diff --git a/cryptide_project/package-lock.json b/cryptide_project/package-lock.json
index 0108d1d..e257a1c 100644
--- a/cryptide_project/package-lock.json
+++ b/cryptide_project/package-lock.json
@@ -36,6 +36,9 @@
         "react-router-hash-link": "^2.4.3",
         "react-scripts": "5.0.1",
         "react-switch": "^7.0.0",
+        "socket.io": "^4.7.2",
+        "socket.io-client": "^4.7.2",
+        "sqlite3": "^5.1.6",
         "typescript": "^5.2.2",
         "vis-network": "^9.1.9",
         "web-vitals": "^2.1.4"
@@ -7634,6 +7637,94 @@
         "node": ">= 0.8"
       }
     },
+    "node_modules/engine.io": {
+      "version": "6.5.4",
+      "resolved": "https://registry.npmjs.org/engine.io/-/engine.io-6.5.4.tgz",
+      "integrity": "sha512-KdVSDKhVKyOi+r5uEabrDLZw2qXStVvCsEB/LN3mw4WFi6Gx50jTyuxYVCwAAC0U46FdnzP/ScKRBTXb/NiEOg==",
+      "dependencies": {
+        "@types/cookie": "^0.4.1",
+        "@types/cors": "^2.8.12",
+        "@types/node": ">=10.0.0",
+        "accepts": "~1.3.4",
+        "base64id": "2.0.0",
+        "cookie": "~0.4.1",
+        "cors": "~2.8.5",
+        "debug": "~4.3.1",
+        "engine.io-parser": "~5.2.1",
+        "ws": "~8.11.0"
+      },
+      "engines": {
+        "node": ">=10.2.0"
+      }
+    },
+    "node_modules/engine.io-client": {
+      "version": "6.5.3",
+      "resolved": "https://registry.npmjs.org/engine.io-client/-/engine.io-client-6.5.3.tgz",
+      "integrity": "sha512-9Z0qLB0NIisTRt1DZ/8U2k12RJn8yls/nXMZLn+/N8hANT3TcYjKFKcwbw5zFQiN4NTde3TSY9zb79e1ij6j9Q==",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.3.1",
+        "engine.io-parser": "~5.2.1",
+        "ws": "~8.11.0",
+        "xmlhttprequest-ssl": "~2.0.0"
+      }
+    },
+    "node_modules/engine.io-client/node_modules/ws": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
+      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/engine.io-parser": {
+      "version": "5.2.1",
+      "resolved": "https://registry.npmjs.org/engine.io-parser/-/engine.io-parser-5.2.1.tgz",
+      "integrity": "sha512-9JktcM3u18nU9N2Lz3bWeBgxVgOKpw7yhRaoxQA3FUDZzzw+9WlA6p4G4u0RixNkg14fH7EfEc/RhpurtiROTQ==",
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
+    "node_modules/engine.io/node_modules/cookie": {
+      "version": "0.4.2",
+      "resolved": "https://registry.npmjs.org/cookie/-/cookie-0.4.2.tgz",
+      "integrity": "sha512-aSWTXFzaKWkvHO1Ny/s+ePFpvKsPnjc551iI41v3ny/ow6tBG5Vd+FuqGNhh1LxOmVzOlGUriIlOaokOvhaStA==",
+      "engines": {
+        "node": ">= 0.6"
+      }
+    },
+    "node_modules/engine.io/node_modules/ws": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
+      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/enhanced-resolve": {
       "version": "5.15.0",
       "resolved": "https://registry.npmjs.org/enhanced-resolve/-/enhanced-resolve-5.15.0.tgz",
@@ -16703,6 +16794,87 @@
         "node": ">=8"
       }
     },
+    "node_modules/smart-buffer": {
+      "version": "4.2.0",
+      "resolved": "https://registry.npmjs.org/smart-buffer/-/smart-buffer-4.2.0.tgz",
+      "integrity": "sha512-94hK0Hh8rPqQl2xXc3HsaBoOXKV20MToPkcXvwbISWLEs+64sBq5kFgn2kJDHb1Pry9yrP0dxrCI9RRci7RXKg==",
+      "optional": true,
+      "engines": {
+        "node": ">= 6.0.0",
+        "npm": ">= 3.0.0"
+      }
+    },
+    "node_modules/socket.io": {
+      "version": "4.7.2",
+      "resolved": "https://registry.npmjs.org/socket.io/-/socket.io-4.7.2.tgz",
+      "integrity": "sha512-bvKVS29/I5fl2FGLNHuXlQaUH/BlzX1IN6S+NKLNZpBsPZIDH+90eQmCs2Railn4YUiww4SzUedJ6+uzwFnKLw==",
+      "dependencies": {
+        "accepts": "~1.3.4",
+        "base64id": "~2.0.0",
+        "cors": "~2.8.5",
+        "debug": "~4.3.2",
+        "engine.io": "~6.5.2",
+        "socket.io-adapter": "~2.5.2",
+        "socket.io-parser": "~4.2.4"
+      },
+      "engines": {
+        "node": ">=10.2.0"
+      }
+    },
+    "node_modules/socket.io-adapter": {
+      "version": "2.5.2",
+      "resolved": "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.5.2.tgz",
+      "integrity": "sha512-87C3LO/NOMc+eMcpcxUBebGjkpMDkNBS9tf7KJqcDsmL936EChtVva71Dw2q4tQcuVC+hAUy4an2NO/sYXmwRA==",
+      "dependencies": {
+        "ws": "~8.11.0"
+      }
+    },
+    "node_modules/socket.io-adapter/node_modules/ws": {
+      "version": "8.11.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.11.0.tgz",
+      "integrity": "sha512-HPG3wQd9sNQoT9xHyNCXoDUa+Xw/VevmY9FoHyQ+g+rrMn4j6FB4np7Z0OhdTgjx6MgQLK7jwSy1YecU1+4Asg==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": "^5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/socket.io-client": {
+      "version": "4.7.2",
+      "resolved": "https://registry.npmjs.org/socket.io-client/-/socket.io-client-4.7.2.tgz",
+      "integrity": "sha512-vtA0uD4ibrYD793SOIAwlo8cj6haOeMHrGvwPxJsxH7CeIksqJ+3Zc06RvWTIFgiSqx4A3sOnTXpfAEE2Zyz6w==",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.3.2",
+        "engine.io-client": "~6.5.2",
+        "socket.io-parser": "~4.2.4"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
+    "node_modules/socket.io-parser": {
+      "version": "4.2.4",
+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-4.2.4.tgz",
+      "integrity": "sha512-/GbIKmo8ioc+NIWIhwdecY0ge+qVBSMdgxGygevmdHj24bsfgtCmcUUcQ5ZzcylGFHsN3k4HB4Cgkl96KVnuew==",
+      "dependencies": {
+        "@socket.io/component-emitter": "~3.1.0",
+        "debug": "~4.3.1"
+      },
+      "engines": {
+        "node": ">=10.0.0"
+      }
+    },
     "node_modules/sockjs": {
       "version": "0.3.24",
       "resolved": "https://registry.npmjs.org/sockjs/-/sockjs-0.3.24.tgz",
@@ -16713,6 +16885,42 @@
         "websocket-driver": "^0.7.4"
       }
     },
+    "node_modules/sockjs/node_modules/uuid": {
+      "version": "8.3.2",
+      "resolved": "https://registry.npmjs.org/uuid/-/uuid-8.3.2.tgz",
+      "integrity": "sha512-+NYs2QeMWy+GWFOEm9xnn6HCDp0l7QBD7ml8zLUmJ+93Q5NF0NocErnwkTkXVFNiX3/fpC6afS8Dhb/gz7R7eg==",
+      "bin": {
+        "uuid": "dist/bin/uuid"
+      }
+    },
+    "node_modules/socks": {
+      "version": "2.7.1",
+      "resolved": "https://registry.npmjs.org/socks/-/socks-2.7.1.tgz",
+      "integrity": "sha512-7maUZy1N7uo6+WVEX6psASxtNlKaNVMlGQKkG/63nEDdLOWNbiUMoLK7X4uYoLhQstau72mLgfEWcXcwsaHbYQ==",
+      "optional": true,
+      "dependencies": {
+        "ip": "^2.0.0",
+        "smart-buffer": "^4.2.0"
+      },
+      "engines": {
+        "node": ">= 10.13.0",
+        "npm": ">= 3.0.0"
+      }
+    },
+    "node_modules/socks-proxy-agent": {
+      "version": "6.2.1",
+      "resolved": "https://registry.npmjs.org/socks-proxy-agent/-/socks-proxy-agent-6.2.1.tgz",
+      "integrity": "sha512-a6KW9G+6B3nWZ1yB8G7pJwL3ggLy1uTzKAgCb7ttblwqdz9fMGJUuTy3uFzEP48FAs9FLILlmzDlE2JJhVQaXQ==",
+      "optional": true,
+      "dependencies": {
+        "agent-base": "^6.0.2",
+        "debug": "^4.3.3",
+        "socks": "^2.6.2"
+      },
+      "engines": {
+        "node": ">= 10"
+      }
+    },
     "node_modules/source-list-map": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/source-list-map/-/source-list-map-2.0.1.tgz",
diff --git a/cryptide_project/src/Pages/Play.tsx b/cryptide_project/src/Pages/Play.tsx
index dab7184..a20849a 100644
--- a/cryptide_project/src/Pages/Play.tsx
+++ b/cryptide_project/src/Pages/Play.tsx
@@ -87,10 +87,10 @@ function Play() {
       }, []);  // Aucune dépendance ici
 
     useEffect(() => {
-    if (room !== null) {
-        const nouvelleURL = `/lobby?room=${room}`;
-        navigate(nouvelleURL);
-    }
+        if (room !== null) {
+            const nouvelleURL = `/lobby?room=${room}`;
+            navigate(nouvelleURL);
+        }
     }, [room, navigate]);
 
     return (
diff --git a/cryptide_project/yarn.lock b/cryptide_project/yarn.lock
index b27a467..580aaed 100644
--- a/cryptide_project/yarn.lock
+++ b/cryptide_project/yarn.lock
@@ -3853,16 +3853,17 @@ cookie-signature@1.0.6:
   resolved "https://registry.npmjs.org/cookie-signature/-/cookie-signature-1.0.6.tgz"
   integrity sha512-QADzlaHc8icV8I7vbaJXJwod9HWYp8uCqf1xa4OfNu1T7JVxQIrUgOWtHdNDtPiywmFbiS12VjotIXLrKM3orQ==
 
-<<<<<<< HEAD
+cookie@~0.4.1:
+  version "0.4.2"
+  resolved "https://registry.npmjs.org/cookie/-/cookie-0.4.2.tgz"
+  integrity sha512-aSWTXFzaKWkvHO1Ny/s+ePFpvKsPnjc551iI41v3ny/ow6tBG5Vd+FuqGNhh1LxOmVzOlGUriIlOaokOvhaStA==
+
 cookie@0.4.1:
   version "0.4.1"
   resolved "https://registry.npmjs.org/cookie/-/cookie-0.4.1.tgz"
   integrity sha512-ZwrFkGJxUR3EIoXtO+yVE69Eb7KlixbaeAWfBQB9vVsNn/o+Yw69gBWSSDK825hQNdN+wF8zELf3dFNl/kxkUA==
 
 cookie@0.4.2:
-=======
-cookie@~0.4.1:
->>>>>>> a8c529123b11a032c4ba44a1587af10373815560
   version "0.4.2"
   resolved "https://registry.npmjs.org/cookie/-/cookie-0.4.2.tgz"
   integrity sha512-aSWTXFzaKWkvHO1Ny/s+ePFpvKsPnjc551iI41v3ny/ow6tBG5Vd+FuqGNhh1LxOmVzOlGUriIlOaokOvhaStA==
@@ -3902,11 +3903,7 @@ core-util-is@~1.0.0:
   resolved "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.3.tgz"
   integrity sha512-ZQBvi1DcpJ4GDqanjucZ2Hj3wEO5pZDS89BWbkcrvdxksJorwUDDZamX9ldFkp9aw2lmBDLgkObEA4DWNJ9FYQ==
 
-<<<<<<< HEAD
-cors@^2.8.5:
-=======
 cors@^2.8.5, cors@~2.8.5:
->>>>>>> a8c529123b11a032c4ba44a1587af10373815560
   version "2.8.5"
   resolved "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz"
   integrity sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==
@@ -4181,11 +4178,7 @@ debug@^3.2.7:
   dependencies:
     ms "^2.1.1"
 
-<<<<<<< HEAD
-debug@^4.1.0, debug@^4.1.1, debug@^4.3.2, debug@^4.3.3, debug@^4.3.4, debug@4:
-=======
-debug@^4.1.0, debug@^4.1.1, debug@^4.3.2, debug@^4.3.4, debug@~4.3.1, debug@~4.3.2, debug@4:
->>>>>>> a8c529123b11a032c4ba44a1587af10373815560
+debug@^4.1.0, debug@^4.1.1, debug@^4.3.2, debug@^4.3.3, debug@^4.3.4, debug@~4.3.1, debug@~4.3.2, debug@4:
   version "4.3.4"
   resolved "https://registry.npmjs.org/debug/-/debug-4.3.4.tgz"
   integrity sha512-PRWFHuSU3eDtQJPvnNY7Jcket1j0t5OuOsFzPPzsekD52Zl8qUfFIPEiswXqIvHWGVHOgX+7G/vCNNhehwxfkQ==
@@ -4534,14 +4527,6 @@ encodeurl@~1.0.2:
   resolved "https://registry.npmjs.org/encodeurl/-/encodeurl-1.0.2.tgz"
   integrity sha512-TPJXq8JqFaVYm2CWmPvnP2Iyo4ZSM7/QKcSmuMLDObfpH5fi7RUGmd/rTDf+rut/saiDiQEeVTNgAmJEdAOx0w==
 
-<<<<<<< HEAD
-encoding@^0.1.0, encoding@^0.1.12:
-  version "0.1.13"
-  resolved "https://registry.npmjs.org/encoding/-/encoding-0.1.13.tgz"
-  integrity sha512-ETBauow1T35Y/WZMkio9jiM0Z5xjHHmJ4XmjZOq1l/dXz3lr2sRn87nJy20RupqSh1F2m3HHPSp8ShIPQJrJ3A==
-  dependencies:
-    iconv-lite "^0.6.2"
-=======
 engine.io-client@~6.5.2:
   version "6.5.3"
   resolved "https://registry.npmjs.org/engine.io-client/-/engine.io-client-6.5.3.tgz"
@@ -4573,7 +4558,6 @@ engine.io@~6.5.2:
     debug "~4.3.1"
     engine.io-parser "~5.2.1"
     ws "~8.11.0"
->>>>>>> a8c529123b11a032c4ba44a1587af10373815560
 
 enhanced-resolve@^5.15.0:
   version "5.15.0"
@@ -5108,7 +5092,6 @@ expect@^29.0.0:
     jest-message-util "^29.7.0"
     jest-util "^29.7.0"
 
-<<<<<<< HEAD
 express-session@^1.17.3:
   version "1.17.3"
   resolved "https://registry.npmjs.org/express-session/-/express-session-1.17.3.tgz"
@@ -5123,8 +5106,6 @@ express-session@^1.17.3:
     safe-buffer "5.2.1"
     uid-safe "~2.1.5"
 
-=======
->>>>>>> a8c529123b11a032c4ba44a1587af10373815560
 express@^4.17.3, express@^4.18.2:
   version "4.18.2"
   resolved "https://registry.npmjs.org/express/-/express-4.18.2.tgz"
@@ -5848,7 +5829,7 @@ humanize-ms@^1.2.1:
   dependencies:
     ms "^2.0.0"
 
-iconv-lite@^0.6.2, iconv-lite@^0.6.3:
+iconv-lite@^0.6.3:
   version "0.6.3"
   resolved "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.6.3.tgz"
   integrity sha512-4fCk79wshMdzMp2rH06qWrJE4iolqLhCUH+OiuIgU++RB0+94NlDL81atO7GX55uUKueo0txHNtvEyI6D7WdMw==
@@ -9488,12 +9469,11 @@ slash@^4.0.0:
   resolved "https://registry.npmjs.org/slash/-/slash-4.0.0.tgz"
   integrity sha512-3dOsAHXXUkQTpOYcoAxLIorMTp4gIQr5IW3iVb7A7lFIp0VHhnynm9izx6TssdrIcVIESAlVjtnO2K8bg+Coew==
 
-<<<<<<< HEAD
 smart-buffer@^4.2.0:
   version "4.2.0"
   resolved "https://registry.npmjs.org/smart-buffer/-/smart-buffer-4.2.0.tgz"
   integrity sha512-94hK0Hh8rPqQl2xXc3HsaBoOXKV20MToPkcXvwbISWLEs+64sBq5kFgn2kJDHb1Pry9yrP0dxrCI9RRci7RXKg==
-=======
+
 socket.io-adapter@~2.5.2:
   version "2.5.2"
   resolved "https://registry.npmjs.org/socket.io-adapter/-/socket.io-adapter-2.5.2.tgz"
@@ -9531,7 +9511,6 @@ socket.io@^4.7.2:
     engine.io "~6.5.2"
     socket.io-adapter "~2.5.2"
     socket.io-parser "~4.2.4"
->>>>>>> a8c529123b11a032c4ba44a1587af10373815560
 
 sockjs@^0.3.24:
   version "0.3.24"