diff --git a/apps/api/v2/package.json b/apps/api/v2/package.json
index 9656985fa6..abf18d7986 100644
--- a/apps/api/v2/package.json
+++ b/apps/api/v2/package.json
@@ -59,6 +59,7 @@
     "@sentry/node": "^9.15.0",
     "@sentry/profiling-node": "^9.15.0",
     "@snyk/protect": "latest",
+    "axios": "^1.9.0",
     "body-parser": "^1.20.2",
     "bull": "^4.12.4",
     "class-transformer": "^0.5.1",
@@ -73,7 +74,6 @@
     "lodash": "4.17.21",
     "luxon": "3.4.4",
     "nest-winston": "^1.9.4",
-    "next-auth": "^4.22.1",
     "passport": "^0.7.0",
     "passport-jwt": "^4.0.1",
     "qs-stringify": "^1.2.1",
diff --git a/apps/api/v2/src/modules/teams/teams/controllers/teams.controller.e2e-spec.ts b/apps/api/v2/src/modules/teams/teams/controllers/teams.controller.e2e-spec.ts
index c43d225691..7a73f4ac35 100644
--- a/apps/api/v2/src/modules/teams/teams/controllers/teams.controller.e2e-spec.ts
+++ b/apps/api/v2/src/modules/teams/teams/controllers/teams.controller.e2e-spec.ts
@@ -10,8 +10,9 @@ import { TeamsModule } from "@/modules/teams/teams/teams.module";
 import { INestApplication } from "@nestjs/common";
 import { NestExpressApplication } from "@nestjs/platform-express";
 import { Test } from "@nestjs/testing";
-import { User } from "next-auth";
 import Stripe from "stripe";
+
+import { User } from "@calcom/prisma/client";
 import * as request from "supertest";
 import { ApiKeysRepositoryFixture } from "test/fixtures/repository/api-keys.repository.fixture";
 import { MembershipRepositoryFixture } from "test/fixtures/repository/membership.repository.fixture";
diff --git a/apps/web/package.json b/apps/web/package.json
index c43717daf9..462ae985b1 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -61,6 +61,7 @@
     "@hookform/resolvers": "^2.9.7",
     "@next-auth/prisma-adapter": "^1.0.4",
     "@next/bundle-analyzer": "^16.1.0",
+    "@next/third-parties": "^14.2.5",
     "@prisma/nextjs-monorepo-workaround-plugin": "^6.16.1",
     "@radix-ui/react-avatar": "1.1.3",
     "@radix-ui/react-collapsible": "^1.0.0",
@@ -93,6 +94,7 @@
     "entities": "4.5.0",
     "gray-matter": "^4.0.3",
     "handlebars": "^4.7.7",
+    "i18next": "^23.2.3",
     "ical.js": "^1.4.0",
     "ics": "^2.37.0",
     "isbot": "^5.1.30",
@@ -129,6 +131,7 @@
     "react-dom": "18.2.0",
     "react-easy-crop": "^3.5.2",
     "react-hook-form": "^7.43.3",
+    "react-i18next": "^12.3.1",
     "react-live-chat-loader": "^2.8.1",
     "react-multi-email": "^0.5.3",
     "react-phone-input-2": "^2.15.1",
diff --git a/package.json b/package.json
index 99b7fd01cd..dad50678c0 100644
--- a/package.json
+++ b/package.json
@@ -122,9 +122,9 @@
   "dependencies": {
     "@daily-co/daily-js": "^0.83.1",
     "@evyweb/ioctopus": "^1.2.0",
-    "@next/third-parties": "^14.2.5",
     "@vercel/functions": "^1.4.0",
     "city-timezones": "^1.2.1",
+    "date-fns": "^3.6.0",
     "date-fns-tz": "^3.2.0",
     "p-limit": "^6.2.0"
   },
diff --git a/packages/features/package.json b/packages/features/package.json
index 9049c398fb..f2cfc2ee62 100644
--- a/packages/features/package.json
+++ b/packages/features/package.json
@@ -33,6 +33,14 @@
     "web-push": "^3.6.7",
     "zustand": "^4.3.2"
   },
+  "peerDependencies": {
+    "date-fns-tz": "^3.2.0",
+    "react": "^18.2.0",
+    "react-dom": "^18.2.0",
+    "react-is": "^18.2.0",
+    "stripe": "^9.0.0 || ^15.0.0",
+    "zod": "^3.0.0"
+  },
   "devDependencies": {
     "@testing-library/react-hooks": "^8.0.1",
     "@types/web-push": "^3.6.3",
diff --git a/packages/lib/package.json b/packages/lib/package.json
index 24b90a8625..9e419a5a14 100644
--- a/packages/lib/package.json
+++ b/packages/lib/package.json
@@ -25,7 +25,6 @@
     "lingo.dev": "0.117.14",
     "rrule": "^2.7.1",
     "sharp": "0.33.5",
-    "sonner": "^1.7.4",
     "tsdav": "2.0.3",
     "tslog": "^4.9.2",
     "uuid": "^8.3.2"
diff --git a/packages/platform/atoms/package.json b/packages/platform/atoms/package.json
index feb72f3cc0..f70c9a8f72 100644
--- a/packages/platform/atoms/package.json
+++ b/packages/platform/atoms/package.json
@@ -92,6 +92,7 @@
   },
   "peerDependencies": {
     "react": "^18.0.0 || ^19.0.0",
+    "react-dom": "^18.0.0 || ^19.0.0",
     "typescript": "^5.0.0"
   },
   "main": "./dist/cal-atoms.umd.cjs"
diff --git a/packages/trpc/package.json b/packages/trpc/package.json
index 7669d1e80f..2852b6e21e 100644
--- a/packages/trpc/package.json
+++ b/packages/trpc/package.json
@@ -22,6 +22,11 @@
     "superjson": "1.9.1",
     "zod": "3.25.76"
   },
+  "peerDependencies": {
+    "next": ">=14.0.0",
+    "react": "^18.0.0 || ^19.0.0",
+    "react-dom": "^18.0.0 || ^19.0.0"
+  },
   "devDependencies": {
     "@calcom/eslint-config": "workspace:*",
     "typescript": "5.9.2"
diff --git a/packages/ui/package.json b/packages/ui/package.json
index 941cf953dd..5d4ec75b36 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -91,7 +91,6 @@
     "cmk": "^0.1.1",
     "date-fns": "^3.6.0",
     "downshift": "^6.1.9",
-    "next-seo": "^6.0.0",
     "react": "^18.2.0",
     "react-colorful": "^5.6.0",
     "react-day-picker": "^8.10.1",
@@ -101,6 +100,9 @@
     "tailwind-merge": "^1.13.2",
     "uuid": "^11.1.0"
   },
+  "peerDependencies": {
+    "react-dom": "^18.2.0"
+  },
   "devDependencies": {
     "@calcom/config": "workspace:*",
     "@calcom/eslint-config": "workspace:*",
diff --git a/yarn.lock b/yarn.lock
index 8f10a7b5f1..8039028ba7 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1891,6 +1891,7 @@ __metadata:
     "@types/supertest": "npm:^2.0.12"
     "@typescript-eslint/eslint-plugin": "npm:^6"
     "@typescript-eslint/parser": "npm:^6"
+    axios: "npm:^1.9.0"
     body-parser: "npm:^1.20.2"
     bull: "npm:^4.12.4"
     class-transformer: "npm:^0.5.1"
@@ -1908,7 +1909,6 @@ __metadata:
     lodash: "npm:4.17.21"
     luxon: "npm:3.4.4"
     nest-winston: "npm:^1.9.4"
-    next-auth: "npm:^4.22.1"
     node-mocks-http: "npm:^1.16.2"
     passport: "npm:^0.7.0"
     passport-jwt: "npm:^4.0.1"
@@ -2057,6 +2057,7 @@ __metadata:
     vite-plugin-node-polyfills: "npm:^0.22.0"
   peerDependencies:
     react: ^18.0.0 || ^19.0.0
+    react-dom: ^18.0.0 || ^19.0.0
     typescript: ^5.0.0
   languageName: unknown
   linkType: soft
@@ -2566,6 +2567,13 @@ __metadata:
     trigger.dev: "npm:^4.0.0"
     web-push: "npm:^3.6.7"
     zustand: "npm:^4.3.2"
+  peerDependencies:
+    date-fns-tz: ^3.2.0
+    react: ^18.2.0
+    react-dom: ^18.2.0
+    react-is: ^18.2.0
+    stripe: ^9.0.0 || ^15.0.0
+    zod: ^3.0.0
   languageName: unknown
   linkType: soft
 
@@ -2791,7 +2799,6 @@ __metadata:
     lingo.dev: "npm:0.117.14"
     rrule: "npm:^2.7.1"
     sharp: "npm:0.33.5"
-    sonner: "npm:^1.7.4"
     tsdav: "npm:2.0.3"
     tslog: "npm:^4.9.2"
     typescript: "npm:5.9.2"
@@ -3258,6 +3265,10 @@ __metadata:
     superjson: "npm:1.9.1"
     typescript: "npm:5.9.2"
     zod: "npm:3.25.76"
+  peerDependencies:
+    next: ">=14.0.0"
+    react: ^18.0.0 || ^19.0.0
+    react-dom: ^18.0.0 || ^19.0.0
   languageName: unknown
   linkType: soft
 
@@ -3320,7 +3331,6 @@ __metadata:
     fast-glob: "npm:^3.3.2"
     fs-extra: "npm:^11.2.0"
     lucide-static: "npm:^0.424.0"
-    next-seo: "npm:^6.0.0"
     node-html-parser: "npm:^6.1.13"
     react: "npm:^18.2.0"
     react-colorful: "npm:^5.6.0"
@@ -3331,6 +3341,8 @@ __metadata:
     tailwind-merge: "npm:^1.13.2"
     typescript: "npm:5.9.2"
     uuid: "npm:^11.1.0"
+  peerDependencies:
+    react-dom: ^18.2.0
   languageName: unknown
   linkType: soft
 
@@ -3411,6 +3423,7 @@ __metadata:
     "@microsoft/microsoft-graph-types-beta": "npm:0.15.0-preview"
     "@next-auth/prisma-adapter": "npm:^1.0.4"
     "@next/bundle-analyzer": "npm:^16.1.0"
+    "@next/third-parties": "npm:^14.2.5"
     "@playwright/test": "npm:^1.45.3"
     "@prisma/nextjs-monorepo-workaround-plugin": "npm:^6.16.1"
     "@radix-ui/react-avatar": "npm:1.1.3"
@@ -3476,6 +3489,7 @@ __metadata:
     google-auth-library: "npm:^9.15.0"
     gray-matter: "npm:^4.0.3"
     handlebars: "npm:^4.7.7"
+    i18next: "npm:^23.2.3"
     ical.js: "npm:^1.4.0"
     ics: "npm:^2.37.0"
     isbot: "npm:^5.1.30"
@@ -3517,6 +3531,7 @@ __metadata:
     react-dom: "npm:18.2.0"
     react-easy-crop: "npm:^3.5.2"
     react-hook-form: "npm:^7.43.3"
+    react-i18next: "npm:^12.3.1"
     react-live-chat-loader: "npm:^2.8.1"
     react-multi-email: "npm:^0.5.3"
     react-phone-input-2: "npm:^2.15.1"
@@ -19285,6 +19300,17 @@ __metadata:
   languageName: node
   linkType: hard
 
+"axios@npm:^1.9.0":
+  version: 1.13.2
+  resolution: "axios@npm:1.13.2"
+  dependencies:
+    follow-redirects: "npm:^1.15.6"
+    form-data: "npm:^4.0.4"
+    proxy-from-env: "npm:^1.1.0"
+  checksum: 10/ae4e06dcd18289f2fd18179256d550d27f9a53ecb2f9c59f2ccc4efd1d7151839ba8c3e0fb533dac793e4a59a576ca8689a19244dce5c396680837674a47a867
+  languageName: node
+  linkType: hard
+
 "axobject-query@npm:^3.2.1":
   version: 3.2.1
   resolution: "axobject-query@npm:3.2.1"
@@ -20168,7 +20194,6 @@ __metadata:
     "@evyweb/ioctopus": "npm:^1.2.0"
     "@faker-js/faker": "npm:9.2.0"
     "@jetstreamapp/soql-parser-js": "npm:^6.1.0"
-    "@next/third-parties": "npm:^14.2.5"
     "@playwright/test": "npm:^1.45.3"
     "@prisma/internals": "npm:^6.16.2"
     "@snaplet/copycat": "npm:^4.1.0"
@@ -20179,6 +20204,7 @@ __metadata:
     c8: "npm:^7.13.0"
     checkly: "npm:latest"
     city-timezones: "npm:^1.2.1"
+    date-fns: "npm:^3.6.0"
     date-fns-tz: "npm:^3.2.0"
     dotenv-checker: "npm:^1.1.5"
     eslint: "npm:9.36.0"
@@ -25597,6 +25623,19 @@ __metadata:
   languageName: node
   linkType: hard
 
+"form-data@npm:^4.0.4":
+  version: 4.0.5
+  resolution: "form-data@npm:4.0.5"
+  dependencies:
+    asynckit: "npm:^0.4.0"
+    combined-stream: "npm:^1.0.8"
+    es-set-tostringtag: "npm:^2.1.0"
+    hasown: "npm:^2.0.2"
+    mime-types: "npm:^2.1.12"
+  checksum: 10/52ecd6e927c8c4e215e68a7ad5e0f7c1031397439672fd9741654b4a94722c4182e74cc815b225dcb5be3f4180f36428f67c6dd39eaa98af0dcfdd26c00c19cd
+  languageName: node
+  linkType: hard
+
 "form-data@npm:~2.3.2":
   version: 2.3.3
   resolution: "form-data@npm:2.3.3"
@@ -36881,7 +36920,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-i18next@npm:^12.2.0":
+"react-i18next@npm:^12.2.0, react-i18next@npm:^12.3.1":
   version: 12.3.1
   resolution: "react-i18next@npm:12.3.1"
   dependencies: