diff --git a/crates/cli/src/docker_init.rs b/crates/cli/src/docker_init.rs
index 5d25736..98acdae 100644
--- a/crates/cli/src/docker_init.rs
+++ b/crates/cli/src/docker_init.rs
@@ -88,7 +88,7 @@ pub async fn handle_docker_init(config_path: String, output_dir: String) -> Resu
 
     let mut warnings = Vec::new();
 
-    let mut needs_signer_module = cb_config.pbs.with_signer;
+    let mut needs_signer_module = cb_config.pbs_modules[0].with_signer;
 
     // setup modules
     if let Some(modules_config) = cb_config.modules {
@@ -267,13 +267,13 @@ pub async fn handle_docker_init(config_path: String, output_dir: String) -> Resu
 
     // ports
     let host_endpoint =
-        SocketAddr::from((cb_config.pbs.pbs_config.host, cb_config.pbs.pbs_config.port));
-    let ports = Ports::Short(vec![format!("{}:{}", host_endpoint, cb_config.pbs.pbs_config.port)]);
-    warnings.push(format!("pbs has an exported port on {}", cb_config.pbs.pbs_config.port));
+        SocketAddr::from((cb_config.pbs_modules[0].pbs_config.host, cb_config.pbs_modules[0].pbs_config.port));
+    let ports = Ports::Short(vec![format!("{}:{}", host_endpoint, cb_config.pbs_modules[0].pbs_config.port)]);
+    warnings.push(format!("pbs has an exported port on {}", cb_config.pbs_modules[0].pbs_config.port));
 
     // inside the container expose on 0.0.0.0
     let container_endpoint =
-        SocketAddr::from((Ipv4Addr::UNSPECIFIED, cb_config.pbs.pbs_config.port));
+        SocketAddr::from((Ipv4Addr::UNSPECIFIED, cb_config.pbs_modules[0].pbs_config.port));
     let (key, val) = get_env_val(PBS_ENDPOINT_ENV, &container_endpoint.to_string());
     pbs_envs.insert(key, val);
 
@@ -290,7 +290,7 @@ pub async fn handle_docker_init(config_path: String, output_dir: String) -> Resu
 
     let pbs_service = Service {
         container_name: Some("cb_pbs".to_owned()),
-        image: Some(cb_config.pbs.docker_image),
+        image: Some(cb_config.pbs_modules[0].docker_image.clone()),
         ports,
         networks: pbs_networs,
         volumes: pbs_volumes,
@@ -298,7 +298,7 @@ pub async fn handle_docker_init(config_path: String, output_dir: String) -> Resu
         healthcheck: Some(Healthcheck {
             test: Some(HealthcheckTest::Single(format!(
                 "curl -f http://localhost:{}{}{}",
-                cb_config.pbs.pbs_config.port, BUILDER_API_PATH, GET_STATUS_PATH
+                cb_config.pbs_modules[0].pbs_config.port, BUILDER_API_PATH, GET_STATUS_PATH
             ))),
             interval: Some("30s".into()),
             timeout: Some("5s".into()),
diff --git a/crates/common/src/config/mod.rs b/crates/common/src/config/mod.rs
index b097d02..82ebc4a 100644
--- a/crates/common/src/config/mod.rs
+++ b/crates/common/src/config/mod.rs
@@ -27,7 +27,7 @@ pub use utils::*;
 pub struct CommitBoostConfig {
     pub chain: Chain,
     pub relays: Vec<RelayConfig>,
-    pub pbs: StaticPbsConfig,
+    pub pbs_modules: Vec<StaticPbsConfig>,
     #[serde(flatten)]
     pub muxes: Option<PbsMuxes>,
     pub modules: Option<Vec<StaticModuleConfig>>,
@@ -39,7 +39,7 @@ pub struct CommitBoostConfig {
 impl CommitBoostConfig {
     /// Validate config
     pub async fn validate(&self) -> Result<()> {
-        self.pbs.pbs_config.validate(self.chain).await?;
+        self.pbs_modules[0].pbs_config.validate(self.chain).await?;
         Ok(())
     }
 
@@ -74,7 +74,7 @@ impl CommitBoostConfig {
         let config = CommitBoostConfig {
             chain,
             relays: helper_config.relays,
-            pbs: helper_config.pbs,
+            pbs_modules: vec![helper_config.pbs],
             muxes: helper_config.muxes,
             modules: helper_config.modules,
             signer: helper_config.signer,
diff --git a/crates/common/src/config/mux.rs b/crates/common/src/config/mux.rs
index 32ff8e9..4b3a1fb 100644
--- a/crates/common/src/config/mux.rs
+++ b/crates/common/src/config/mux.rs
@@ -1,3 +1,5 @@
+pub use crate::config::module::{StaticModuleConfig};
+
 use std::{
     collections::{HashMap, HashSet},
     path::{Path, PathBuf},
@@ -108,6 +110,8 @@ pub struct MuxConfig {
     pub id: String,
     /// Relays to use for this mux config
     pub relays: Vec<RelayConfig>,
+    /// PBS Modules to use for this mux config
+    pub modules: Vec<StaticModuleConfig>,
     /// Which validator pubkeys to match against this mux config
     #[serde(default)]
     pub validator_pubkeys: Vec<BlsPublicKey>,
@@ -121,6 +125,7 @@ impl MuxConfig {
     /// Returns the env, actual path, and internal path to use for the file
     /// loader
     pub fn loader_env(&self) -> Option<(String, String, String)> {
+
         self.loader.as_ref().and_then(|loader| match loader {
             MuxKeysLoader::File(path_buf) => {
                 let path =
diff --git a/crates/common/src/config/pbs.rs b/crates/common/src/config/pbs.rs
index 5e42b6c..08ca48d 100644
--- a/crates/common/src/config/pbs.rs
+++ b/crates/common/src/config/pbs.rs
@@ -198,12 +198,12 @@ pub async fn load_pbs_config() -> Result<PbsModuleConfig> {
     let endpoint = if let Some(endpoint) = load_optional_env_var(PBS_ENDPOINT_ENV) {
         endpoint.parse()?
     } else {
-        SocketAddr::from((config.pbs.pbs_config.host, config.pbs.pbs_config.port))
+        SocketAddr::from((config.pbs_modules[0].pbs_config.host, config.pbs_modules[0].pbs_config.port))
     };
 
     let muxes = match config.muxes {
         Some(muxes) => {
-            let mux_configs = muxes.validate_and_fill(config.chain, &config.pbs.pbs_config).await?;
+            let mux_configs = muxes.validate_and_fill(config.chain, &config.pbs_modules[0].pbs_config).await?;
             Some(mux_configs)
         }
         None => None,
@@ -235,7 +235,7 @@ pub async fn load_pbs_config() -> Result<PbsModuleConfig> {
     Ok(PbsModuleConfig {
         chain: config.chain,
         endpoint,
-        pbs_config: Arc::new(config.pbs.pbs_config),
+        pbs_config: Arc::new(config.pbs_modules[0].pbs_config.clone()),
         relays: relay_clients,
         all_relays,
         signer_client: None,