diff --git a/.gitignore b/.gitignore
index dea4463..1ef7f5d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,4 +6,4 @@
 *.mp3
 *.mp4
 *.db
-*.log
\ No newline at end of file
+*.log*
\ No newline at end of file
diff --git a/Cargo.lock b/Cargo.lock
index 8a755c6..4789e0e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -235,6 +235,15 @@ version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "19d374276b40fb8bbdee95aef7c7fa6b5316ec764510eb64b8dd0e2ed0d7e7f5"
 
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "176dc175b78f56c0f321911d9c8eb2b77a78a4860b9c19db83835fea1a46649b"
+dependencies = [
+ "crossbeam-utils",
+]
+
 [[package]]
 name = "crossbeam-queue"
 version = "0.3.11"
@@ -306,6 +315,15 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "deranged"
+version = "0.3.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b42b6fa04a440b495c8b04d0e71b707c585f83cb9cb28cf8cd0d976c315e31b4"
+dependencies = [
+ "powerfmt",
+]
+
 [[package]]
 name = "derive_more"
 version = "0.99.17"
@@ -986,6 +1004,9 @@ dependencies = [
  "sqlx",
  "teloxide",
  "tokio",
+ "tracing",
+ "tracing-appender",
+ "tracing-subscriber",
  "url",
 ]
 
@@ -1028,6 +1049,16 @@ dependencies = [
  "minimal-lexical",
 ]
 
+[[package]]
+name = "nu-ansi-term"
+version = "0.46.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "77a8165726e8236064dbb45459242600304b42a5ea24ee2948e18e023bf7ba84"
+dependencies = [
+ "overload",
+ "winapi",
+]
+
 [[package]]
 name = "num-bigint-dig"
 version = "0.8.4"
@@ -1045,6 +1076,12 @@ dependencies = [
  "zeroize",
 ]
 
+[[package]]
+name = "num-conv"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+
 [[package]]
 name = "num-integer"
 version = "0.1.46"
@@ -1153,6 +1190,12 @@ dependencies = [
  "num-traits",
 ]
 
+[[package]]
+name = "overload"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b15813163c1d831bf4a13c3610c05c0d03b39feb07f7e09fa234dac9b15aaf39"
+
 [[package]]
 name = "parking_lot"
 version = "0.12.1"
@@ -1256,6 +1299,12 @@ version = "0.3.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "26072860ba924cbfa98ea39c8c19b4dd6a4a25423dbdf219c1eca91aa0cf6964"
 
+[[package]]
+name = "powerfmt"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "439ee305def115ba05938db6eb1644ff94165c5ab5e9420d1c1bcedbba909391"
+
 [[package]]
 name = "ppv-lite86"
 version = "0.2.17"
@@ -1606,6 +1655,15 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "sharded-slab"
+version = "0.1.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f40ca3c46823713e0d4209592e8d6e826aa57e928f09752619fc696c499637f6"
+dependencies = [
+ "lazy_static",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.1"
@@ -2070,6 +2128,47 @@ dependencies = [
  "syn 2.0.49",
 ]
 
+[[package]]
+name = "thread_local"
+version = "1.1.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b9ef9bad013ada3808854ceac7b46812a6465ba368859a37e2100283d2d719c"
+dependencies = [
+ "cfg-if",
+ "once_cell",
+]
+
+[[package]]
+name = "time"
+version = "0.3.34"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c8248b6521bb14bc45b4067159b9b6ad792e2d6d754d6c41fb50e29fefe38749"
+dependencies = [
+ "deranged",
+ "itoa",
+ "num-conv",
+ "powerfmt",
+ "serde",
+ "time-core",
+ "time-macros",
+]
+
+[[package]]
+name = "time-core"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
+
+[[package]]
+name = "time-macros"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7ba3a3ef41e6672a2f0f001392bb5dcd3ff0a9992d618ca761a11c3121547774"
+dependencies = [
+ "num-conv",
+ "time-core",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.6.0"
@@ -2157,17 +2256,28 @@ checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
 
 [[package]]
 name = "tracing"
-version = "0.1.37"
+version = "0.1.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ce8c33a8d48bd45d624a6e523445fd21ec13d3653cd51f681abf67418f54eb8"
+checksum = "c3523ab5a71916ccf420eebdf5521fcef02141234bbc0b8a49f2fdc4544364ef"
 dependencies = [
- "cfg-if",
  "log",
  "pin-project-lite",
  "tracing-attributes",
  "tracing-core",
 ]
 
+[[package]]
+name = "tracing-appender"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3566e8ce28cc0a3fe42519fc80e6b4c943cc4c8cef275620eb8dac2d3d4e06cf"
+dependencies = [
+ "crossbeam-channel",
+ "thiserror",
+ "time",
+ "tracing-subscriber",
+]
+
 [[package]]
 name = "tracing-attributes"
 version = "0.1.27"
@@ -2181,11 +2291,37 @@ dependencies = [
 
 [[package]]
 name = "tracing-core"
-version = "0.1.31"
+version = "0.1.32"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0955b8137a1df6f1a2e9a37d8a6656291ff0297c1a97c24e0d8425fe2312f79a"
+checksum = "c06d3da6113f116aaee68e4d601191614c9053067f9ab7f6edbcb161237daa54"
 dependencies = [
  "once_cell",
+ "valuable",
+]
+
+[[package]]
+name = "tracing-log"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ee855f1f400bd0e5c02d150ae5de3840039a3f54b025156404e34c23c03f47c3"
+dependencies = [
+ "log",
+ "once_cell",
+ "tracing-core",
+]
+
+[[package]]
+name = "tracing-subscriber"
+version = "0.3.18"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ad0f048c97dbd9faa9b7df56362b8ebcaa52adb06b498c050d2f4e32f90a7a8b"
+dependencies = [
+ "nu-ansi-term",
+ "sharded-slab",
+ "smallvec",
+ "thread_local",
+ "tracing-core",
+ "tracing-log",
 ]
 
 [[package]]
@@ -2269,6 +2405,12 @@ dependencies = [
  "getrandom",
 ]
 
+[[package]]
+name = "valuable"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "830b7e5d4d90034032940e4ace0d9a9a057e7a45cd94e6c007832e39edb82f6d"
+
 [[package]]
 name = "vcpkg"
 version = "0.2.15"
diff --git a/Cargo.toml b/Cargo.toml
index 886be79..506468a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -16,3 +16,6 @@ serde_json = "1.0.113"
 ordered-float = "4.2.0"
 regex = "1.10.3"
 url = "2.5.0"
+tracing = { version = "0.1.40", features = ["async-await"] }
+tracing-appender = "0.2.3"
+tracing-subscriber = "0.3.18"
diff --git a/src/bot.rs b/src/bot.rs
index 0701399..845cc5d 100644
--- a/src/bot.rs
+++ b/src/bot.rs
@@ -1,3 +1,4 @@
 pub mod bot;
+pub mod log;
 pub mod sanitize;
 pub mod util;
diff --git a/src/bot/bot.rs b/src/bot/bot.rs
index f5cd4ed..c1169a2 100644
--- a/src/bot/bot.rs
+++ b/src/bot/bot.rs
@@ -1,5 +1,7 @@
 use anyhow;
 use sqlx::migrate::MigrateDatabase;
+use sqlx::{Sqlite, SqlitePool};
+use tracing::{event, Level};
 use std::env;
 use std::fmt;
 use std::str;
@@ -10,8 +12,8 @@ use teloxide::dispatching::dialogue::InMemStorage;
 use teloxide::dispatching::UpdateHandler;
 use teloxide::types::InputFile;
 use teloxide::{prelude::*, update_listeners::Polling, utils::command::BotCommands};
-use sqlx::{Sqlite, SqlitePool};
 
+use super::log::log_init;
 use super::util::make_database_url;
 
 use crate::dl::delete_if_exists;
@@ -37,9 +39,14 @@ where
 }
 
 pub async fn bot_main() -> anyhow::Result<()> {
+    log_init();
+    event!(Level::INFO, "start");
+
     let db_url = make_database_url();
     if !Sqlite::database_exists(&db_url).await.unwrap_or(false) {
-        Sqlite::create_database(&db_url).await.expect("failed to create database");
+        Sqlite::create_database(&db_url)
+            .await
+            .expect("failed to create database");
     }
 
     let db = SqlitePool::connect(&db_url).await?;
diff --git a/src/bot/log.rs b/src/bot/log.rs
new file mode 100644
index 0000000..164ac10
--- /dev/null
+++ b/src/bot/log.rs
@@ -0,0 +1,29 @@
+use super::util::VAR_LOG;
+use tracing::subscriber::set_global_default;
+use tracing::Level;
+use tracing_appender::{
+    non_blocking,
+    rolling::{RollingFileAppender, Rotation},
+};
+use tracing_subscriber::layer::SubscriberExt;
+use tracing_subscriber::fmt;
+
+pub fn log_init() {
+    let file_appender = RollingFileAppender::builder()
+        .rotation(Rotation::DAILY)
+        .filename_prefix("mk-dl-bot.log")
+        .max_log_files(7)
+        .build(VAR_LOG)
+        .unwrap();
+
+    let (non_blocking, guard) = non_blocking(file_appender);
+    let file_layer = fmt::layer().with_ansi(true).with_writer(non_blocking);
+
+    let subscriber = fmt()
+        .with_ansi(true)
+        .with_max_level(Level::TRACE)
+        .pretty()
+        .finish()
+        .with(file_layer);
+    set_global_default(subscriber).expect("set_global_default subscriber");
+}
diff --git a/src/bot/util.rs b/src/bot/util.rs
index 3b99502..cfdd722 100644
--- a/src/bot/util.rs
+++ b/src/bot/util.rs
@@ -1,18 +1,27 @@
 use std::path::Path;
 
 #[cfg(debug_assertions)]
-const VAR_LIB: &str = ".";
+pub const VAR_LIB: &str = ".";
 
 #[cfg(not(debug_assertions))]
-const VAR_LIB: &str = "/var/lib/mk-dl-bot";
+pub const VAR_LIB: &str = "/var/lib/mk-dl-bot";
 
 #[cfg(debug_assertions)]
-const VAR_LOG: &str = ".";
+pub const VAR_LOG: &str = ".";
 
 #[cfg(not(debug_assertions))]
-const VAR_LOG: &str = "/var/log/mk-dl-bot";
+pub const VAR_LOG: &str = "/var/log/mk-dl-bot";
 
 pub fn make_database_url() -> String {
     let path = Path::new(VAR_LIB).join("mk-dl-bot.db");
     format!("sqlite://{}", path.as_os_str().to_str().unwrap()).to_string()
 }
+
+pub fn make_log_path() -> String {
+    Path::new(VAR_LOG)
+        .join("mk-dl-bot.log")
+        .as_os_str()
+        .to_str()
+        .unwrap()
+        .to_string()
+}