diff --git a/backend/api_server/Cargo.toml b/backend/api_server/Cargo.toml
index bb2012c..09883f5 100644
--- a/backend/api_server/Cargo.toml
+++ b/backend/api_server/Cargo.toml
@@ -19,4 +19,5 @@ serde_json = "1.0.128"
 uuid = { version = "1.10.0", features = ["v4", "fast-rng", "serde"] }
 futures = { version = "0.3.30", features = ["executor"] }
 sha2 = "0.10.8"
-cron = "0.12.1"
\ No newline at end of file
+cron = "0.12.1"
+git2 = "0.19.0"
diff --git a/backend/api_server/src/blog/cron/check_update.rs b/backend/api_server/src/blog/cron/check_update.rs
new file mode 100644
index 0000000..f2fe6a9
--- /dev/null
+++ b/backend/api_server/src/blog/cron/check_update.rs
@@ -0,0 +1,24 @@
+use dirs::home_dir;
+use std::env;
+
+pub fn task() {
+    // get dir
+    let git_work_dir_path = &env::var("GIT_WORK_DIR").unwrap_or_else(|e| {
+        if let Ok(default_log_path) = env::var("WORK_DIR") {
+            if default_log_path.starts_with('~') {
+                let home_path = home_dir().unwrap_or_else(|| panic!("Cannot find home directory"));
+                home_path
+                    .join(default_log_path.strip_prefix("~/").unwrap())
+                    .into_os_string()
+                    .into_string()
+                    .expect(
+                        "[fatal] failed to parse env `WORK_DIR`, try to use absolute path instead",
+                    )
+            } else {
+                default_log_path
+            }
+        } else {
+            panic!("[fatal] failed to parse env `GIT_WORK_DIR`: {}", e);
+        }
+    });
+}
diff --git a/backend/api_server/src/blog/cron/mod.rs b/backend/api_server/src/blog/cron/mod.rs
new file mode 100644
index 0000000..be1305e
--- /dev/null
+++ b/backend/api_server/src/blog/cron/mod.rs
@@ -0,0 +1 @@
+pub mod check_update;
diff --git a/backend/api_server/src/blog/mod.rs b/backend/api_server/src/blog/mod.rs
index 06ac819..8b61780 100644
--- a/backend/api_server/src/blog/mod.rs
+++ b/backend/api_server/src/blog/mod.rs
@@ -1,4 +1,5 @@
 mod api;
+pub mod cron;
 
 use crate::blog::api::{
     get_page_count::get_page_count, get_post::get_post, get_post_list::get_post_list,
diff --git a/backend/api_server/src/init.rs b/backend/api_server/src/init.rs
index 809b977..73e53fd 100644
--- a/backend/api_server/src/init.rs
+++ b/backend/api_server/src/init.rs
@@ -1,11 +1,17 @@
-use std::env;
-
 use crate::logger;
+use std::{
+    backtrace::{Backtrace, BacktraceStatus},
+    env, panic,
+    panic::PanicHookInfo,
+};
+use tracing::{error, event, span, Level};
 
 use tracing_appender::non_blocking::WorkerGuard;
 
 pub fn logger_init() -> (WorkerGuard, WorkerGuard) {
-    logger::init()
+    let ret = logger::init();
+    panic::set_hook(Box::new(panic_hook));
+    ret
 }
 
 pub fn load_env() {
@@ -22,3 +28,29 @@ pub fn load_env() {
         println!("[info] no .env file referred, starting up")
     }
 }
+
+fn panic_hook(panic_info: &PanicHookInfo) {
+    let payload = panic_info.payload();
+    // panic_info.
+
+    let payload = if let Some(s) = payload.downcast_ref::<&str>() {
+        Some(&**s)
+    } else {
+        payload.downcast_ref::<String>().map(|s| s.as_str())
+    };
+
+    // let location = panic_info.location().map(|l| l.to_string());
+    //     let backtrace = Backtrace::capture();
+    //     let note = (backtrace.status() == BacktraceStatus::Disabled)
+    //         .then_some("run with RUST_BACKTRACE=1 environment variable to display a backtrace");
+    //     (Some(backtrace), note)
+    // };
+    //
+    // panic_info.
+
+    if let Some(location) = panic_info.location() {
+        eprintln!("err filename: {}", location.file())
+    }
+
+    event!(target: "test", Level::ERROR, "panic hook: {:?}", panic_info);
+}
diff --git a/backend/api_server/src/main.rs b/backend/api_server/src/main.rs
index 520be42..411e673 100644
--- a/backend/api_server/src/main.rs
+++ b/backend/api_server/src/main.rs
@@ -9,5 +9,12 @@ async fn main() {
     init::load_env();
     let _guards = init::logger_init();
 
-    server::start().await;
+    // panic!("test");
+
+    match server::start().await {
+        Ok(_) => {}
+        Err(e) => {
+            panic!("server start failed: {}", e);
+        }
+    };
 }
diff --git a/backend/api_server/src/scheduler/mod.rs b/backend/api_server/src/scheduler/mod.rs
index 21678f4..08f018c 100644
--- a/backend/api_server/src/scheduler/mod.rs
+++ b/backend/api_server/src/scheduler/mod.rs
@@ -156,6 +156,10 @@ impl Scheduler {
         self.tasks.write()?.insert(id, Arc::new(task));
         Ok(id)
     }
+
+    pub fn new() -> Self {
+        Self::default()
+    }
 }
 
 #[cfg(test)]
diff --git a/backend/api_server/src/scheduler/tasks/basic.rs b/backend/api_server/src/scheduler/tasks/basic.rs
index 0318899..71fc3a6 100644
--- a/backend/api_server/src/scheduler/tasks/basic.rs
+++ b/backend/api_server/src/scheduler/tasks/basic.rs
@@ -11,12 +11,19 @@ pub struct BasicTask {
 }
 
 impl BasicTask {
-    pub fn new(func: fn(), cron_expr: &str) -> Result<Self, Box<dyn Error>> {
+    pub fn new<F>(func: F, cron_expr: &str) -> Result<Self, Box<dyn Error>>
+    where
+        F: TaskFunc,
+    {
         Ok(BasicTask {
             schedule: Schedule::from_str(cron_expr)?,
             func: Box::new(func),
         })
     }
+
+    pub fn to_task(self) -> Box<dyn Task> {
+        Box::new(self)
+    }
 }
 
 impl Task for BasicTask {
diff --git a/backend/api_server/src/server.rs b/backend/api_server/src/server.rs
index e23e63b..6dfb8e8 100644
--- a/backend/api_server/src/server.rs
+++ b/backend/api_server/src/server.rs
@@ -1,9 +1,12 @@
 use std::env;
+use std::error::Error;
 use std::num::ParseIntError;
 use std::process::exit;
 use std::str::FromStr;
 
 use crate::blog;
+use crate::scheduler::tasks::basic::BasicTask;
+use crate::scheduler::Scheduler;
 use axum::Router;
 use sqlx::{
     postgres::{PgConnectOptions, PgPoolOptions},
@@ -11,7 +14,7 @@ use sqlx::{
 };
 use tracing::{error, info, warn};
 
-pub async fn start() {
+pub async fn start() -> Result<(), Box<dyn Error>> {
     let port: u32 = match env::var("BACKEND_PORT") {
         Ok(value) => value.parse().unwrap_or_else(|e: ParseIntError| {
             warn!("failed to parse BACKEND_PORT: {}", e.to_string());
@@ -35,6 +38,18 @@ pub async fn start() {
         }
     };
 
+    // cron task
+    let scheduler = Scheduler::new();
+    let test_str = "hello world".to_string();
+    // scheduler.insert(
+    //     BasicTask::new(
+    //         move || blog::cron::check_update::task(test_str.clone()),
+    //         "* * * * * *",
+    //     )?
+    //     .to_task(),
+    // )?;
+
+    // http server
     let app = Router::new()
         .nest("blog", blog::get_router())
         .with_state(db_pool);
@@ -50,6 +65,7 @@ pub async fn start() {
         error!("failed to start axum: {}", e.to_string());
         exit(1);
     });
+    Ok(())
 }
 
 fn parse_db_uri() -> String {
diff --git a/backend/markdown/Cargo.toml b/backend/markdown/Cargo.toml
index 896c0c8..0d0b372 100644
--- a/backend/markdown/Cargo.toml
+++ b/backend/markdown/Cargo.toml
@@ -9,6 +9,6 @@ chrono = { version = "0.4.38", features = ["serde", "alloc"] }
 serde = { version = "1.0.209", features = ["derive"] }
 serde_json = "1.0.128"
 regex = "1.10.4"
-yaml-rust2 = "0.8.1"
+yaml-rust2 = "0.9.0"
 sha2 = "0.10.8"
 base64 = "0.22.1"
diff --git a/backend/markdown/src/utils/front_matter.rs b/backend/markdown/src/utils/front_matter.rs
index 5bca291..f38f029 100644
--- a/backend/markdown/src/utils/front_matter.rs
+++ b/backend/markdown/src/utils/front_matter.rs
@@ -60,7 +60,7 @@ tags: [ "test1", "test2" ]
 
     #[test]
     fn test_front_matter_parser() {
-        parse_front_matter(
+        dbg!(parse_front_matter(
             r##"---
 title: test_title
 date: 0000-00-00+0000
@@ -71,7 +71,7 @@ summary: summary
 tags: [ "test1", "test2" ]
 ---
 "##,
-        )
+        ))
         .expect("Failed to parse front matter");
     }
 }