diff --git a/Cargo.lock b/Cargo.lock
index 37f4acb..f9bf1be 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -922,6 +922,7 @@ version = "0.1.0"
 dependencies = [
  "cfgsync-artifacts",
  "cfgsync-core",
+ "serde",
  "thiserror 2.0.18",
 ]
 
@@ -954,6 +955,7 @@ name = "cfgsync-runtime"
 version = "0.1.0"
 dependencies = [
  "anyhow",
+ "cfgsync-adapter",
  "cfgsync-core",
  "clap",
  "serde",
diff --git a/cfgsync/adapter/Cargo.toml b/cfgsync/adapter/Cargo.toml
index 7a15ad1..bcc4da7 100644
--- a/cfgsync/adapter/Cargo.toml
+++ b/cfgsync/adapter/Cargo.toml
@@ -15,4 +15,5 @@ workspace = true
 [dependencies]
 cfgsync-artifacts = { workspace = true }
 cfgsync-core      = { workspace = true }
+serde             = { workspace = true }
 thiserror         = { workspace = true }
diff --git a/cfgsync/adapter/src/lib.rs b/cfgsync/adapter/src/lib.rs
index ff35b4e..d4da5ed 100644
--- a/cfgsync/adapter/src/lib.rs
+++ b/cfgsync/adapter/src/lib.rs
@@ -5,18 +5,19 @@ use cfgsync_core::{
     CfgSyncErrorResponse, CfgSyncPayload, ConfigProvider, NodeRegistration, RegistrationResponse,
     RepoResponse,
 };
+use serde::{Deserialize, Serialize};
 use thiserror::Error;
 
 /// Type-erased cfgsync adapter error used to preserve source context.
 pub type DynCfgsyncError = Box<dyn Error + Send + Sync + 'static>;
 
 /// Per-node rendered config output used to build cfgsync bundles.
-#[derive(Debug, Clone)]
+#[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct CfgsyncNodeConfig {
     /// Stable node identifier resolved by the adapter.
     pub identifier: String,
-    /// Serialized config payload for the node.
-    pub config_yaml: String,
+    /// Files served to the node after cfgsync registration.
+    pub files: Vec<ArtifactFile>,
 }
 
 /// Node artifacts produced by a cfgsync materializer.
@@ -260,7 +261,7 @@ fn build_node_entry<E: CfgsyncEnv>(
 
     Ok(CfgsyncNodeConfig {
         identifier: E::node_identifier(index, node),
-        config_yaml,
+        files: vec![ArtifactFile::new("/config.yaml", &config_yaml)],
     })
 }
 
@@ -278,11 +279,12 @@ fn build_rewritten_node_config<E: CfgsyncEnv>(
 }
 
 fn build_node_artifacts_from_config(config: &CfgsyncNodeConfig) -> CfgsyncNodeArtifacts {
-    CfgsyncNodeArtifacts::new(vec![ArtifactFile::new("/config.yaml", &config.config_yaml)])
+    CfgsyncNodeArtifacts::new(config.files.clone())
 }
 
 #[cfg(test)]
 mod tests {
+    use cfgsync_artifacts::ArtifactFile;
     use cfgsync_core::{CfgSyncErrorCode, ConfigProvider, NodeRegistration, RepoResponse};
 
     use super::{CfgsyncNodeCatalog, CfgsyncNodeConfig, MaterializingConfigProvider};
@@ -291,19 +293,19 @@ mod tests {
     fn catalog_resolves_identifier() {
         let catalog = CfgsyncNodeCatalog::new(vec![CfgsyncNodeConfig {
             identifier: "node-1".to_owned(),
-            config_yaml: "key: value".to_owned(),
+            files: vec![ArtifactFile::new("/config.yaml", "key: value")],
         }]);
 
         let node = catalog.resolve("node-1").expect("resolve node config");
 
-        assert_eq!(node.config_yaml, "key: value");
+        assert_eq!(node.files[0].content, "key: value");
     }
 
     #[test]
     fn materializing_provider_resolves_registered_node() {
         let catalog = CfgsyncNodeCatalog::new(vec![CfgsyncNodeConfig {
             identifier: "node-1".to_owned(),
-            config_yaml: "key: value".to_owned(),
+            files: vec![ArtifactFile::new("/config.yaml", "key: value")],
         }]);
         let provider = MaterializingConfigProvider::new(catalog);
         let registration = NodeRegistration {
@@ -323,7 +325,7 @@ mod tests {
     fn materializing_provider_reports_not_ready_before_registration() {
         let catalog = CfgsyncNodeCatalog::new(vec![CfgsyncNodeConfig {
             identifier: "node-1".to_owned(),
-            config_yaml: "key: value".to_owned(),
+            files: vec![ArtifactFile::new("/config.yaml", "key: value")],
         }]);
         let provider = MaterializingConfigProvider::new(catalog);
         let registration = NodeRegistration {
diff --git a/cfgsync/runtime/Cargo.toml b/cfgsync/runtime/Cargo.toml
index 045bc73..f708ba1 100644
--- a/cfgsync/runtime/Cargo.toml
+++ b/cfgsync/runtime/Cargo.toml
@@ -13,14 +13,15 @@ version     = { workspace = true }
 workspace = true
 
 [dependencies]
-anyhow       = "1"
-cfgsync-core = { workspace = true }
-clap         = { version = "4", features = ["derive"] }
-serde        = { workspace = true }
-serde_yaml   = { workspace = true }
-thiserror    = { workspace = true }
-tokio        = { default-features = false, features = ["macros", "net", "rt-multi-thread"], version = "1" }
-tracing      = { workspace = true }
+anyhow          = "1"
+cfgsync-adapter = { workspace = true }
+cfgsync-core    = { workspace = true }
+clap            = { version = "4", features = ["derive"] }
+serde           = { workspace = true }
+serde_yaml      = { workspace = true }
+thiserror       = { workspace = true }
+tokio           = { default-features = false, features = ["macros", "net", "rt-multi-thread"], version = "1" }
+tracing         = { workspace = true }
 
 [dev-dependencies]
 tempfile = { workspace = true }
diff --git a/cfgsync/runtime/src/server.rs b/cfgsync/runtime/src/server.rs
index a038a43..ba987f3 100644
--- a/cfgsync/runtime/src/server.rs
+++ b/cfgsync/runtime/src/server.rs
@@ -1,7 +1,8 @@
 use std::{fs, path::Path, sync::Arc};
 
 use anyhow::Context as _;
-use cfgsync_core::{CfgSyncState, ConfigProvider, FileConfigProvider, run_cfgsync};
+use cfgsync_adapter::{CfgsyncNodeCatalog, MaterializingConfigProvider};
+use cfgsync_core::{CfgSyncBundle, CfgSyncState, ConfigProvider, FileConfigProvider, run_cfgsync};
 use serde::Deserialize;
 
 /// Runtime cfgsync server config loaded from YAML.
@@ -9,6 +10,8 @@ use serde::Deserialize;
 pub struct CfgSyncServerConfig {
     pub port: u16,
     pub bundle_path: String,
+    #[serde(default)]
+    pub registration_flow: bool,
 }
 
 impl CfgSyncServerConfig {
@@ -22,13 +25,42 @@ impl CfgSyncServerConfig {
     }
 }
 
-fn load_bundle(bundle_path: &Path) -> anyhow::Result<Arc<dyn ConfigProvider>> {
+fn load_bundle_provider(bundle_path: &Path) -> anyhow::Result<Arc<dyn ConfigProvider>> {
     let provider = FileConfigProvider::from_yaml_file(bundle_path)
         .with_context(|| format!("loading cfgsync provider from {}", bundle_path.display()))?;
 
     Ok(Arc::new(provider))
 }
 
+fn load_materializing_provider(bundle_path: &Path) -> anyhow::Result<Arc<dyn ConfigProvider>> {
+    let bundle = load_bundle_yaml(bundle_path)?;
+    let catalog = build_node_catalog(bundle);
+    let provider = MaterializingConfigProvider::new(catalog);
+
+    Ok(Arc::new(provider))
+}
+
+fn load_bundle_yaml(bundle_path: &Path) -> anyhow::Result<CfgSyncBundle> {
+    let raw = fs::read_to_string(bundle_path)
+        .with_context(|| format!("reading cfgsync bundle from {}", bundle_path.display()))?;
+
+    serde_yaml::from_str(&raw)
+        .with_context(|| format!("parsing cfgsync bundle from {}", bundle_path.display()))
+}
+
+fn build_node_catalog(bundle: CfgSyncBundle) -> CfgsyncNodeCatalog {
+    let nodes = bundle
+        .nodes
+        .into_iter()
+        .map(|node| cfgsync_adapter::CfgsyncNodeConfig {
+            identifier: node.identifier,
+            files: node.files,
+        })
+        .collect();
+
+    CfgsyncNodeCatalog::new(nodes)
+}
+
 fn resolve_bundle_path(config_path: &Path, bundle_path: &str) -> std::path::PathBuf {
     let path = Path::new(bundle_path);
     if path.is_absolute() {
@@ -46,14 +78,21 @@ pub async fn run_cfgsync_server(config_path: &Path) -> anyhow::Result<()> {
     let config = CfgSyncServerConfig::load_from_file(config_path)?;
     let bundle_path = resolve_bundle_path(config_path, &config.bundle_path);
 
-    let state = build_server_state(&bundle_path)?;
+    let state = build_server_state(&config, &bundle_path)?;
     run_cfgsync(config.port, state).await?;
 
     Ok(())
 }
 
-fn build_server_state(bundle_path: &Path) -> anyhow::Result<CfgSyncState> {
-    let repo = load_bundle(bundle_path)?;
+fn build_server_state(
+    config: &CfgSyncServerConfig,
+    bundle_path: &Path,
+) -> anyhow::Result<CfgSyncState> {
+    let repo = if config.registration_flow {
+        load_materializing_provider(bundle_path)?
+    } else {
+        load_bundle_provider(bundle_path)?
+    };
 
     Ok(CfgSyncState::new(repo))
 }
diff --git a/logos/runtime/ext/src/cfgsync/mod.rs b/logos/runtime/ext/src/cfgsync/mod.rs
index 074223d..f607a9c 100644
--- a/logos/runtime/ext/src/cfgsync/mod.rs
+++ b/logos/runtime/ext/src/cfgsync/mod.rs
@@ -54,7 +54,7 @@ fn build_cfgsync_bundle<E: CfgsyncEnv>(
         .into_iter()
         .map(|node| CfgSyncBundleNode {
             identifier: node.identifier,
-            files: vec![build_bundle_file("/config.yaml", node.config_yaml)],
+            files: node.files,
         })
         .collect();
 
@@ -121,6 +121,11 @@ fn build_cfgsync_server_config() -> Value {
         Value::String("cfgsync.bundle.yaml".to_string()),
     );
 
+    root.insert(
+        Value::String("registration_flow".to_string()),
+        Value::Bool(true),
+    );
+
     Value::Mapping(root)
 }