diff --git a/crates/op-rbuilder/Cargo.toml b/crates/op-rbuilder/Cargo.toml
index ac239f4bd..37d5855f1 100644
--- a/crates/op-rbuilder/Cargo.toml
+++ b/crates/op-rbuilder/Cargo.toml
@@ -160,7 +160,7 @@ custom-engine-api = []
 
 [[bin]]
 name = "op-rbuilder"
-path = "src/main.rs"
+path = "src/bin/op-rbuilder/main.rs"
 
 [[bin]]
 name = "tester"
diff --git a/crates/op-rbuilder/src/bin/op-rbuilder/main.rs b/crates/op-rbuilder/src/bin/op-rbuilder/main.rs
new file mode 100644
index 000000000..985b93c4e
--- /dev/null
+++ b/crates/op-rbuilder/src/bin/op-rbuilder/main.rs
@@ -0,0 +1,10 @@
+use op_rbuilder::launcher::launch;
+
+// Prefer jemalloc for performance reasons.
+#[cfg(all(feature = "jemalloc", unix))]
+#[global_allocator]
+static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
+
+fn main() -> eyre::Result<()> {
+    launch()
+}
diff --git a/crates/op-rbuilder/src/main.rs b/crates/op-rbuilder/src/launcher.rs
similarity index 88%
rename from crates/op-rbuilder/src/main.rs
rename to crates/op-rbuilder/src/launcher.rs
index 194958232..a8904ed81 100644
--- a/crates/op-rbuilder/src/main.rs
+++ b/crates/op-rbuilder/src/launcher.rs
@@ -1,24 +1,16 @@
-use args::*;
-use builders::{BuilderMode, FlashblocksBuilder, StandardBuilder};
 use eyre::Result;
 
-/// CLI argument parsing.
-pub mod args;
-mod builders;
-mod metrics;
-mod monitor_tx_pool;
-mod primitives;
-mod revert_protection;
-mod traits;
-mod tx;
-mod tx_signer;
-
-use builders::{BuilderConfig, PayloadBuilder};
+use crate::{
+    args::*,
+    builders::{BuilderConfig, BuilderMode, FlashblocksBuilder, PayloadBuilder, StandardBuilder},
+    metrics::VERSION,
+    monitor_tx_pool::monitor_tx_pool,
+    primitives::reth::engine_api_builder::OpEngineApiBuilder,
+    revert_protection::{EthApiExtServer, EthApiOverrideServer, RevertProtectionExt},
+    tx::FBPooledTransaction,
+};
 use core::fmt::Debug;
-use metrics::VERSION;
 use moka::future::Cache;
-use monitor_tx_pool::monitor_tx_pool;
-use primitives::reth::engine_api_builder::OpEngineApiBuilder;
 use reth::builder::{NodeBuilder, WithLaunchContext};
 use reth_cli_commands::launcher::Launcher;
 use reth_db::mdbx::DatabaseEnv;
@@ -29,16 +21,9 @@ use reth_optimism_node::{
     OpNode,
 };
 use reth_transaction_pool::TransactionPool;
-use revert_protection::{EthApiExtServer, EthApiOverrideServer, RevertProtectionExt};
 use std::{marker::PhantomData, sync::Arc};
-use tx::FBPooledTransaction;
-
-// Prefer jemalloc for performance reasons.
-#[cfg(all(feature = "jemalloc", unix))]
-#[global_allocator]
-static GLOBAL: tikv_jemallocator::Jemalloc = tikv_jemallocator::Jemalloc;
 
-fn main() -> Result<()> {
+pub fn launch() -> Result<()> {
     let cli = Cli::parsed();
     let mode = cli.builder_mode();
     let mut cli_app = cli.configure();
diff --git a/crates/op-rbuilder/src/lib.rs b/crates/op-rbuilder/src/lib.rs
index 2abc3a322..421220dac 100644
--- a/crates/op-rbuilder/src/lib.rs
+++ b/crates/op-rbuilder/src/lib.rs
@@ -6,3 +6,11 @@ pub mod tests;
 
 pub mod traits;
 pub mod tx;
+
+/// CLI argument parsing.
+pub mod args;
+mod builders;
+pub mod launcher;
+mod metrics;
+mod monitor_tx_pool;
+mod revert_protection;