diff --git a/V7/V7.py b/V7/V7.py
index c916bc5..468ee88 100644
--- a/V7/V7.py
+++ b/V7/V7.py
@@ -5,8 +5,11 @@ from pyvirtualdisplay.smartdisplay import SmartDisplay
 from actions.cards import daily_cards, more_cards, all_cards
 from actions.login import login
 from actions.websearch import pc_search
-from tools.config import create_display, start_browser
+from tools.browser_config import create_display, start_browser
+from tools.config import load_parameters, check_config
 from tools.logger import *
+import sys
+import json
 
 
 def routine(mail: str, pwd: str, vnc: bool = False) -> None:
@@ -21,12 +24,20 @@ def routine(mail: str, pwd: str, vnc: bool = False) -> None:
     browser.close()
 
 
-routine("EMAIL", "PWD", True)
+def main():
+    data = load_parameters()
+    check_config(data)
 
+
+# routine("EMAIL", "PWD", True)
+# parse_file({"accounts": {"nb": 1, 0: {"mail": "piair338@gmail.com", "pwd": "<PASSWORD>"}}})
 """
 TODO :
 Fidelity management.
 Daily search mobile
-custom start
+start -> with json config
+    -> allow claiming
+    -> default mode 
 --vnc-- Should work, but not tested with WSL.
+remove unused imports 
 """
diff --git a/V7/config.example.json b/V7/config.example.json
new file mode 100644
index 0000000..a0c02a7
--- /dev/null
+++ b/V7/config.example.json
@@ -0,0 +1,14 @@
+{
+  "accounts": {
+    "nb": 1,
+    "0": {
+      "mail": "piair338@gmail.com",
+      "pwd": "uéuéué"
+    }
+  },
+  "config": {
+    "vnc_enabled": "False",
+    "vnc_port": 2345,
+    "claim": "False"
+  }
+}
\ No newline at end of file
diff --git a/V7/tools/browser_config.py b/V7/tools/browser_config.py
new file mode 100644
index 0000000..8230c0f
--- /dev/null
+++ b/V7/tools/browser_config.py
@@ -0,0 +1,18 @@
+from playwright.sync_api import sync_playwright, expect, Page, BrowserContext
+from playwright_stealth import stealth_sync
+from pyvirtualdisplay.smartdisplay import SmartDisplay
+
+
+def create_display(vnc=False) -> SmartDisplay:
+    if vnc:
+        return SmartDisplay(backend="xvnc", size=(1920, 1080), rfbport=2345, color_depth=24)
+    return SmartDisplay(size=(1920, 1080))
+
+
+def start_browser(name: str) -> (Page, BrowserContext):
+    p = sync_playwright().start()
+    browser = p.firefox.launch_persistent_context(f"./data/{name}/", headless=False, args=["--start-maximised"],
+                                                  no_viewport=True)
+    page = browser.new_page()
+    stealth_sync(page)
+    return page, browser
diff --git a/V7/tools/config.py b/V7/tools/config.py
index 8230c0f..52cb5c6 100644
--- a/V7/tools/config.py
+++ b/V7/tools/config.py
@@ -2,17 +2,46 @@ from playwright.sync_api import sync_playwright, expect, Page, BrowserContext
 from playwright_stealth import stealth_sync
 from pyvirtualdisplay.smartdisplay import SmartDisplay
 
-
-def create_display(vnc=False) -> SmartDisplay:
-    if vnc:
-        return SmartDisplay(backend="xvnc", size=(1920, 1080), rfbport=2345, color_depth=24)
-    return SmartDisplay(size=(1920, 1080))
+from actions.cards import daily_cards, more_cards, all_cards
+from actions.login import login
+from actions.websearch import pc_search
+from tools.browser_config import create_display, start_browser
+from tools.logger import *
+import sys
+import json
 
 
-def start_browser(name: str) -> (Page, BrowserContext):
-    p = sync_playwright().start()
-    browser = p.firefox.launch_persistent_context(f"./data/{name}/", headless=False, args=["--start-maximised"],
-                                                  no_viewport=True)
-    page = browser.new_page()
-    stealth_sync(page)
-    return page, browser
+def check_config(data: dict) -> None:
+    info("Checking config file.")
+    try:
+        assert data["accounts"]["nb"] != 0, "No accounts found in the file"
+        for i in range(data["accounts"]["nb"]):
+            assert data["accounts"][str(i)]["mail"] != "", f"Account {i} has no mail."
+            assert data["accounts"][str(i)]["pwd"] != "", f"Account {i} has no password."
+        assert data["config"]["vnc_enabled"] in ["True", "False"], f"vnc_enable should be either True or False."
+        assert data["config"]["claim"] in ["True", "False"], f"claim should be either True or False."
+        assert 1024 < data["config"]["vnc_port"] < 65535, f"vnc_port should be a valid port."
+        assert data["config"]["vnc_port"] not in [1234], f"vnc_port should be different than the webserver's ports."
+    except AssertionError as e:
+        critical(e)
+        exit(1)
+    except KeyError as e:
+        critical(f"Malformed config file. Missing {e}. Refer to the example config file.")
+        exit(1)
+    info("Successfully Checked config.")
+
+
+def load_parameters() -> dict:
+    parameters = sys.argv
+    if len(parameters) == 1:
+        critical("Started with no parameters. Please provide at least a config file.")
+        exit(1)
+    if len(parameters) > 2:
+        warning("Started with multiple parameters. Some will be ignored")
+    try:
+        with open(parameters[1], "r") as f:
+            data = json.load(f)
+            return data
+    except FileNotFoundError:
+        critical("Could not open the config file.")
+        exit(1)