diff --git a/README.md b/README.md
index de63206..6ed82d8 100644
--- a/README.md
+++ b/README.md
@@ -6,106 +6,29 @@ This repository contains the backend and frontend setup for the Auction System.
 
 The backend consists of a Docker configuration file (`docker-compose.yml`) and a migration script that needs to be run during the first-time setup.
 
-### Docker Configuration
+### Built With
+- (Node.js)[https://nodejs.org/]
+- (Express)[https://expressjs.com/]
+- (TypeScript)[https://www.typescriptlang.org/]
+- (TypeORM)[https://typeorm.io/]
+- (PostgreSQL)[https://www.postgresql.org/]
 
-The backend is composed of two services: `postgres` and `web`.
+### Guide
+You can find full guide for the backend setup in the [Backend Readme](./backend/readme.md)
 
-#### Postgres Service
-
-- Image: postgres:10.7
-- Environment variables:
-  - POSTGRES_USER: testuser
-  - POSTGRES_PASSWORD: testpass
-  - POSTGRES_DB: auction-system
-- Ports:
-  - Host: 5432
-  - Container: 5432
-- Volumes:
-  - ./postgres-data:/var/lib/postgresql/data
-
-#### Web Service
-
-- Build context: .
-- Dockerfile: dev.Dockerfile
-- Links: postgres
-- Container name: jtr-auction-express
-- Ports:
-  - Host: 3000
-  - Container: 3000
-- Environment variables:
-  - PGHOST: postgres
-  - PGHOST_MIGRATION: postgres
-- Volumes:
-  - ./:/app
-  
-
-### Environment Variables
-
-The required environment variables can be found in the `.env.example` file. Create a new `.env` file and copy the contents from `.env.example`. Modify the values of the variables as needed.
-
-
-### First-time Setup
-
-To set up the backend for the first time, follow these steps:
-
-1. Ensure that Docker is installed on your system.
-2. Navigate to the project root directory.
-3. Run the following command to start the backend services:
-
-```shell
-docker-compose up
-```
-
-4. After the services are up and running, open a new terminal window and navigate to the project root directory.
-5. Run the following command to run the migration script:
-
-```shell
-npm run migration:run
-```
-
-This will set up the necessary database schema and initial data.
 
 ## Frontend
 
 The frontend is built using React and TypeScript. The `package.json` file contains the dependencies and scripts required for the frontend setup.
 
-### Dependencies
-
-The frontend dependencies can be found in `package.json`
-
-### Scripts
-
-The available scripts for the frontend are:
-
-- start: Starts the development server on port 3006.
-- build: Builds the production-ready optimized bundle.
-- test: Runs tests using the Jest testing framework.
-- eject: Ejects the configuration and scripts from Create React App.
-
-### Development Environment
-
-The development environment is configured to support the following browsers:
-
-- Chrome (latest version)
-- Firefox (latest version)
-- Safari (latest version)
-
-## Getting Started
-
-To set up the frontend, follow these steps:
-
-1. Ensure that Node.js and npm (Node Package Manager) are installed on your system.
-2. Navigate to the `frontend` directory.
-3. Run the following command to install the dependencies:
+## Built With
 
-```shell
-npm install
-```
+- [React](https://reactjs.org/) - Front-end framework
+- [TypeScript](https://www.typescriptlang.org/) - Typed JavaScript
 
-4. Once the installation is complete, you can start the development server by running the following command:
+### Guide
+You can find full guide for the frontend setup in the [Frontend Readme](./frontend/readme.md)
 
-```shell
-npm start
-```
+## Authors
 
-This will start the frontend application on port 3006.
+- [HendryZheng](https://github.com/xen-HendryZheng)
\ No newline at end of file
diff --git a/backend/dev.Dockerfile b/backend/dev.Dockerfile
index a8bc7d6..58f10be 100644
--- a/backend/dev.Dockerfile
+++ b/backend/dev.Dockerfile
@@ -2,6 +2,6 @@ FROM node:18-slim
 
 WORKDIR /app
 
-EXPOSE 3000
+EXPOSE $PORT
 
 CMD ["npm", "run", "start:dev"]
\ No newline at end of file
diff --git a/backend/docker-compose.yml b/backend/docker-compose.yml
index 54f7e3e..992b940 100644
--- a/backend/docker-compose.yml
+++ b/backend/docker-compose.yml
@@ -11,6 +11,8 @@ services:
     volumes:
       - ./postgres-data:/var/lib/postgresql/data
   web:
+    env_file:
+    - .env
     build:
       context: .
       dockerfile: dev.Dockerfile
@@ -18,7 +20,7 @@ services:
       - postgres
     container_name: jtr-auction-express
     ports:
-      - 3000:3000
+      - "${PORT}:${PORT}"
     environment:
       - PGHOST=postgres
       - PGHOST_MIGRATION=postgres