diff --git a/crates/snm_shim/src/download.rs b/crates/snm_shim/src/download.rs
deleted file mode 100644
index 995a198f..00000000
--- a/crates/snm_shim/src/download.rs
+++ /dev/null
@@ -1,31 +0,0 @@
-use std::fs;
-
-use snm_atom::atom::AtomTrait;
-use snm_download_builder::{DownloadBuilder, WriteStrategy};
-use snm_utils::snm_error::SnmError;
-
-pub async fn download<T>(version: &str, manage: &T) -> Result<(), SnmError>
-where
-    T: AtomTrait,
-{
-    let download_url = manage.get_download_url(version);
-
-    let downloaded_file_path_buf = manage.get_downloaded_file_path_buf(version)?;
-
-    DownloadBuilder::new()
-        .retries(3)
-        .timeout(manage.get_snm_config().get_download_timeout_secs())
-        .write_strategy(WriteStrategy::Nothing)
-        .download(&download_url, &downloaded_file_path_buf)
-        .await?;
-
-    let runtime_dir_path_buf = manage.get_runtime_dir_path_buf(version)?;
-
-    manage.decompress_download_file(&downloaded_file_path_buf, &runtime_dir_path_buf)?;
-
-    if let Some(parent) = downloaded_file_path_buf.parent() {
-        fs::remove_dir_all(parent)?;
-    }
-
-    Ok(())
-}
diff --git a/crates/snm_shim/src/ensure_binary_path.rs b/crates/snm_shim/src/ensure_binary_path.rs
index df5ce92d..828feafd 100644
--- a/crates/snm_shim/src/ensure_binary_path.rs
+++ b/crates/snm_shim/src/ensure_binary_path.rs
@@ -1,10 +1,9 @@
-use std::ops::Not;
+use std::{fs, ops::Not};
 
 use snm_atom::atom::AtomTrait;
+use snm_download_builder::{DownloadBuilder, WriteStrategy};
 use snm_utils::snm_error::SnmError;
 
-use super::download::download;
-
 pub async fn ensure_binary_path<T>(manage: &T, version: &String) -> Result<String, SnmError>
 where
     T: AtomTrait,
@@ -26,3 +25,51 @@ where
 
     return Ok(binary);
 }
+
+pub async fn download<T>(version: &str, atom: &T) -> Result<(), SnmError>
+where
+    T: AtomTrait,
+{
+    let download_url = atom.get_download_url(version);
+
+    let downloaded_file_path_buf = atom.get_downloaded_file_path_buf(version)?;
+
+    DownloadBuilder::new()
+        .retries(3)
+        .timeout(atom.get_snm_config().get_download_timeout_secs())
+        .write_strategy(WriteStrategy::Nothing)
+        .download(&download_url, &downloaded_file_path_buf)
+        .await?;
+
+    let runtime_dir_path_buf = atom.get_runtime_dir_path_buf(version)?;
+
+    let expect = atom.get_expect_shasum(version).await?;
+
+    let actual = atom.get_actual_shasum(&downloaded_file_path_buf).await?;
+
+    if actual.is_none() || expect.is_none() {
+        fs::remove_file(&downloaded_file_path_buf)?;
+        return Err(SnmError::ShasumError {
+            file_path: downloaded_file_path_buf.display().to_string(),
+            expect: "None".to_string(),
+            actual: "None".to_string(),
+        });
+    }
+
+    if actual.eq(&expect).not() {
+        fs::remove_file(&downloaded_file_path_buf)?;
+        return Err(SnmError::ShasumError {
+            file_path: downloaded_file_path_buf.display().to_string(),
+            expect: expect.unwrap_or("None".to_string()),
+            actual: actual.unwrap_or("None".to_string()),
+        });
+    }
+
+    atom.decompress_download_file(&downloaded_file_path_buf, &runtime_dir_path_buf)?;
+
+    if let Some(parent) = downloaded_file_path_buf.parent() {
+        fs::remove_dir_all(parent)?;
+    }
+
+    Ok(())
+}
diff --git a/crates/snm_shim/src/lib.rs b/crates/snm_shim/src/lib.rs
index 70ffad6f..24e3c0f8 100644
--- a/crates/snm_shim/src/lib.rs
+++ b/crates/snm_shim/src/lib.rs
@@ -1,4 +1,3 @@
-mod download;
 mod ensure_binary_path;
 mod get_default_bin_dir;
 mod get_node_bin_dir;