option[Curve25519Key]
+    conf: WakuConf, netConfig: NetConfig
 ): Result[enr.Record, string] =
   var enrBuilder = EnrBuilder.init(conf.nodeKey)
 
@@ -34,8 +35,8 @@ proc enrConfiguration*(
   ).isOkOr:
     return err("could not initialize ENR with shards")
 
-  if conf.mix and mixPubKey.isSome():
-    enrBuilder.withMixKey(mixPubKey.get())
+  if conf.mixConf.isSome():
+    enrBuilder.withMixKey(conf.mixConf.get().mixPubKey)
 
   let recordRes = enrBuilder.build()
   let record =
diff --git a/waku/factory/node_factory.nim b/waku/factory/node_factory.nim
index fe3252501..9c3818784 100644
--- a/waku/factory/node_factory.nim
+++ b/waku/factory/node_factory.nim
@@ -37,8 +37,7 @@ import
   ../node/peer_manager/peer_store/migrations as peer_store_sqlite_migrations,
   ../waku_lightpush_legacy/common,
   ../common/rate_limit/setting,
-  ../common/databases/dburl,
-  mix/curve25519
+  ../common/databases/dburl
 
 ## Peer persistence
 
@@ -147,7 +146,7 @@ proc getAutoshards*(
   return ok(autoshards)
 
 proc setupProtocols(
-    node: WakuNode, conf: WakuConf, mixPrivKey: Curve25519Key
+    node: WakuNode, conf: WakuConf
 ): Future[Result[void, string]] {.async.} =
   ## Setup configured protocols on an existing Waku v2 node.
   ## Optionally include persistent message storage.
@@ -418,8 +417,8 @@ proc setupProtocols(
         err("failed to set node waku peer-exchange peer: " & peerExchangeNode.error)
 
   #mount mix
-  if conf.mix:
-    (await node.mountMix(conf.clusterId, mixPrivKey)).isOkOr:
+  if conf.mixConf.isSome():
+    (await node.mountMix(conf.clusterId, conf.mixConf.get().mixKey)).isOkOr:
       return err("failed to mount waku mix protocol: " & $error)
   return ok()
 
@@ -481,18 +480,6 @@ proc startNode*(
 proc setupNode*(
     wakuConf: WakuConf, rng: ref HmacDrbgContext = crypto.newRng(), relay: Relay
 ): Result[WakuNode, string] =
-  var mixPubKey, mixPrivKey: Curve25519Key
-  if conf.mix:
-    if conf.mixKey.isSome():
-      mixPrivKey = intoCurve25519Key(ncrutils.fromHex(conf.mixKey.get()))
-      mixPubKey = public(mixPrivKey)
-    else:
-      warn "missing mix key, generating new"
-      let keyPairResult = generateKeyPair()
-      if keyPairResult.isErr:
-        return err("Generate key pair error: " & $keyPairResult.error)
-      (mixPrivKey, mixPubKey) = keyPairResult.get()
-
   let netConfig = networkConfiguration(
     wakuConf.clusterId, wakuConf.networkConf, wakuConf.discv5Conf,
     wakuConf.webSocketConf, wakuConf.wakuFlags, wakuConf.dnsAddrsNameServers,
@@ -501,7 +488,7 @@ proc setupNode*(
     error "failed to create internal config", error = error
     return err("failed to create internal config: " & error)
 
-  let record = enrConfiguration(wakuConf, netConfig, some(mixPubKey)).valueOr:
+  let record = enrConfiguration(wakuConf, netConfig).valueOr:
     error "failed to create record", error = error
     return err("failed to create record: " & error)
 
@@ -527,7 +514,7 @@ proc setupNode*(
   debug "Mounting protocols"
 
   try:
-    (waitFor node.setupProtocols(wakuConf, mixPrivKey)).isOkOr:
+    (waitFor node.setupProtocols(wakuConf)).isOkOr:
       error "Mounting protocols failed", error = error
       return err("Mounting protocols failed: " & error)
   except CatchableError:
diff --git a/waku/factory/waku.nim b/waku/factory/waku.nim
index bcbaa57fb..e1ed6e47d 100644
--- a/waku/factory/waku.nim
+++ b/waku/factory/waku.nim
@@ -267,7 +267,7 @@ proc getRunningNetConfig(waku: ptr Waku): Result[NetConfig, string] =
 proc updateEnr(waku: ptr Waku): Result[void, string] =
   let netConf: NetConfig = getRunningNetConfig(waku).valueOr:
     return err("error calling updateNetConfig: " & $error)
-  let record = enrConfiguration(waku[].conf, netConf, none(Curve25519Key)).valueOr:
+  let record = enrConfiguration(waku[].conf, netConf).valueOr:
     return err("ENR setup failed: " & error)
 
   if isClusterMismatched(record, waku[].conf.clusterId):
diff --git a/waku/factory/waku_conf.nim b/waku/factory/waku_conf.nim
index caf925ff2..7174530ba 100644
--- a/waku/factory/waku_conf.nim
+++ b/waku/factory/waku_conf.nim
@@ -3,6 +3,7 @@ import
   chronicles,
   libp2p/crypto/crypto,
   libp2p/multiaddress,
+  libp2p/crypto/curve25519,
   secp256k1,
   results
 
@@ -35,6 +36,10 @@ type StoreSyncConf* {.requiresInit.} = object
   intervalSec*: uint32
   relayJitterSec*: uint32
 
+type MixConf* = ref object
+  mixKey*: Curve25519Key
+  mixPubKey*: Curve25519Key
+
 type StoreServiceConf* {.requiresInit.} = object
   dbMigration*: bool
   dbURl*: string
@@ -93,6 +98,7 @@ type WakuConf* {.requiresInit.} = ref object
   restServerConf*: Option[RestServerConf]
   metricsServerConf*: Option[MetricsServerConf]
   webSocketConf*: Option[WebSocketConf]
+  mixConf*: Option[MixConf]
 
   portsShift*: uint16
   dnsAddrsNameServers*: seq[IpAddress]