docs: update

docs/docs/architecture/_category_.json

@@ -1,4 +0,0 @@
-{
-  "label": "Architecuture",
-  "position": 5
-}

docs/docs/dev/_category_.json

@@ -0,0 +1,4 @@
+{
+  "label": "Development",
+  "position": 4
+}

docs/docs/dev/backend.md

@@ -0,0 +1,42 @@
+---
+sidebar_position: 2
+---
+
+# Backend
+
+## Environmental variables
+
+:::warning[Strongly Recommended]
+
+Although the system will work with default settings without setting environment variables, it is strongly recommended to set SECRET_KEY in production.
+
+:::
+
+Create `.env` File on `backend/`
+
+```.env
+FRONTEND_ORIGIN=http://localhost:8000
+PORT=8001
+SECRET_KEY=your-secret-key
+```
+
+## Set up database
+
+```bash
+npm run migrate
+```
+
+## Start backend server
+
+```bash
+npm run start
+```
+
+If you do not bother to place `.env` files, such as in a development environment, you can start the server with `npm run dev`.
+
+## Database operation
+
+The following commands may be useful when trying things out in development:
+
+- drop tables: `npm run drop`
+- insert seed data: `npm run seed`

docs/docs/dev/er.md

@@ -1,5 +1,5 @@
 ---
-sidebar_position: 1
+sidebar_position: 4
 ---
 
 # Entity Relationship

docs/docs/dev/frontend.md

@@ -0,0 +1,32 @@
+---
+sidebar_position: 3
+---
+
+# Frontend
+
+## Environmental variables
+
+:::info
+
+Although the system will work with default settings without setting environment variables, but you can override the settings by setting environment variables.
+
+:::
+
+Create `.env` File on `frontend/`
+
+```
+NEXT_PUBLIC_BACKEND_ORIGIN=http://localhost:8001
+```
+
+## Start frontend server with dev mode
+
+```bash
+npm run dev
+```
+
+## Start frontend server with production mode
+
+```bash
+npm run build
+npm run start
+```

docs/docs/dev/technologies.md

@@ -0,0 +1,26 @@
+---
+sidebar_position: 1
+---
+
+# Technologies
+
+UnitTCMS is powered by following technologies. For more detailed package and version information, please see package.json.
+
+## Frontend
+
+| Technology                                      | Use                  |
+| ----------------------------------------------- | -------------------- |
+| [React](https://react.dev/)                     | Rendering            |
+| [Next.js](https://nextjs.org/)                  | Routing, etc.        |
+| [NextUI](https://nextui.org/)                   | UI library           |
+| [next-intl](https://next-intl-docs.vercel.app/) | Internationalization |
+| [ApexCharts](https://apexcharts.com/)           | Charts               |
+
+## Backend
+
+| Technology                          | Use                |
+| ----------------------------------- | ------------------ |
+| [Node.js](https://nodejs.org/en)    | JavaScript runtime |
+| [Express](https://expressjs.com/)   | API Server         |
+| [Sequelize](https://sequelize.org/) | ORM                |
+| [SQLite](https://www.sqlite.org/)   | database           |

docs/docs/getstarted/manual.md

@@ -24,7 +24,7 @@ Move to backend directory, then install dependencies.
 
 ```bash
 cd backend
-npm install
+npm ci
 ```
 
 Initialize the database with the following command.
@@ -45,7 +45,7 @@ Move to frontend directory, then install dependencies.
 
 ```bash
 cd frontend
-npm install
+npm ci
 ```
 
 Build frontend code

docs/docs/roadmap/_category_.json

@@ -1,4 +1,4 @@
 {
   "label": "Roadmap",
-  "position": 4
+  "position": 5
 }