diff --git a/coordinator/src/main.rs b/coordinator/src/main.rs
index ea310d035..0dc79bd39 100644
--- a/coordinator/src/main.rs
+++ b/coordinator/src/main.rs
@@ -987,7 +987,10 @@ pub async fn handle_processors<D: Db, Pro: Processors, P: P2p>(
   mut new_tributary: broadcast::Receiver<ActiveTributary<D, P>>,
 ) {
   let mut channels = HashMap::new();
-  for network in [NetworkId::Bitcoin, NetworkId::Ethereum, NetworkId::Monero] {
+  for network in serai_client::primitives::NETWORKS {
+    if network == NetworkId::Serai {
+      continue;
+    }
     let (send, recv) = mpsc::unbounded_channel();
     tokio::spawn(handle_processor_messages(
       db.clone(),
diff --git a/message-queue/src/main.rs b/message-queue/src/main.rs
index f2ae69c4b..313fd979a 100644
--- a/message-queue/src/main.rs
+++ b/message-queue/src/main.rs
@@ -183,14 +183,14 @@ async fn main() {
     Some(<Ristretto as Ciphersuite>::G::from_bytes(&repr).unwrap())
   };
 
-  const ALL_EXT_NETWORKS: [NetworkId; 3] =
-    [NetworkId::Bitcoin, NetworkId::Ethereum, NetworkId::Monero];
-
   let register_service = |service, key| {
     (*KEYS).write().unwrap().insert(service, key);
     let mut queues = (*QUEUES).write().unwrap();
     if service == Service::Coordinator {
-      for network in ALL_EXT_NETWORKS {
+      for network in serai_primitives::NETWORKS {
+        if network == NetworkId::Serai {
+          continue;
+        }
         queues.insert(
           (service, Service::Processor(network)),
           RwLock::new(Queue(db.clone(), service, Service::Processor(network))),
@@ -205,7 +205,10 @@ async fn main() {
   };
 
   // Make queues for each NetworkId, other than Serai
-  for network in ALL_EXT_NETWORKS {
+  for network in serai_primitives::NETWORKS {
+    if network == NetworkId::Serai {
+      continue;
+    }
     // Use a match so we error if the list of NetworkIds changes
     let Some(key) = read_key(match network {
       NetworkId::Serai => unreachable!(),
diff --git a/substrate/client/tests/validator_sets.rs b/substrate/client/tests/validator_sets.rs
index 35b012f59..2a5c9068f 100644
--- a/substrate/client/tests/validator_sets.rs
+++ b/substrate/client/tests/validator_sets.rs
@@ -3,7 +3,7 @@ use rand_core::{RngCore, OsRng};
 use sp_core::{sr25519::Public, Pair};
 
 use serai_client::{
-  primitives::{NetworkId, insecure_pair_from_name},
+  primitives::{NETWORKS, NetworkId, insecure_pair_from_name},
   validator_sets::{
     primitives::{Session, ValidatorSet, musig_key},
     ValidatorSetsEvent,
@@ -38,7 +38,7 @@ serai_test!(
         .get_new_set_events(serai.get_block_by_number(0).await.unwrap().unwrap().hash())
         .await
         .unwrap(),
-      [NetworkId::Serai, NetworkId::Bitcoin, NetworkId::Ethereum, NetworkId::Monero]
+      NETWORKS
         .iter()
         .copied()
         .map(|network| ValidatorSetsEvent::NewSet {
diff --git a/substrate/node/src/chain_spec.rs b/substrate/node/src/chain_spec.rs
index a758b63be..32c32d035 100644
--- a/substrate/node/src/chain_spec.rs
+++ b/substrate/node/src/chain_spec.rs
@@ -56,8 +56,7 @@ fn testnet_genesis(
 
     validator_sets: ValidatorSetsConfig {
       stake: Amount(1_000_000 * 10_u64.pow(8)),
-      // TODO: Array of these in primitives
-      networks: vec![NetworkId::Serai, NetworkId::Bitcoin, NetworkId::Ethereum, NetworkId::Monero],
+      networks: serai_runtime::primitives::NETWORKS.to_vec(),
       participants: validators.iter().map(|name| account_from_name(name)).collect(),
     },
     session: SessionConfig { keys: validators.iter().map(|name| session_key(*name)).collect() },
diff --git a/substrate/primitives/src/networks.rs b/substrate/primitives/src/networks.rs
index 28b4c7dee..22c32ebe3 100644
--- a/substrate/primitives/src/networks.rs
+++ b/substrate/primitives/src/networks.rs
@@ -31,6 +31,9 @@ pub enum NetworkId {
   Monero,
 }
 
+pub const NETWORKS: [NetworkId; 4] =
+  [NetworkId::Serai, NetworkId::Bitcoin, NetworkId::Ethereum, NetworkId::Monero];
+
 /// The type used to identify coins.
 #[derive(
   Clone,
diff --git a/substrate/validator-sets/pallet/src/lib.rs b/substrate/validator-sets/pallet/src/lib.rs
index 6f4bba60e..fa20632f8 100644
--- a/substrate/validator-sets/pallet/src/lib.rs
+++ b/substrate/validator-sets/pallet/src/lib.rs
@@ -32,7 +32,7 @@ pub mod pallet {
     ///
     /// Every participant at genesis will automatically be assumed to have this much stake.
     /// This stake cannot be withdrawn however as there's no actual stake behind it.
-    // TODO: Localize stake to network?
+    // TODO: Localize stake to network
     pub stake: Amount,
     /// Networks to spawn Serai with.
     pub networks: Vec<NetworkId>,
@@ -572,9 +572,7 @@ pub mod pallet {
     }
 
     pub fn new_session() {
-      // TODO: Define an array of all networks in primitives
-      let networks = [NetworkId::Serai, NetworkId::Bitcoin, NetworkId::Ethereum, NetworkId::Monero];
-      for network in networks {
+      for network in serai_primitives::NETWORKS {
         let current_session = Self::session(network);
         // Only spawn a NewSet if the current set was actually established with a completed
         // handover protocol