diff --git a/fire_seq_search_server/Cargo.toml b/fire_seq_search_server/Cargo.toml
index 3fd1101..e052d4f 100644
--- a/fire_seq_search_server/Cargo.toml
+++ b/fire_seq_search_server/Cargo.toml
@@ -47,7 +47,7 @@ stop-words = "0.7.2"
 
 regex = "1"
 lingua = { version = "1.4.0", default-features = false, features = ["chinese", "english"] }
-
+shellexpand = "3.1"
 
 #Highlight (Output)
 html-escape = "0.2.13"
@@ -63,6 +63,7 @@ pdf-extract-temporary-mitigation-panic = "0.7.1"
 
 
 # llm related
+# TODO I should make them optional
 sha256 = "1.5.0"
 reqwest = { version = "0.12", features = ["json"] }
 futures = "0.3"
diff --git a/fire_seq_search_server/src/local_llm/mod.rs b/fire_seq_search_server/src/local_llm/mod.rs
index 9ba88e1..0b15c9e 100644
--- a/fire_seq_search_server/src/local_llm/mod.rs
+++ b/fire_seq_search_server/src/local_llm/mod.rs
@@ -286,8 +286,8 @@ struct LlamaFileDef {
 }
 
 
+use shellexpand::tilde;
 async fn locate_llamafile() -> Option<String> {
-    // TODO
     let mut lf = LlamaFileDef {
         filename: "mistral-7b-instruct-v0.2.Q4_0.llamafile".to_owned(),
         filepath: None,
@@ -295,10 +295,8 @@ async fn locate_llamafile() -> Option<String> {
         download_link: "mistral-7b-instruct-v0.2.Q4_0.llamafile".to_owned(),
     };
 
-    // TODO hack in dev
-    //let lf_path = "/var/home/lizhenbo/Downloads/mistral-7b-instruct-v0.2.Q4_0.llamafile";
-    let lf_base = "/Users/zhenboli/.llamafile/";
-    let lf_path = lf_base.to_owned() + &lf.filename;
+    let lf_base = tilde("~/.llamafile/");
+    let lf_path = lf_base.to_string() + &lf.filename;
     lf.filepath = Some(  lf_path.to_owned() );
     info!("lf {:?}", &lf);