# Network Environment Configuration

> Prerequisite for Vibe Coding: Ensure normal access to services like GitHub, Google, and Claude.

---

## Method One: AI-Guided Configuration (Recommended)

Copy the following prompt and paste it into any AI chat box (ChatGPT, Claude, Gemini web version, etc.):

```
You are a patient network environment configuration assistant. I need to configure a network proxy to access foreign services such as GitHub, Google, and Claude.

My situation:
- Operating system: [Please tell me if you are using Windows/macOS/Linux/Android]
- I already have a proxy service subscription link (airport subscription)

Please guide me on how to configure the network proxy using the FlClash client:
1. How to download and install FlClash (GitHub: https://github.com/chen08209/FlClash/releases)
2. How to import my subscription link
3. How to enable TUN mode (virtual network card) to achieve global proxy
4. How to enable system proxy
5. How to verify if the configuration is successful

Requirements:
- Detail each step, describe button locations with pictures
- If I encounter problems, help me analyze the cause and provide solutions
- After completing each step, ask me if it was successful, and then proceed to the next step

Let's start now, first ask me what operating system I am using.
```

---

## Method Two: Manual Configuration

### You will need

1.  **Network service subscription** - a provider of node services
2.  **FlClash** - a cross-platform network configuration client

### Step One: Purchase Network Service

Visit the service provider: https://xn--9kqz23b19z.com/#/register?code=35BcnKzl

-   Register an account
-   Choose a plan (starting from approx. 6 RMB/month)
-   After payment, find the **subscription link** in the user panel and copy it for later use

### Step Two: Download FlClash

GitHub Download: https://github.com/chen08209/FlClash/releases

Select based on your system:
-   Windows: `FlClash-x.x.x-windows-setup.exe`
-   macOS: `FlClash-x.x.x-macos.dmg`
-   Linux: `FlClash-x.x.x-linux-amd64.AppImage`
-   Android: `FlClash-x.x.x-android.apk`

### Step Three: Import Subscription

1.  Open FlClash
2.  Click **Configuration** → **Add**
3.  Select **URL Import**
4.  Paste the subscription link copied in the first step
5.  Click confirm and wait for nodes to load

### Step Four: Enable Proxy

Set the following three items in order:

| Setting                 | Operation                               |
| :---------------------- | :-------------------------------------- |
| **Virtual Network Card (TUN)** | Enable - Achieve global traffic proxy |
| **System Proxy**        | Enable - Let system applications use the proxy |
| **Proxy Mode**          | Select **Global Mode**                  |

After setting up, the FlClash main interface should show "Connected".

### Verification

```bash
# Test Google connectivity
curl -I https://www.google.com

# Test GitHub connectivity
curl -I https://github.com
```

If `HTTP/2 200` is returned, the configuration is successful.

---

## FAQ

**Q: Nodes can't connect?**
A: Try switching to other nodes, or check if the subscription has expired.

**Q: Some applications don't use the proxy?**
A: Ensure TUN mode (virtual network card) is enabled.

**Q: Want the terminal to also use the proxy?**
A: The terminal automatically uses the proxy after TUN mode is enabled; or manually set:
```bash
export https_proxy=http://127.0.0.1:7890
export http_proxy=http://127.0.0.1:7890
```

---

## Next Step

After network configuration is complete, continue reading [02-Development Environment Setup](./02-Development%20Environment%20Setup.md).