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diff --git a/Cargo.toml b/Cargo.toml
index c15c686..bba9c1c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,7 +2,23 @@
 name = "harsh"
 version = "0.1.0"
 edition = "2018"
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+description = "Harmony server application"
 
 [dependencies]
+
+# async engine
+tokio = { version = "1.0", features = ["full"] }
+
+# http client
+axum = "0.3.2"
+
+# database
+sled = "0.34.7"
+
+# serialization
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0.68"
+
+# useful for logging
+chrono = "0.4"
+colored = "2.0.0"
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..d49c61b
--- /dev/null
+++ b/README.md
@@ -0,0 +1,7 @@
+# harsh
+
+![harsh icon](./assets/icon_256.png)
+
+## Description
+
+harsh is a Harmony server made in rust.
diff --git a/assets/icon_256.png b/assets/icon_256.png
new file mode 100644
index 0000000..5a1cd30
Binary files /dev/null and b/assets/icon_256.png differ
diff --git a/assets/icon_512.png b/assets/icon_512.png
new file mode 100644
index 0000000..5b09baa
Binary files /dev/null and b/assets/icon_512.png differ
diff --git a/src/lib/config.rs b/src/lib/config.rs
new file mode 100644
index 0000000..2cd08ea
--- /dev/null
+++ b/src/lib/config.rs
@@ -0,0 +1,13 @@
+///
+/// Encapsulate a configuration for the server
+///
+pub struct Configuration {
+	pub path: String, //
+}
+
+impl Configuration {
+	/// try to read the configuration from local file or load default
+	pub fn read() -> Self {
+		todo!()
+	}
+}
diff --git a/src/lib/database.rs b/src/lib/database.rs
new file mode 100644
index 0000000..e80892e
--- /dev/null
+++ b/src/lib/database.rs
@@ -0,0 +1,15 @@
+use super::config::Configuration;
+
+///
+/// handle the database access
+///
+pub struct DbManager {
+	//
+}
+
+impl DbManager {
+	/// constructor
+	pub fn new(_config: &Configuration) -> Self {
+		todo!()
+	}
+}
diff --git a/src/lib/harsh.rs b/src/lib/harsh.rs
new file mode 100644
index 0000000..92b6bda
--- /dev/null
+++ b/src/lib/harsh.rs
@@ -0,0 +1,14 @@
+use super::config::Configuration;
+use super::database::DbManager;
+use super::http::serve;
+use super::log::Logger;
+
+///
+/// main function
+///
+pub fn main() {
+	let configuration = Configuration::read();
+	Logger::configure(&configuration);
+	let mut db_manager = DbManager::new(&configuration);
+	serve(&configuration, &mut db_manager);
+}
diff --git a/src/lib/http.rs b/src/lib/http.rs
new file mode 100644
index 0000000..5da81d1
--- /dev/null
+++ b/src/lib/http.rs
@@ -0,0 +1,9 @@
+use super::config::Configuration;
+use super::database::DbManager;
+
+///
+/// listen for and handle received requests
+///
+pub fn serve(_config: &Configuration, _db_manager: &mut DbManager) {
+	todo!()
+}
diff --git a/src/lib/log.rs b/src/lib/log.rs
new file mode 100644
index 0000000..a8e5884
--- /dev/null
+++ b/src/lib/log.rs
@@ -0,0 +1,59 @@
+use std::cell::RefCell;
+
+use super::config::Configuration;
+use chrono::prelude::*;
+use colored::Colorize;
+
+///
+/// a static custom logger
+///
+pub struct Logger {
+	//
+}
+
+/// static Logger instance
+pub const LOGGER: RefCell<Logger> = RefCell::new(Logger {});
+
+impl Logger {
+	/// adapt the static instance according to parameters specified by the configuration
+	pub fn configure(_config: &Configuration) {
+		let refcell = LOGGER;
+		let _logger = refcell.try_borrow_mut().unwrap();
+		todo!()
+	}
+
+	fn log_info(&self, msg: String) {
+		let tag_section = "[info]".blue();
+		println!("{} {} {}", time_section(), tag_section, msg);
+	}
+
+	fn log_warn(&self, msg: String) {
+		let tag_section = "[warn]".yellow();
+		println!("{} {} {}", time_section(), tag_section, msg);
+	}
+
+	fn log_fail(&self, msg: String) {
+		let tag_section = "[fail]".red();
+		println!("{} {} {}", time_section(), tag_section, msg);
+	}
+}
+
+fn time_section() -> String {
+	let now = Local::now();
+	let result = now.format("[%Y.%m.%d-%H:%M:%S]").to_string();
+	result
+}
+
+pub mod shorthands {
+	pub fn log_info(msg: String) {
+		super::LOGGER.try_borrow().unwrap().log_info(msg);
+	}
+
+	pub fn log_warn(msg: String) {
+		super::LOGGER.try_borrow().unwrap().log_warn(msg);
+	}
+
+	pub fn log_fail(msg: String) {
+		super::LOGGER.try_borrow().unwrap().log_fail(msg);
+	}
+}
diff --git a/src/lib/mod.rs b/src/lib/mod.rs
new file mode 100644
index 0000000..4091b14
--- /dev/null
+++ b/src/lib/mod.rs
@@ -0,0 +1,5 @@
+pub mod config;
+pub mod database;
+pub mod harsh;
+pub mod http;
+pub mod log;
diff --git a/src/main.rs b/src/main.rs
index 731af3f..b17108b 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,3 +1,6 @@
-fn main() {
-    println!("Hello, harmony!");
+pub mod lib;
+
+pub fn main() {
+	println!("Hello, harmony!");
+	lib::harsh::main();
 }