diff --git a/.github/workflows/deploy.yml b/.github/workflows/docs.yml
similarity index 100%
rename from .github/workflows/deploy.yml
rename to .github/workflows/docs.yml
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..66db2f9
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,34 @@
+name: Lint, format, and test
+
+on:
+  pull_request:
+    branches: [main]
+
+jobs:
+  lint:
+    name: Lint and format
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Bun
+        uses: oven-sh/setup-bun@v1
+
+      - name: Lint and format the code
+        run: bunx biome ci --linter-enabled=true --formatter-enabled=true .
+
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up Bun
+        uses: oven-sh/setup-bun@v1
+
+      - name: Test the code
+        run: bun test
diff --git a/.husky/pre-commit b/.husky/pre-commit
new file mode 100755
index 0000000..1d67559
--- /dev/null
+++ b/.husky/pre-commit
@@ -0,0 +1,4 @@
+#!/usr/bin/env sh
+. "$(dirname -- "$0")/_/husky.sh"
+
+bun lint-staged
diff --git a/.vscode/settings.json b/.vscode/settings.json
index ff30c44..78664b2 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,3 +1,3 @@
 {
-    "editor.tabSize": 2
-}
\ No newline at end of file
+  "editor.tabSize": 2
+}
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index fecf225..78f5441 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -12,24 +12,12 @@ Hey there! We're thrilled that you'd like to contribute to this project. Your he
 > [!NOTE]
 > **Windows users**: see [special note](#special-note-for-windows-users) below.
 
-This project uses [Bun](https://bun.sh) as a runtime as well as a package manager. You'll need to install it and use as your package manager for this project. it We recommend using [antfu/ni](https://github.com/antfu/ni) to avoid worrying about package managers when switching projects.
+This project uses [Bun](https://bun.sh) as a runtime as well as a package manager. It's a modern, fast, and lightweight alternative to [Node.js](https://nodejs.org/en/) and [npm](https://www.npmjs.com/). To install Bun, run the following command:
 
-We will use `ni`'s commands in the following code snippets. If you are not using it, you can run `bun i` instead of `ni`, and `bun run` instead of `nr`.
-
-* **Install the latest version of [Bun](https://bun.sh)**
   ```sh
   curl -fsSL https://bun.sh/install | bash
   ```
 
-* **Install [@antfu/ni](https://github.com/antfu/ni)**
-  ```sh
-  bun i -g @antfu/ni
-  ```
-
-* **Install dependencies**
-  ```sh
-  ni
-  ```
 
 ### Special note for Windows users
 
@@ -37,33 +25,27 @@ This guide assumes you are using a Unix-like environment, since [Bun is working
 
 ## 💡 Commands
 
-### `nr dev`
-
-Start the development environment.
-
-If it's a Node.js package, it will start the build process in watch mode, or [stub the passive watcher when using `unbuild`](https://antfu.me/posts/publish-esm-and-cjs#stubbing).
+### `bun dev`
 
-If it's a frontend project, it usually starts the dev server. You can then develop and see the changes in real time.
+Start the development environment in watch mode.
 
-### `nr play`
+### `bun build`
 
-If it's a Node.js package, it starts a dev server for the playground. The code is usually under `playground/`.
+Build the project for production. The result is under `dist/`.
 
-### `nr build`
+### `bun lint`
 
-Build the project for production. The result is usually under `dist/`.
+We use [Biome](https://biomejs.dev/) for **both linting and formatting**. It is an ultra-fast, Rust based linter and formatter. 
+It also lints JSON.
 
-### `nr lint`
-
-We use [ESLint](https://eslint.org/) for **both linting and formatting**. It also lints for JSON, YAML and Markdown files if exists.
-
-You can run `nr lint --fix` to let ESLint formats and lints the code.
-
-Learn more about the [ESLint Setup](#eslint).
+You can run `bun lint --apply` to apply any safe fixes automatically.
 
 [**We don't use Prettier**](#no-prettier).
 
-### `nr test`
+### `bun test`
+
+> [!NOTE]
+> This is just a placeholder for now. We will add more details later once tests are formally added.
 
 Run the tests. We mostly using [Vitest](https://vitest.dev/) - a replacement of [Jest](https://jestjs.io/).
 
@@ -75,13 +57,13 @@ Vitest runs in [watch mode by default](https://vitest.dev/guide/features.html#wa
 
 For some projects, we might have multiple types of tests set up. For example `nr test:unit` for unit tests, `nr test:e2e` for end-to-end tests. `nr test` commonly run them together, you can run them separately as needed.
 
-### `nr docs`
+### `bun docs`
 
-If the project contains documentation, you can run `nr docs` to start the documentation dev server. Use `nr docs:build` to build the docs for production.
+Start the documentation dev server. Use `bun docs:build` to build the docs for production.
 
-### `nr`
+### `bun run`
 
-For more, you can run bare `nr`, which will prompt a list of all available scripts.
+Print a full list of available scripts.
 
 ## 🙌 The Road to a Great Pull Request
 
@@ -143,7 +125,7 @@ When ready to publish a new release, we run `nr release`. It prompts a list for
 
 There are two kinds of publishing setups, both performed by `nr release`.
 
-<table><tr><td width="500px" valign="top">
+<table><tr><td>
 
 #### Build Locally
 
@@ -161,7 +143,7 @@ In `package.json`, we usually have:
 
 So whenever you run `npm publish`, it will make sure you have the latest change in the distribution.
 
-</td><td width="500px" valign="top">
+</td><td>
 
 #### Build on CI
 
@@ -177,38 +159,41 @@ Changelogs are always generated by GitHub Actions.
 
 ## 📖 References
 
-### ESLint
+### Lint
 
-We use [ESLint](https://eslint.org/) for both linting and formatting with [`antfu/eslint-config`](https://github.com/antfu/eslint-config).
+We use [Biome](https://biomejs.dev/) for both linting and formatting with [a few custom rules](./biome.json). It is an ultra-fast, Rust based linter and formatter.
 
-<table><tr><td width="500px" valign="top">
+<table><tr><td>
 
 #### IDE Setup
 
-We recommend using [VS Code](https://code.visualstudio.com/) along with the [ESLint extension](https://marketplace.visualstudio.com/items?itemName=dbaeumer.vscode-eslint).
+We recommend using [VS Code](https://code.visualstudio.com/) along with the [Biome extension](https://marketplace.visualstudio.com/items?itemName=biomejs.biome).
 
 With the settings on the right, you can have auto fix and formatting when you save the code you are editing.
 
-</td><td width="500px"><br>
+</td><td><br>
 
 VS Code's `settings.json`
 
 ```json
 {
+  "editor.defaultFormatter": "biomejs.biome",
+  "editor.formatOnSave": true,
   "editor.codeActionsOnSave": {
-    "source.fixAll": false,
-    "source.fixAll.eslint": true
+    "quickfix.biome": true
   }
 }
 ```
 
 </td></tr></table>
 
-### ⚠️ No Prettier
-
-Since ESLint is already configured to format the code, there is no need to duplicate the functionality with Prettier ([*Why I don't Use Prettier*](https://antfu.me/posts/why-not-prettier)). To format the code, you can run `nr lint --fix` or referring the [ESLint section](#eslint) for IDE Setup.
+### No Prettier
 
-If you have Prettier installed in your editor, we recommend you disable it when working on the project to avoid conflict.
+> [!WARNING]
+> Since ESLint is already configured to format the code, there is no need to duplicate the functionality with Prettier ([*Why I don't Use Prettier*](https://antfu.me/posts/why-not-prettier)). To format the code, you can run `bun lint --apply` or refer to the [Lint section](#lint) for IDE Setup.
+>
+> If you have Prettier installed in your editor, we recommend you disable it when working on the project to avoid conflict.
+> Instead, you may use the [Biome VS Code extension](https://marketplace.visualstudio.com/items?itemName=biomejs.biome).
 
 ## 🗒 Additional Info
 
@@ -226,17 +211,3 @@ In case you are interested in, here are some interesting tools, many of which in
   - [esno](https://github.com/antfu/esno) - TypeScript runner
   - [taze](https://github.com/antfu/taze) - dependency updater
   - [bumpp](https://github.com/antfu/bumpp) - version bumpper
-
-In addition of `ni`, here is a few shell aliases to be even lazier:
-
-```bash
-alias d="nr dev"
-alias b="nr build"
-alias t="nr test"
-alias tu="nr test -u"
-alias p="nr play"
-alias c="nr typecheck"
-alias lint="nr lint"
-alias lintf="nr lint --fix"
-alias release="nr release"
-```
\ No newline at end of file
diff --git a/bun.lockb b/bun.lockb
index e90ad26..1202caa 100755
Binary files a/bun.lockb and b/bun.lockb differ
diff --git a/db/config.ts b/db/config.ts
index 83dda5b..1ed4651 100644
--- a/db/config.ts
+++ b/db/config.ts
@@ -1,18 +1,18 @@
-import type { Config } from "drizzle-kit";
+import type { Config } from 'drizzle-kit';
 export const dbCredentials = {
-    host: process.env.POSTGRES_HOST || "0.0.0.0",
-    port: parseInt(process.env.POSTGRES_PORT || '5432'),
-    user: process.env.POSTGRES_USER || "postgres",
-    password: process.env.POSTGRES_PASSWORD || "postgres",
-    database: process.env.POSTGRES_DB || "medium"
-}
+  host: process.env.POSTGRES_HOST || '0.0.0.0',
+  port: parseInt(process.env.POSTGRES_PORT || '5432'),
+  user: process.env.POSTGRES_USER || 'postgres',
+  password: process.env.POSTGRES_PASSWORD || 'postgres',
+  database: process.env.POSTGRES_DB || 'medium',
+};
 
 export const dbCredentialsString = `postgres://${dbCredentials.user}:${dbCredentials.password}@${dbCredentials.host}:${dbCredentials.port}/${dbCredentials.database}`;
 
 export default {
-    out: "./src/db/migrations",
-    schema: "**/*.schema.ts",
-    breakpoints: false,
-    driver: "pg",
-    dbCredentials
+  out: './src/db/migrations',
+  schema: '**/*.schema.ts',
+  breakpoints: false,
+  driver: 'pg',
+  dbCredentials,
 } satisfies Config;
diff --git a/db/migrations/meta/0000_snapshot.json b/db/migrations/meta/0000_snapshot.json
index 7c09e13..354ebd1 100644
--- a/db/migrations/meta/0000_snapshot.json
+++ b/db/migrations/meta/0000_snapshot.json
@@ -72,4 +72,4 @@
     "tables": {},
     "columns": {}
   }
-}
\ No newline at end of file
+}
diff --git a/db/migrations/meta/_journal.json b/db/migrations/meta/_journal.json
index 31eae40..51409b4 100644
--- a/db/migrations/meta/_journal.json
+++ b/db/migrations/meta/_journal.json
@@ -10,4 +10,4 @@
       "breakpoints": false
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/db/migrations/migrate.ts b/db/migrations/migrate.ts
index 49ffe7b..8448dd3 100644
--- a/db/migrations/migrate.ts
+++ b/db/migrations/migrate.ts
@@ -1,5 +1,7 @@
-import {drizzle} from "drizzle-orm/postgres-js";
-import {migrate} from "drizzle-orm/postgres-js/migrator";
-import {migrationClient} from "@/database.providers";
+import { drizzle } from 'drizzle-orm/postgres-js';
+import { migrate } from 'drizzle-orm/postgres-js/migrator';
+import { migrationClient } from '@/database.providers';
 
-await migrate(drizzle(migrationClient), {migrationsFolder: `${import.meta.dir}`});
+await migrate(drizzle(migrationClient), {
+  migrationsFolder: `${import.meta.dir}`,
+});
diff --git a/db/seed.ts b/db/seed.ts
index 01c482c..5d17cbc 100644
--- a/db/seed.ts
+++ b/db/seed.ts
@@ -1,20 +1,20 @@
 import { exit } from 'process';
 import { db } from '@/database.providers';
-import {users} from "@/users/users.schema";
+import { users } from '@/users/users.schema';
 
 const data = {
-    id: users.id.default,
-    email: 'test@email.com',
-    username: 'test',
-    password: 'test',
-    bio: 'test',
-    image: 'test',
-}
-console.log("Inserting user: ", data)
-await db.insert(users).values(data)
-console.log("User inserted")
+  id: users.id.default,
+  email: 'test@email.com',
+  username: 'test',
+  password: 'test',
+  bio: 'test',
+  image: 'test',
+};
+console.log('Inserting user: ', data);
+await db.insert(users).values(data);
+console.log('User inserted');
 
 const userResult = await db.select().from(users);
-console.log("User result: ", userResult);
+console.log('User result: ', userResult);
 
 exit(0);
diff --git a/docs/.vitepress/config.mts b/docs/.vitepress/config.mts
index 7bbc6bc..045ab89 100644
--- a/docs/.vitepress/config.mts
+++ b/docs/.vitepress/config.mts
@@ -1,14 +1,14 @@
-import { defineConfig } from 'vitepress'
+import { defineConfig } from 'vitepress';
 
 // https://vitepress.dev/reference/site-config
 export default defineConfig({
-  title: "RealWorld Elysia Docs",
-  description: "A Vite Press docs of Real World",
+  title: 'RealWorld Elysia Docs',
+  description: 'A Vite Press docs of Real World',
   themeConfig: {
     // https://vitepress.dev/reference/default-theme-config
     nav: [
       { text: 'Home', link: '/' },
-      { text: 'Examples', link: '/markdown-examples' }
+      { text: 'Examples', link: '/markdown-examples' },
     ],
 
     sidebar: [
@@ -16,13 +16,13 @@ export default defineConfig({
         text: 'Examples',
         items: [
           { text: 'Markdown Examples', link: '/markdown-examples' },
-          { text: 'Runtime API Examples', link: '/api-examples' }
-        ]
-      }
+          { text: 'Runtime API Examples', link: '/api-examples' },
+        ],
+      },
     ],
 
     socialLinks: [
-      { icon: 'github', link: 'https://github.com/vuejs/vitepress' }
-    ]
-  }
-})
+      { icon: 'github', link: 'https://github.com/vuejs/vitepress' },
+    ],
+  },
+});
diff --git a/package.json b/package.json
index 83bd439..4b7d7c4 100644
--- a/package.json
+++ b/package.json
@@ -5,7 +5,9 @@
     "start": "bun run src/main.ts",
     "dev": "bun run --watch src/main.ts",
     "test": "echo \"Error: no test specified\" && exit 1",
-    "docs:dev": "vitepress dev docs",
+    "format": "biome format --write .",
+    "lint": "biome lint .",
+    "docs": "vitepress dev docs",
     "docs:build": "vitepress build docs",
     "docs:preview": "vitepress preview docs",
     "db:up": "./scripts/create-start-container-with-env.sh",
@@ -13,7 +15,8 @@
     "db:migrate": "bun run db/migrations/migrate.ts",
     "db:push": "bun drizzle-kit push:pg --config=db/config.ts",
     "db:seed": "bun run db/seed.ts",
-    "db:studio": "bun drizzle-kit studio --config=db/config.ts"
+    "db:studio": "bun drizzle-kit studio --config=db/config.ts",
+    "prepare": "husky install"
   },
   "dependencies": {
     "drizzle-orm": "^0.28.6",
@@ -22,8 +25,11 @@
     "postgres": "^3.3.5"
   },
   "devDependencies": {
+    "@biomejs/biome": "1.2.2",
     "bun-types": "latest",
     "drizzle-kit": "^0.19.13",
+    "husky": "^8.0.3",
+    "lint-staged": "^14.0.1",
     "pg": "^8.11.3",
     "vitepress": "^1.0.0-rc.15"
   },
@@ -31,5 +37,9 @@
     "typescript": "^5.0.0"
   },
   "module": "src/index.ts",
-  "type": "module"
+  "type": "module",
+  "lint-staged": {
+    "*": "biome format --write",
+    "*.ts": "biome lint --apply"
+  }
 }
diff --git a/renovate.json b/renovate.json
index a6f8372..a325100 100644
--- a/renovate.json
+++ b/renovate.json
@@ -1,13 +1,8 @@
 {
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
-  "extends": [
-    "config:base",
-    ":disableDependencyDashboard"
-  ],
+  "extends": ["config:base", ":disableDependencyDashboard"],
   "vulnerabilityAlerts": {
     "automerge": true,
-    "labels": [
-      "security"
-    ]
+    "labels": ["security"]
   }
-}
\ No newline at end of file
+}
diff --git a/src/app.module.ts b/src/app.module.ts
index c294f51..01bc8e0 100644
--- a/src/app.module.ts
+++ b/src/app.module.ts
@@ -1,8 +1,8 @@
 // the file name is in the spirit of NestJS, where app module is the device in charge of putting together all the pieces of the app
 // see: https://docs.nestjs.com/modules
 
-import { Elysia } from "elysia";
-import { usersPlugin } from "./users/users.plugin";
+import { Elysia } from 'elysia';
+import { usersPlugin } from './users/users.plugin';
 
 /**
  * Add all plugins to the app
@@ -10,5 +10,5 @@ import { usersPlugin } from "./users/users.plugin";
 export const setupApp = () => {
   return new Elysia()
     .use(usersPlugin)
-    .post("/", ({ store }) => store.usersService.findAll());
+    .post('/', ({ store }) => store.usersService.findAll());
 };
diff --git a/src/database.providers.ts b/src/database.providers.ts
index 6d94c51..bab3f20 100644
--- a/src/database.providers.ts
+++ b/src/database.providers.ts
@@ -1,6 +1,6 @@
-import { drizzle, PostgresJsDatabase } from "drizzle-orm/postgres-js";
-import postgres from "postgres";
-import { dbCredentialsString } from "@db/config";
+import { dbCredentialsString } from '@db/config';
+import { PostgresJsDatabase, drizzle } from 'drizzle-orm/postgres-js';
+import postgres from 'postgres';
 
 // for migrations
 export const migrationClient = postgres(dbCredentialsString, { max: 1 });
diff --git a/src/main.ts b/src/main.ts
index 0ff9bad..917a78b 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -1,8 +1,8 @@
-import { Elysia } from "elysia";
-import { setupApp } from "@/app.module";
+import { setupApp } from '@/app.module';
+import { Elysia } from 'elysia';
 
-const app = new Elysia({ prefix: "/api" }).use(setupApp).listen(3000);
+const app = new Elysia({ prefix: '/api' }).use(setupApp).listen(3000);
 
 console.log(
-  `🦊 Elysia is running at ${app.server?.hostname}:${app.server?.port}`
+  `🦊 Elysia is running at ${app.server?.hostname}:${app.server?.port}`,
 );
diff --git a/src/users/users.module.ts b/src/users/users.module.ts
index fc33177..2a592d9 100644
--- a/src/users/users.module.ts
+++ b/src/users/users.module.ts
@@ -1,7 +1,7 @@
-import { Elysia } from "elysia";
-import { UsersService } from "@/users/users.service";
-import { UsersRepository } from "@/users/users.repository";
-import { db } from "@/database.providers";
+import { db } from '@/database.providers';
+import { UsersRepository } from '@/users/users.repository';
+import { UsersService } from '@/users/users.service';
+import { Elysia } from 'elysia';
 
 export const setupUsers = () => {
   const usersRepository = new UsersRepository(db);
diff --git a/src/users/users.plugin.ts b/src/users/users.plugin.ts
index 9a0e869..b07d442 100644
--- a/src/users/users.plugin.ts
+++ b/src/users/users.plugin.ts
@@ -1,7 +1,7 @@
-import { Elysia } from "elysia";
-import { setupUsers } from "@/users/users.module";
+import { setupUsers } from '@/users/users.module';
+import { Elysia } from 'elysia';
 
-export const usersPlugin = new Elysia({ prefix: "/users" })
+export const usersPlugin = new Elysia({ prefix: '/users' })
   .use(setupUsers)
-  .post("/", ({ store }) => store.usersService.findAll())
-  .post("/login", ({ store }) => store.usersService.findAll());
+  .post('/', ({ store }) => store.usersService.findAll())
+  .post('/login', ({ store }) => store.usersService.findAll());
diff --git a/src/users/users.repository.ts b/src/users/users.repository.ts
index 5404b02..16048f5 100644
--- a/src/users/users.repository.ts
+++ b/src/users/users.repository.ts
@@ -1,8 +1,8 @@
 // users.repository.ts
 // in charge of database interactions
 
-import { users } from "./users.schema";
-import { PostgresJsDatabase } from "drizzle-orm/postgres-js";
+import { PostgresJsDatabase } from 'drizzle-orm/postgres-js';
+import { users } from './users.schema';
 
 export class UsersRepository {
   // the type here is
diff --git a/src/users/users.schema.ts b/src/users/users.schema.ts
index bade696..aea35d3 100644
--- a/src/users/users.schema.ts
+++ b/src/users/users.schema.ts
@@ -1,25 +1,25 @@
-import { sql } from "drizzle-orm";
-import { pgTable, text, date, serial } from "drizzle-orm/pg-core";
-import { createInsertSchema, createSelectSchema } from "drizzle-typebox";
-import { Type } from "@sinclair/typebox";
+import { Type } from '@sinclair/typebox';
+import { sql } from 'drizzle-orm';
+import { date, pgTable, serial, text } from 'drizzle-orm/pg-core';
+import { createInsertSchema, createSelectSchema } from 'drizzle-typebox';
 
-export const users = pgTable("users", {
-  id: serial("id").primaryKey(),
-  email: text("email").notNull(),
-  bio: text("bio").notNull(),
-  image: text("image").notNull(),
-  password: text("password").notNull(),
-  username: text("username").notNull(),
-  created_at: date("created_at").default(sql`CURRENT_DATE`),
-  updated_at: date("updated_at").default(sql`CURRENT_DATE`),
+export const users = pgTable('users', {
+  id: serial('id').primaryKey(),
+  email: text('email').notNull(),
+  bio: text('bio').notNull(),
+  image: text('image').notNull(),
+  password: text('password').notNull(),
+  username: text('username').notNull(),
+  created_at: date('created_at').default(sql`CURRENT_DATE`),
+  updated_at: date('updated_at').default(sql`CURRENT_DATE`),
 });
 
 // Schema for inserting a user - can be used to validate API requests
 const insertUserSchemaRaw = createInsertSchema(users);
 export const insertUserSchema = Type.Omit(insertUserSchemaRaw, [
-  "id",
-  "created_at",
-  "updated_at",
+  'id',
+  'created_at',
+  'updated_at',
 ]);
 
 // Schema for selecting a user - can be used to validate API responses
diff --git a/src/users/users.service.ts b/src/users/users.service.ts
index 038b11b..2e9bede 100644
--- a/src/users/users.service.ts
+++ b/src/users/users.service.ts
@@ -1,7 +1,7 @@
 // users.service.ts
 // in charge of business logic - generate slug, fetch data from other services, cache something, etc.
 
-import { UsersRepository } from "@/users/users.repository";
+import { UsersRepository } from '@/users/users.repository';
 
 export class UsersService {
   constructor(private readonly repository: UsersRepository) {}