diff --git a/README.md b/README.md
index 9d7a608..f370eb3 100644
--- a/README.md
+++ b/README.md
@@ -7,13 +7,28 @@ Segatools 读卡器前端
 # 装
 
 ```
+git clone https://github.com/MaigoLabs/AimeWeb
+cd AimeWeb
 python3 -m venv venv
 venv/bin/pip install -r requirements.txt
 ```
 
+# 配
+
+编辑 `src/main.py` 文件
+
+```py
+AIME_PATH = "aime.txt"      # segatools aimePath
+KEY = 0x0D                  # segatools card scan key
+PORT = 8249                 # HTTP Port
+```
+
 # 跑
 
 ```
 venv/bin/python3 src/main.py
 ```
 
+# 用
+
+浏览器打开 `http://{LAN ip}:8249`
diff --git a/src/main.py b/src/main.py
index 99a0ab5..01c8869 100644
--- a/src/main.py
+++ b/src/main.py
@@ -10,6 +10,12 @@ from starlette.responses import HTMLResponse
 
 from vk import press_key, release_key
 
+
+AIME_PATH = "aime.txt"      # segatools aimePath
+KEY = 0x0D                  # segatools card scan key
+PORT = 8249                 # HTTP Port
+
+
 app = FastAPI()
 
 # CORS
@@ -22,7 +28,7 @@ app.add_middleware(
 )
 
 # Configuration
-PATH = Path('aime.txt')
+PATH = Path(AIME_PATH)
 AUDIO_EFFECT = Path(__file__).parent / 'audio/mixkit-gaming-lock-2848.wav'
 
 HTML = Path(__file__).parent.parent / "web/dist/index.html"
@@ -58,9 +64,9 @@ def scan(uid: str):
     winsound.PlaySound(str(AUDIO_EFFECT), winsound.SND_FILENAME)
 
     # Simulate key press
-    press_key()
+    press_key(KEY)
     time.sleep(5)
-    release_key()
+    release_key(KEY)
 
     return {"uid": uid}
 
diff --git a/src/vk.py b/src/vk.py
index 47bd965..9e6eb4a 100644
--- a/src/vk.py
+++ b/src/vk.py
@@ -1,14 +1,11 @@
 import ctypes
 
-# Virtual-Key codes
-VK = 0x0D
 
-
-def press_key(vk_code=VK):
+def press_key(vk_code):
     scan_code = ctypes.windll.user32.MapVirtualKeyA(vk_code, 0)
     ctypes.windll.user32.keybd_event(vk_code, scan_code, 0, 0)
 
 
-def release_key(vk_code=VK):
+def release_key(vk_code):
     scan_code = ctypes.windll.user32.MapVirtualKeyA(vk_code, 0)
     ctypes.windll.user32.keybd_event(vk_code, scan_code, 0x0002, 0)