diff --git a/src/auth.ts b/src/auth.ts
new file mode 100644
index 0000000..626a562
--- /dev/null
+++ b/src/auth.ts
@@ -0,0 +1,24 @@
+import { betterAuth } from 'better-auth'
+import { prismaAdapter } from 'better-auth/adapters/prisma'
+import { username } from 'better-auth/plugins'
+
+import prismaClient from './utils/prisma-client'
+import { sendEmail } from 'utils/email'
+import forgorTemplate from 'utils/forgorTemplate'
+
+export const auth = betterAuth({
+  database: prismaAdapter(prismaClient, { provider: 'mysql' }),
+  user: { modelName: 'users' },
+  plugins: [username()],
+  emailVerification: {
+    sendOnSignUp: true,
+    autoSignInAfterVerification: true
+  },
+  emailAndPassword: {
+    enabled: true,
+    requireEmailVerification: true,
+    sendResetPassword: async ({ user, url, token }, request) => {
+      await sendEmail(user.email, 'Reset your password', forgorTemplate.replaceAll('{{forgor_link}}', url))
+    }
+  }
+})
diff --git a/src/env.d.ts b/src/env.d.ts
index e46db51..6ae6167 100644
--- a/src/env.d.ts
+++ b/src/env.d.ts
@@ -2,7 +2,7 @@
 declare namespace App {
   // Note: 'import {} from ""' syntax does not work in .d.ts files.
   interface Locals {
-    session: import('./src/utils/session').Session | null
-    user: import('./src/utils/session').User | null
+    user: import('better-auth').User | null
+    session: import('better-auth').Session | null
   }
 }
diff --git a/src/middleware.ts b/src/middleware.ts
index 60eabb2..17ce791 100644
--- a/src/middleware.ts
+++ b/src/middleware.ts
@@ -1,22 +1,18 @@
+import { auth } from 'auth'
 import { defineMiddleware } from 'astro:middleware'
-import { setSessionTokenCookie, deleteSessionTokenCookie, validateSessionToken, COOKIE_NAME } from 'utils/session'
 
 export const onRequest = defineMiddleware(async (context, next) => {
-  const token = context.cookies.get(COOKIE_NAME)?.value
-  if (!token) {
+  const isAuthed = await auth.api.getSession({
+    headers: context.request.headers
+  })
+
+  if (isAuthed) {
+    context.locals.user = isAuthed.user
+    context.locals.session = isAuthed.session
+  } else {
     context.locals.user = null
     context.locals.session = null
-    return next()
   }
 
-  const { session, user } = await validateSessionToken(token)
-  if (session !== null) {
-    setSessionTokenCookie(context.cookies, token, session.expiresAt)
-  } else {
-    deleteSessionTokenCookie(context.cookies)
-  }
-
-  context.locals.session = session
-  context.locals.user = user
   return next()
 })
diff --git a/src/pages/api/auth/[...all].ts b/src/pages/api/auth/[...all].ts
new file mode 100644
index 0000000..bd8b5bf
--- /dev/null
+++ b/src/pages/api/auth/[...all].ts
@@ -0,0 +1,6 @@
+import { auth } from 'auth'
+import type { APIRoute } from 'astro'
+
+export const ALL: APIRoute = async (ctx) => {
+  return auth.handler(ctx.request)
+}
diff --git a/src/utils/auth-client.ts b/src/utils/auth-client.ts
new file mode 100644
index 0000000..18f7a36
--- /dev/null
+++ b/src/utils/auth-client.ts
@@ -0,0 +1,7 @@
+import { createAuthClient } from 'better-auth/client'
+import { usernameClient } from 'better-auth/client/plugins'
+
+export const authClient = createAuthClient({
+  plugins: [usernameClient()]
+})
+export const { useSession, signIn, signUp, forgetPassword, resetPassword } = authClient
diff --git a/src/utils/email.ts b/src/utils/email.ts
new file mode 100644
index 0000000..ec9825c
--- /dev/null
+++ b/src/utils/email.ts
@@ -0,0 +1,14 @@
+import nodemailer from 'nodemailer'
+
+export const mailConfig = JSON.parse(import.meta.env.MAILSERVER || '{}')
+export const transporter = nodemailer.createTransport(mailConfig)
+
+export async function sendEmail(to: string, subject: string, html: string) {
+  const message = {
+    from: mailConfig.auth.user,
+    to,
+    subject,
+    html
+  }
+  await transporter.sendMail(message)
+}
diff --git a/src/utils/graphQLErrors.ts b/src/utils/graphQLErrors.ts
deleted file mode 100644
index ca2090a..0000000
--- a/src/utils/graphQLErrors.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-import { GraphQLError } from 'graphql'
-import { ApolloServerErrorCode } from '@apollo/server/errors'
-
-export const AuthenticationError = (message: string = 'Authentication Error') =>
-  new GraphQLError(message, { extensions: { code: 'UNAUTHENTICATED' } })
-
-export const ForbiddenError = (message: string = 'Forbidden') =>
-  new GraphQLError(message, { extensions: { code: 'FORBIDDEN' } })
-
-export const UserInputError = (message: string = 'Bad input') =>
-  new GraphQLError(message, {
-    extensions: { code: ApolloServerErrorCode.BAD_USER_INPUT }
-  })
diff --git a/src/utils/resolvers.ts b/src/utils/resolvers.ts
deleted file mode 100644
index b22189a..0000000
--- a/src/utils/resolvers.ts
+++ /dev/null
@@ -1,26 +0,0 @@
-import type { ResolverContext } from '@/graphql/apolloClientSSR'
-import { AuthenticationError, ForbiddenError } from './graphQLErrors'
-import prismaClient from 'prisma/client'
-import { COOKIE_NAME, validateSessionToken } from './session'
-
-export const checkAuth = (next) => async (root, args, context: ResolverContext, info) => {
-  const { user } = await validateSessionToken(context.cookies?.get(COOKIE_NAME)?.value)
-  if (!user) throw AuthenticationError()
-
-  return next(root, args, context, info)
-}
-
-export const checkPerm = (perm: string) => (next) => async (root, args, context: ResolverContext, info) => {
-  const { user } = await validateSessionToken(context.cookies?.get(COOKIE_NAME)?.value)
-  if (!user) throw AuthenticationError()
-
-  const { roles } = await prismaClient.users.findUnique({
-    where: { username: user?.username },
-    include: { roles: { include: { role: { select: { permissions: true } } } } }
-  })
-  const perms = roles.map((r) => r.role.permissions).flat()
-
-  if (!perms.includes(perm)) throw ForbiddenError()
-
-  return next(root, args, context, info)
-}
diff --git a/src/utils/session.ts b/src/utils/session.ts
deleted file mode 100644
index 1115bce..0000000
--- a/src/utils/session.ts
+++ /dev/null
@@ -1,90 +0,0 @@
-// Taken from https://lucia-auth.com
-import { encodeBase32LowerCaseNoPadding, encodeHexLowerCase } from '@oslojs/encoding'
-import { sha256 } from '@oslojs/crypto/sha2'
-import { Argon2id } from 'oslo/password'
-import type { AstroCookies } from 'astro'
-
-import prismaClient from 'prisma/client'
-import { type users, type session } from '@prisma/client'
-
-export const argon2id = new Argon2id()
-export const COOKIE_NAME = 'astro_soc'
-
-export function generateSessionToken(): string {
-  const bytes = new Uint8Array(20)
-  crypto.getRandomValues(bytes)
-  const token = encodeBase32LowerCaseNoPadding(bytes)
-  return token
-}
-
-export async function createSession(username: string, token: string): Promise<session> {
-  const sessionId = encodeHexLowerCase(sha256(new TextEncoder().encode(token)))
-  const session = await prismaClient.session.create({
-    data: {
-      id: sessionId,
-      userId: username,
-      expiresAt: new Date(Date.now() + 1000 * 60 * 60 * 24 * 30)
-    }
-  })
-  return session
-}
-
-const EMPTY_SESSION = { session: null, user: null }
-
-export async function validateSessionToken(token?: string): Promise<SessionValidationResult> {
-  if (!token) return EMPTY_SESSION
-
-  const sessionId = encodeHexLowerCase(sha256(new TextEncoder().encode(token)))
-  const result = await prismaClient.session.findUnique({
-    where: {
-      id: sessionId
-    },
-    include: {
-      user: {
-        select: {
-          username: true,
-          createdAt: true,
-          placeholder: true,
-          imgId: true
-        }
-      }
-    }
-  })
-
-  if (result === null) return EMPTY_SESSION
-
-  const { user, ...session } = result
-  if (Date.now() >= session.expiresAt.getTime()) {
-    await prismaClient.session.delete({ where: { id: sessionId } })
-    return EMPTY_SESSION
-  }
-  if (Date.now() >= session.expiresAt.getTime() - 1000 * 60 * 60 * 24 * 15) {
-    session.expiresAt = new Date(Date.now() + 1000 * 60 * 60 * 24 * 30)
-    await prismaClient.session.update({
-      where: { id: session.id },
-      data: { expiresAt: session.expiresAt }
-    })
-  }
-  return { session, user }
-}
-
-export async function invalidateSession(sessionId: string): void {
-  await prismaClient.session.delete({ where: { id: sessionId } })
-}
-
-export type SessionValidationResult = { session: session; user: users } | { session: null; user: null }
-
-const COOKIE_OPTIONS = {
-  httpOnly: true,
-  sameSite: 'lax',
-  secure: import.meta.env.PROD,
-  path: '/'
-}
-
-export function setSessionTokenCookie(cookies: AstroCookies, token: string, expiresAt: Date) {
-  cookies.set(COOKIE_NAME, token, { ...COOKIE_OPTIONS, expires: expiresAt })
-}
-
-export function deleteSessionTokenCookie(cookies: AstroCookies) {
-  cookies.delete(COOKIE_NAME, { ...COOKIE_OPTIONS, maxAge: 0 })
-}