diff --git a/apps/backend-e2e/jest.config.ts b/apps/backend-e2e/jest.config.ts
index b098397..e83c7b3 100644
--- a/apps/backend-e2e/jest.config.ts
+++ b/apps/backend-e2e/jest.config.ts
@@ -1,19 +1,19 @@
 /* eslint-disable */
 export default {
-  displayName: 'backend-e2e',
-  preset: '../../jest.preset.js',
-  globalSetup: '<rootDir>/src/support/global-setup.ts',
-  globalTeardown: '<rootDir>/src/support/global-teardown.ts',
-  setupFiles: ['<rootDir>/src/support/test-setup.ts'],
-  testEnvironment: 'node',
-  transform: {
-    '^.+\\.[tj]s$': [
-      'ts-jest',
-      {
-        tsconfig: '<rootDir>/tsconfig.spec.json',
-      },
-    ],
-  },
-  moduleFileExtensions: ['ts', 'js', 'html'],
-  coverageDirectory: '../../coverage/backend-e2e',
+	displayName: "backend-e2e",
+	preset: "../../jest.preset.js",
+	globalSetup: "<rootDir>/src/support/global-setup.ts",
+	globalTeardown: "<rootDir>/src/support/global-teardown.ts",
+	setupFiles: ["<rootDir>/src/support/test-setup.ts"],
+	testEnvironment: "node",
+	transform: {
+		"^.+\\.[tj]s$": [
+			"ts-jest",
+			{
+				tsconfig: "<rootDir>/tsconfig.spec.json",
+			},
+		],
+	},
+	moduleFileExtensions: ["ts", "js", "html"],
+	coverageDirectory: "../../coverage/backend-e2e",
 };
diff --git a/apps/backend-e2e/src/backend/backend.spec.ts b/apps/backend-e2e/src/backend/backend.spec.ts
index e8ac2a6..c0e042a 100644
--- a/apps/backend-e2e/src/backend/backend.spec.ts
+++ b/apps/backend-e2e/src/backend/backend.spec.ts
@@ -1,10 +1,10 @@
-import axios from 'axios';
+import axios from "axios";
 
-describe('GET /api', () => {
-  it('should return a message', async () => {
-    const res = await axios.get(`/api`);
+describe("GET /api", () => {
+	it("should return a message", async () => {
+		const res = await axios.get(`/api`);
 
-    expect(res.status).toBe(200);
-    expect(res.data).toEqual({ message: 'Hello API' });
-  });
+		expect(res.status).toBe(200);
+		expect(res.data).toEqual({ message: "Hello API" });
+	});
 });
diff --git a/apps/backend-e2e/src/support/global-setup.ts b/apps/backend-e2e/src/support/global-setup.ts
index c1f5144..420feeb 100644
--- a/apps/backend-e2e/src/support/global-setup.ts
+++ b/apps/backend-e2e/src/support/global-setup.ts
@@ -1,10 +1,10 @@
 /* eslint-disable */
 var __TEARDOWN_MESSAGE__: string;
 
-module.exports = async function () {
-  // Start services that that the app needs to run (e.g. database, docker-compose, etc.).
-  console.log('\nSetting up...\n');
+module.exports = async () => {
+	// Start services that that the app needs to run (e.g. database, docker-compose, etc.).
+	console.log("\nSetting up...\n");
 
-  // Hint: Use `globalThis` to pass variables to global teardown.
-  globalThis.__TEARDOWN_MESSAGE__ = '\nTearing down...\n';
+	// Hint: Use `globalThis` to pass variables to global teardown.
+	globalThis.__TEARDOWN_MESSAGE__ = "\nTearing down...\n";
 };
diff --git a/apps/backend-e2e/src/support/global-teardown.ts b/apps/backend-e2e/src/support/global-teardown.ts
index 32ea345..5fea12d 100644
--- a/apps/backend-e2e/src/support/global-teardown.ts
+++ b/apps/backend-e2e/src/support/global-teardown.ts
@@ -1,7 +1,7 @@
 /* eslint-disable */
 
-module.exports = async function () {
-  // Put clean up logic here (e.g. stopping services, docker-compose, etc.).
-  // Hint: `globalThis` is shared between setup and teardown.
-  console.log(globalThis.__TEARDOWN_MESSAGE__);
+module.exports = async () => {
+	// Put clean up logic here (e.g. stopping services, docker-compose, etc.).
+	// Hint: `globalThis` is shared between setup and teardown.
+	console.log(globalThis.__TEARDOWN_MESSAGE__);
 };
diff --git a/apps/backend-e2e/src/support/test-setup.ts b/apps/backend-e2e/src/support/test-setup.ts
index 07f2870..21381b2 100644
--- a/apps/backend-e2e/src/support/test-setup.ts
+++ b/apps/backend-e2e/src/support/test-setup.ts
@@ -1,10 +1,10 @@
 /* eslint-disable */
 
-import axios from 'axios';
+import axios from "axios";
 
-module.exports = async function () {
-  // Configure axios for tests to use.
-  const host = process.env.HOST ?? 'localhost';
-  const port = process.env.PORT ?? '3000';
-  axios.defaults.baseURL = `http://${host}:${port}`;
+module.exports = async () => {
+	// Configure axios for tests to use.
+	const host = process.env.HOST ?? "localhost";
+	const port = process.env.PORT ?? "3000";
+	axios.defaults.baseURL = `http://${host}:${port}`;
 };
diff --git a/apps/backend/jest.config.ts b/apps/backend/jest.config.ts
index b6f3f64..1d54316 100644
--- a/apps/backend/jest.config.ts
+++ b/apps/backend/jest.config.ts
@@ -1,11 +1,11 @@
 /* eslint-disable */
 export default {
-  displayName: 'backend',
-  preset: '../../jest.preset.js',
-  testEnvironment: 'node',
-  transform: {
-    '^.+\\.[tj]s$': ['ts-jest', { tsconfig: '<rootDir>/tsconfig.spec.json' }],
-  },
-  moduleFileExtensions: ['ts', 'js', 'html'],
-  coverageDirectory: '../../coverage/apps/backend',
+	displayName: "backend",
+	preset: "../../jest.preset.js",
+	testEnvironment: "node",
+	transform: {
+		"^.+\\.[tj]s$": ["ts-jest", { tsconfig: "<rootDir>/tsconfig.spec.json" }],
+	},
+	moduleFileExtensions: ["ts", "js", "html"],
+	coverageDirectory: "../../coverage/apps/backend",
 };
diff --git a/apps/backend/src/app/app.controller.spec.ts b/apps/backend/src/app/app.controller.spec.ts
index de8007e..f020712 100644
--- a/apps/backend/src/app/app.controller.spec.ts
+++ b/apps/backend/src/app/app.controller.spec.ts
@@ -1,22 +1,22 @@
-import { Test, TestingModule } from '@nestjs/testing';
+import { Test, TestingModule } from "@nestjs/testing";
 
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
+import { AppController } from "./app.controller";
+import { AppService } from "./app.service";
 
-describe('AppController', () => {
-  let app: TestingModule;
+describe("AppController", () => {
+	let app: TestingModule;
 
-  beforeAll(async () => {
-    app = await Test.createTestingModule({
-      controllers: [AppController],
-      providers: [AppService],
-    }).compile();
-  });
+	beforeAll(async () => {
+		app = await Test.createTestingModule({
+			controllers: [AppController],
+			providers: [AppService],
+		}).compile();
+	});
 
-  describe('getData', () => {
-    it('should return "Hello API"', () => {
-      const appController = app.get<AppController>(AppController);
-      expect(appController.getData()).toEqual({ message: 'Hello API' });
-    });
-  });
+	describe("getData", () => {
+		it('should return "Hello API"', () => {
+			const appController = app.get<AppController>(AppController);
+			expect(appController.getData()).toEqual({ message: "Hello API" });
+		});
+	});
 });
diff --git a/apps/backend/src/app/app.controller.ts b/apps/backend/src/app/app.controller.ts
index dff210a..f79e654 100644
--- a/apps/backend/src/app/app.controller.ts
+++ b/apps/backend/src/app/app.controller.ts
@@ -1,13 +1,13 @@
-import { Controller, Get } from '@nestjs/common';
+import { Controller, Get } from "@nestjs/common";
 
-import { AppService } from './app.service';
+import { AppService } from "./app.service";
 
 @Controller()
 export class AppController {
-  constructor(private readonly appService: AppService) {}
+	constructor(private readonly appService: AppService) {}
 
-  @Get()
-  getData() {
-    return this.appService.getData();
-  }
+	@Get()
+	getData() {
+		return this.appService.getData();
+	}
 }
diff --git a/apps/backend/src/app/app.module.ts b/apps/backend/src/app/app.module.ts
index 6a9bc16..4afa69d 100644
--- a/apps/backend/src/app/app.module.ts
+++ b/apps/backend/src/app/app.module.ts
@@ -1,11 +1,12 @@
-import { Module } from '@nestjs/common';
+import { Module } from "@nestjs/common";
 
-import { AppController } from './app.controller';
-import { AppService } from './app.service';
+import { AppController } from "./app.controller";
+import { AppService } from "./app.service";
+import { DbModule } from "./db/db.module";
 
 @Module({
-  imports: [],
-  controllers: [AppController],
-  providers: [AppService],
+	imports: [DbModule],
+	controllers: [AppController],
+	providers: [AppService],
 })
 export class AppModule {}
diff --git a/apps/backend/src/app/app.service.spec.ts b/apps/backend/src/app/app.service.spec.ts
index 42cf0a2..3918cbf 100644
--- a/apps/backend/src/app/app.service.spec.ts
+++ b/apps/backend/src/app/app.service.spec.ts
@@ -1,21 +1,21 @@
-import { Test } from '@nestjs/testing';
+import { Test } from "@nestjs/testing";
 
-import { AppService } from './app.service';
+import { AppService } from "./app.service";
 
-describe('AppService', () => {
-  let service: AppService;
+describe("AppService", () => {
+	let service: AppService;
 
-  beforeAll(async () => {
-    const app = await Test.createTestingModule({
-      providers: [AppService],
-    }).compile();
+	beforeAll(async () => {
+		const app = await Test.createTestingModule({
+			providers: [AppService],
+		}).compile();
 
-    service = app.get<AppService>(AppService);
-  });
+		service = app.get<AppService>(AppService);
+	});
 
-  describe('getData', () => {
-    it('should return "Hello API"', () => {
-      expect(service.getData()).toEqual({ message: 'Hello API' });
-    });
-  });
+	describe("getData", () => {
+		it('should return "Hello API"', () => {
+			expect(service.getData()).toEqual({ message: "Hello API" });
+		});
+	});
 });
diff --git a/apps/backend/src/app/app.service.ts b/apps/backend/src/app/app.service.ts
index cd8cede..613794f 100644
--- a/apps/backend/src/app/app.service.ts
+++ b/apps/backend/src/app/app.service.ts
@@ -1,8 +1,8 @@
-import { Injectable } from '@nestjs/common';
+import { Injectable } from "@nestjs/common";
 
 @Injectable()
 export class AppService {
-  getData(): { message: string } {
-    return { message: 'Hello API' };
-  }
+	getData(): { message: string } {
+		return { message: "Hello API" };
+	}
 }
diff --git a/apps/backend/src/app/db/db.module.ts b/apps/backend/src/app/db/db.module.ts
new file mode 100644
index 0000000..e2b1172
--- /dev/null
+++ b/apps/backend/src/app/db/db.module.ts
@@ -0,0 +1,7 @@
+import { Module } from "@nestjs/common";
+import { DbService } from "./db.service";
+
+@Module({
+	providers: [DbService],
+})
+export class DbModule {}
diff --git a/apps/backend/src/app/db/db.service.spec.ts b/apps/backend/src/app/db/db.service.spec.ts
new file mode 100644
index 0000000..cab1b42
--- /dev/null
+++ b/apps/backend/src/app/db/db.service.spec.ts
@@ -0,0 +1,18 @@
+import { Test, TestingModule } from "@nestjs/testing";
+import { DbService } from "./db.service";
+
+describe("DbService", () => {
+	let service: DbService;
+
+	beforeEach(async () => {
+		const module: TestingModule = await Test.createTestingModule({
+			providers: [DbService],
+		}).compile();
+
+		service = module.get<DbService>(DbService);
+	});
+
+	it("should be defined", () => {
+		expect(service).toBeDefined();
+	});
+});
diff --git a/apps/backend/src/app/db/db.service.ts b/apps/backend/src/app/db/db.service.ts
new file mode 100644
index 0000000..56bb509
--- /dev/null
+++ b/apps/backend/src/app/db/db.service.ts
@@ -0,0 +1,4 @@
+import { Injectable } from "@nestjs/common";
+
+@Injectable()
+export class DbService {}
diff --git a/apps/backend/src/main.ts b/apps/backend/src/main.ts
index a124382..cb835f2 100644
--- a/apps/backend/src/main.ts
+++ b/apps/backend/src/main.ts
@@ -3,20 +3,20 @@
  * This is only a minimal backend to get started.
  */
 
-import { Logger } from '@nestjs/common';
-import { NestFactory } from '@nestjs/core';
+import { Logger } from "@nestjs/common";
+import { NestFactory } from "@nestjs/core";
 
-import { AppModule } from './app/app.module';
+import { AppModule } from "./app/app.module";
 
 async function bootstrap() {
-  const app = await NestFactory.create(AppModule);
-  const globalPrefix = 'api';
-  app.setGlobalPrefix(globalPrefix);
-  const port = process.env.PORT || 3000;
-  await app.listen(port);
-  Logger.log(
-    `🚀 Application is running on: http://localhost:${port}/${globalPrefix}`
-  );
+	const app = await NestFactory.create(AppModule);
+	const globalPrefix = "api";
+	app.setGlobalPrefix(globalPrefix);
+	const port = process.env.PORT || 3000;
+	await app.listen(port);
+	Logger.log(
+		`🚀 Application is running on: http://localhost:${port}/${globalPrefix}`,
+	);
 }
 
 bootstrap();
diff --git a/apps/frontend-e2e/cypress.config.ts b/apps/frontend-e2e/cypress.config.ts
index 43b60b1..cfde6a1 100644
--- a/apps/frontend-e2e/cypress.config.ts
+++ b/apps/frontend-e2e/cypress.config.ts
@@ -1,14 +1,14 @@
-import { nxE2EPreset } from '@nx/cypress/plugins/cypress-preset';
+import { nxE2EPreset } from "@nx/cypress/plugins/cypress-preset";
 
-import { defineConfig } from 'cypress';
+import { defineConfig } from "cypress";
 
 export default defineConfig({
-  e2e: {
-    ...nxE2EPreset(__filename, {
-      cypressDir: 'src',
-      webServerCommands: { default: 'nx run frontend:start' },
-      ciWebServerCommand: 'nx run frontend:serve-static',
-    }),
-    baseUrl: 'http://localhost:3000',
-  },
+	e2e: {
+		...nxE2EPreset(__filename, {
+			cypressDir: "src",
+			webServerCommands: { default: "nx run frontend:start" },
+			ciWebServerCommand: "nx run frontend:serve-static",
+		}),
+		baseUrl: "http://localhost:3000",
+	},
 });
diff --git a/apps/frontend-e2e/src/e2e/app.cy.ts b/apps/frontend-e2e/src/e2e/app.cy.ts
index 24d2f3f..27a86b1 100644
--- a/apps/frontend-e2e/src/e2e/app.cy.ts
+++ b/apps/frontend-e2e/src/e2e/app.cy.ts
@@ -1,13 +1,13 @@
-import { getGreeting } from '../support/app.po';
+import { getGreeting } from "../support/app.po";
 
-describe('frontend-e2e', () => {
-  beforeEach(() => cy.visit('/'));
+describe("frontend-e2e", () => {
+	beforeEach(() => cy.visit("/"));
 
-  it('should display welcome message', () => {
-    // Custom command example, see `../support/commands.ts` file
-    cy.login('my-email@something.com', 'myPassword');
+	it("should display welcome message", () => {
+		// Custom command example, see `../support/commands.ts` file
+		cy.login("my-email@something.com", "myPassword");
 
-    // Function helper example, see `../support/app.po.ts` file
-    getGreeting().contains(/Welcome/);
-  });
+		// Function helper example, see `../support/app.po.ts` file
+		getGreeting().contains(/Welcome/);
+	});
 });
diff --git a/apps/frontend-e2e/src/support/app.po.ts b/apps/frontend-e2e/src/support/app.po.ts
index 3293424..a413582 100644
--- a/apps/frontend-e2e/src/support/app.po.ts
+++ b/apps/frontend-e2e/src/support/app.po.ts
@@ -1 +1 @@
-export const getGreeting = () => cy.get('h1');
+export const getGreeting = () => cy.get("h1");
diff --git a/apps/frontend-e2e/src/support/commands.ts b/apps/frontend-e2e/src/support/commands.ts
index c421a3c..d3cedb1 100644
--- a/apps/frontend-e2e/src/support/commands.ts
+++ b/apps/frontend-e2e/src/support/commands.ts
@@ -12,15 +12,15 @@
 
 // eslint-disable-next-line @typescript-eslint/no-namespace
 declare namespace Cypress {
-  // eslint-disable-next-line @typescript-eslint/no-unused-vars
-  interface Chainable<Subject> {
-    login(email: string, password: string): void;
-  }
+	// eslint-disable-next-line @typescript-eslint/no-unused-vars
+	interface Chainable<Subject> {
+		login(email: string, password: string): void;
+	}
 }
 
 // -- This is a parent command --
-Cypress.Commands.add('login', (email, password) => {
-  console.log('Custom command example: Login', email, password);
+Cypress.Commands.add("login", (email, password) => {
+	console.log("Custom command example: Login", email, password);
 });
 //
 // -- This is a child command --
diff --git a/apps/frontend-e2e/src/support/e2e.ts b/apps/frontend-e2e/src/support/e2e.ts
index 1c1a9e7..ddf01ba 100644
--- a/apps/frontend-e2e/src/support/e2e.ts
+++ b/apps/frontend-e2e/src/support/e2e.ts
@@ -14,4 +14,4 @@
 // ***********************************************************
 
 // Import commands.ts using ES2015 syntax:
-import './commands';
+import "./commands";
diff --git a/apps/frontend/index.d.ts b/apps/frontend/index.d.ts
index 7ba08fa..c1d929d 100644
--- a/apps/frontend/index.d.ts
+++ b/apps/frontend/index.d.ts
@@ -1,6 +1,6 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
-declare module '*.svg' {
-  const content: any;
-  export const ReactComponent: any;
-  export default content;
+declare module "*.svg" {
+	const content: any;
+	export const ReactComponent: any;
+	export default content;
 }
diff --git a/apps/frontend/jest.config.ts b/apps/frontend/jest.config.ts
index e69b2a7..ce9edd7 100644
--- a/apps/frontend/jest.config.ts
+++ b/apps/frontend/jest.config.ts
@@ -1,11 +1,11 @@
 /* eslint-disable */
 export default {
-  displayName: 'frontend',
-  preset: '../../jest.preset.js',
-  transform: {
-    '^(?!.*\\.(js|jsx|ts|tsx|css|json)$)': '@nx/react/plugins/jest',
-    '^.+\\.[tj]sx?$': ['babel-jest', { presets: ['@nx/next/babel'] }],
-  },
-  moduleFileExtensions: ['ts', 'tsx', 'js', 'jsx'],
-  coverageDirectory: '../../coverage/apps/frontend',
+	displayName: "frontend",
+	preset: "../../jest.preset.js",
+	transform: {
+		"^(?!.*\\.(js|jsx|ts|tsx|css|json)$)": "@nx/react/plugins/jest",
+		"^.+\\.[tj]sx?$": ["babel-jest", { presets: ["@nx/next/babel"] }],
+	},
+	moduleFileExtensions: ["ts", "tsx", "js", "jsx"],
+	coverageDirectory: "../../coverage/apps/frontend",
 };
diff --git a/apps/frontend/src/app/api/hello/route.ts b/apps/frontend/src/app/api/hello/route.ts
index de70bac..d543cd8 100644
--- a/apps/frontend/src/app/api/hello/route.ts
+++ b/apps/frontend/src/app/api/hello/route.ts
@@ -1,3 +1,3 @@
 export async function GET(request: Request) {
-  return new Response('Hello, from API!');
+	return new Response("Hello, from API!");
 }
diff --git a/biome.json b/biome.json
new file mode 100644
index 0000000..abcf78a
--- /dev/null
+++ b/biome.json
@@ -0,0 +1,44 @@
+{
+  "$schema": "https://biomejs.dev/schemas/1.6.4/schema.json",
+  "organizeImports": {
+    "enabled": true
+  },
+  "files": {
+    "include": [
+      "./apps/**/*.ts"
+    ]
+  },
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git"
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "performance": {
+        "recommended": true,
+        "noDelete": "off"
+      },
+      "suspicious": {
+        "noExplicitAny": "warn"
+      },
+      "complexity": {
+        "useLiteralKeys": "off"
+      },
+      "style": {
+        "useImportType": "off"
+      }
+    }
+  },
+  "formatter": {
+    "indentStyle": "tab",
+    "indentWidth": 2,
+    "lineWidth": 80
+  },
+  "javascript": {
+    "parser": {
+      "unsafeParameterDecoratorsEnabled": true
+    }
+  }
+}
\ No newline at end of file
diff --git a/package.json b/package.json
index 37c765a..26d938a 100644
--- a/package.json
+++ b/package.json
@@ -2,11 +2,14 @@
   "name": "@app/source",
   "version": "0.0.0",
   "license": "MIT",
-  "scripts": {},
+  "scripts": {
+    "check": "biome check --skip-errors --apply apps"
+  },
   "private": true,
   "dependencies": {
     "@nestjs/common": "^10.4.1",
     "@nestjs/core": "^10.4.1",
+    "@nestjs/mapped-types": "*",
     "@nestjs/platform-express": "^10.4.1",
     "axios": "^1.7.4",
     "next": "14.2.3",
diff --git a/tsconfig.base.json b/tsconfig.base.json
index b73cce6..2bd3faf 100644
--- a/tsconfig.base.json
+++ b/tsconfig.base.json
@@ -10,11 +10,17 @@
     "importHelpers": true,
     "target": "es2015",
     "module": "esnext",
-    "lib": ["es2020", "dom"],
+    "lib": [
+      "es2020",
+      "dom"
+    ],
     "skipLibCheck": true,
     "skipDefaultLibCheck": true,
     "baseUrl": ".",
     "paths": {}
   },
-  "exclude": ["node_modules", "tmp"]
+  "exclude": [
+    "node_modules",
+    "tmp"
+  ]
 }