diff --git a/.eslintrc.json b/.eslintrc.json
index 1db5309..bac9605 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -10,9 +10,6 @@
     "ecmaVersion": "latest",
     "sourceType": "module"
   },
-  "plugins": ["@typescript-eslint", "solid", "prettier"],
-  "rules": {
-    "prettier/prettier": "error"
-  },
+  "plugins": ["@typescript-eslint", "solid"],
   "ignorePatterns": ["node_modules/", "dist/"]
 }
diff --git a/.gitignore b/.gitignore
index d20c03d..6f9e690 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,30 +1,9 @@
-
-dist
 .solid
 .output
-.vercel
-.netlify
-netlify
-
-# Environment
-.env
-.env*.local
-
-# dependencies
-/node_modules
-
-# IDEs and editors
-/.idea
-.project
-.classpath
-*.launch
-.settings/
-
-# Temp
-gitignore
+.vinxi
+node_modules
+.idea
 
-# System Files
 .DS_Store
 Thumbs.db
 
-.vinxi
diff --git a/.prettierignore b/.prettierignore
deleted file mode 100644
index dee70d2..0000000
--- a/.prettierignore
+++ /dev/null
@@ -1,2 +0,0 @@
-dist
-pnpm-lock.yaml
diff --git a/.prettierrc.json b/.prettierrc.json
deleted file mode 100644
index 5d7fb7a..0000000
--- a/.prettierrc.json
+++ /dev/null
@@ -1,19 +0,0 @@
-{
-  "printWidth": 120,
-  "tabWidth": 2,
-  "useTabs": false,
-  "semi": false,
-  "singleQuote": true,
-  "quoteProps": "as-needed",
-  "jsxSingleQuote": false,
-  "trailingComma": "es5",
-  "bracketSpacing": true,
-  "bracketSameLine": false,
-  "arrowParens": "always",
-  "requirePragma": false,
-  "insertPragma": false,
-  "proseWrap": "always",
-  "htmlWhitespaceSensitivity": "strict",
-  "endOfLine": "lf",
-  "embeddedLanguageFormatting": "off"
-}
diff --git a/biome.json b/biome.json
new file mode 100644
index 0000000..e4ed59b
--- /dev/null
+++ b/biome.json
@@ -0,0 +1,32 @@
+{
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "formatter": {
+    "enabled": true,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineWidth": 120,
+    "lineEnding": "lf"
+  },
+  "linter": {
+    "enabled": false
+  },
+  "organizeImports": {
+    "enabled": true
+  },
+  "javascript": {
+    "formatter": {
+      "trailingComma": "es5",
+      "arrowParentheses": "always",
+      "quoteStyle": "single",
+      "jsxQuoteStyle": "double",
+      "bracketSpacing": true,
+      "bracketSameLine": false,
+      "semicolons": "asNeeded",
+      "quoteProperties": "asNeeded"
+    }
+  }
+}
diff --git a/package.json b/package.json
index 3f0702a..465ded2 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
     "dev": "vinxi dev",
     "build": "vinxi build",
     "start": "node ./.output/server/index.mjs",
-    "format": "prettier . --write",
+    "format": "pnpm dlx @biomejs/biome format --write .",
     "lint": "eslint --ext .tsx,.ts,.json,.js,.jsx ."
   },
   "type": "module",
@@ -16,10 +16,8 @@
     "@typescript-eslint/parser": "^6.15.0",
     "esbuild": "^0.14.54",
     "eslint": "^8.56.0",
-    "eslint-plugin-prettier": "^5.0.1",
     "eslint-plugin-solid": "^0.13.0",
     "postcss": "^8.4.32",
-    "prettier": "3.0.3",
     "sass": "^1.69.5",
     "typescript": "^4.9.5",
     "vite": "^4.5.1"
diff --git a/src/app.tsx b/src/app.tsx
index 5049098..8988de4 100644
--- a/src/app.tsx
+++ b/src/app.tsx
@@ -1,17 +1,17 @@
 // @refresh reload
 
-import { ErrorBoundary, lazy, Suspense } from 'solid-js'
+import { Meta, MetaProvider } from '@solidjs/meta'
+import { RouteDefinition, Router } from '@solidjs/router'
 import 'normalize.css'
+import { ErrorBoundary, Suspense, lazy } from 'solid-js'
 import previewImage from '~/assets/preview_image.png'
-import '~/scss/global.scss'
 import Layout from '~/components/Layout'
 import Title from '~/components/Title'
-import { RouteDefinition, Router } from '@solidjs/router'
-import { Meta, MetaProvider } from '@solidjs/meta'
+import '~/scss/global.scss'
 import { loadHomePage } from './data/home.data'
+import { loadPagesPage } from './data/pages.data'
 import { loadPost } from './data/post.data'
 import { loadSearchPage } from './data/search.data'
-import { loadPagesPage } from './data/pages.data'
 
 const ROUTES: RouteDefinition[] = [
   {
@@ -37,7 +37,11 @@ const ROUTES: RouteDefinition[] = [
       },
       {
         path: '/:type/:value',
-        component: lazy(() => import('~/pages/Search').then((c) => ({ default: c.SearchPageRedirect }))),
+        component: lazy(() =>
+          import('~/pages/Search').then((c) => ({
+            default: c.SearchPageRedirect,
+          }))
+        ),
         load: loadSearchPage,
       },
     ],
diff --git a/src/components/Banners.tsx b/src/components/Banners.tsx
index a46e13f..89ea28c 100644
--- a/src/components/Banners.tsx
+++ b/src/components/Banners.tsx
@@ -1,9 +1,9 @@
+import { A } from '@solidjs/router'
 import { VoidComponent } from 'solid-js'
+import bazis from '~/assets/banners/bazisintezmeny_logo.png'
 import hatartalanul from '~/assets/banners/hatartalanul.jpg'
 import ntp from '~/assets/banners/ntp.png'
-import bazis from '~/assets/banners/bazisintezmeny_logo.png'
 import styles from './Banners.module.scss'
-import { A } from '@solidjs/router'
 
 const Banners: VoidComponent = () => {
   return (
diff --git a/src/components/CardGrid.tsx b/src/components/CardGrid.tsx
index da48520..9794863 100644
--- a/src/components/CardGrid.tsx
+++ b/src/components/CardGrid.tsx
@@ -1,7 +1,7 @@
 import { For, VoidComponent } from 'solid-js'
 import { Post } from '~/models/post'
-import PostCard from './PostCard'
 import styles from './CardGrid.module.scss'
+import PostCard from './PostCard'
 
 export type CardGridProps = {
   posts: Post[] | undefined
diff --git a/src/components/Footer.tsx b/src/components/Footer.tsx
index 6598a22..f8a0c77 100644
--- a/src/components/Footer.tsx
+++ b/src/components/Footer.tsx
@@ -1,12 +1,12 @@
+import { A } from '@solidjs/router'
+import { FaBrandsFacebookF, FaBrandsGithub } from 'solid-icons/fa'
 import { VoidComponent } from 'solid-js'
+import eugy from '~/assets/icons/eugy.png'
+import kk from '~/assets/icons/kk-logo.webp'
+import kreta from '~/assets/icons/kreta.png'
 import { VERSION } from '~/constants'
 import styles from './Footer.module.scss'
-import { FaBrandsFacebookF, FaBrandsGithub } from 'solid-icons/fa'
 import Logo from './Logo'
-import kk from '~/assets/icons/kk-logo.webp'
-import kreta from '~/assets/icons/kreta.png'
-import eugy from '~/assets/icons/eugy.png'
-import { A } from '@solidjs/router'
 
 const Footer: VoidComponent = () => {
   return (
diff --git a/src/components/Header.tsx b/src/components/Header.tsx
index 12d98bf..a7965e9 100644
--- a/src/components/Header.tsx
+++ b/src/components/Header.tsx
@@ -1,9 +1,9 @@
 import { A, useLocation, useNavigate } from '@solidjs/router'
 import { FaSolidBars, FaSolidChevronDown, FaSolidMagnifyingGlass, FaSolidXmark } from 'solid-icons/fa'
-import { createContext, createMemo, createSignal, ParentComponent, Setter, useContext, VoidComponent } from 'solid-js'
+import { ParentComponent, Setter, VoidComponent, createContext, createMemo, createSignal, useContext } from 'solid-js'
+import kretalogo from '~/assets/icons/kreta.png'
 import styles from './Header.module.scss'
 import Logo from './Logo'
-import kretalogo from '~/assets/icons/kreta.png'
 
 const DropdownContext = createContext<Setter<string[]>>()
 
diff --git a/src/components/ImageViewer.tsx b/src/components/ImageViewer.tsx
index bc1c2e9..29ca206 100644
--- a/src/components/ImageViewer.tsx
+++ b/src/components/ImageViewer.tsx
@@ -1,5 +1,5 @@
 import { FaSolidChevronLeft } from 'solid-icons/fa'
-import { createEffect, on, createSignal, For, onMount, VoidComponent, untrack } from 'solid-js'
+import { For, VoidComponent, createEffect, createSignal, on, onMount, untrack } from 'solid-js'
 import styles from './ImageViewer.module.scss'
 
 export type ImageViewerProps = {
diff --git a/src/components/Logo.tsx b/src/components/Logo.tsx
index 3ddf10d..8e4d280 100644
--- a/src/components/Logo.tsx
+++ b/src/components/Logo.tsx
@@ -1,7 +1,7 @@
 import { A } from '@solidjs/router'
 import { VoidComponent } from 'solid-js'
-import styles from './Logo.module.scss'
 import logo from '~/assets/icons/logo.svg'
+import styles from './Logo.module.scss'
 
 const Logo: VoidComponent = () => {
   return (
diff --git a/src/components/Title.tsx b/src/components/Title.tsx
index c5302ac..e274793 100644
--- a/src/components/Title.tsx
+++ b/src/components/Title.tsx
@@ -1,5 +1,5 @@
-import { VoidComponent } from 'solid-js'
 import { Meta, Title as TitleMeta } from '@solidjs/meta'
+import { VoidComponent } from 'solid-js'
 
 const BASE_TITLE = 'Verseghy Ferenc Gimnázium'
 
diff --git a/src/data/home.data.ts b/src/data/home.data.ts
index 3e3aa7d..6546706 100644
--- a/src/data/home.data.ts
+++ b/src/data/home.data.ts
@@ -1,5 +1,5 @@
 import { gql, request } from '@solid-primitives/graphql'
-import { cache, RouteLoadFunc } from '@solidjs/router'
+import { RouteLoadFunc, cache } from '@solidjs/router'
 import { GRAPHQL_BACKEND_URL } from '~/constants'
 import { Connection, PageInfo } from '~/models/connection'
 import { Post } from '~/models/post'
diff --git a/src/data/pages.data.ts b/src/data/pages.data.ts
index 5da9fb7..01a100c 100644
--- a/src/data/pages.data.ts
+++ b/src/data/pages.data.ts
@@ -1,5 +1,5 @@
 import { gql, request } from '@solid-primitives/graphql'
-import { cache, redirect, RouteLoadFunc } from '@solidjs/router'
+import { RouteLoadFunc, cache, redirect } from '@solidjs/router'
 import { GRAPHQL_BACKEND_URL } from '~/constants'
 import { Page } from '~/models/page'
 
diff --git a/src/data/post.data.ts b/src/data/post.data.ts
index 7ea4fe1..83e49af 100644
--- a/src/data/post.data.ts
+++ b/src/data/post.data.ts
@@ -1,5 +1,5 @@
 import { gql, request } from '@solid-primitives/graphql'
-import { cache, redirect, RouteLoadFunc } from '@solidjs/router'
+import { RouteLoadFunc, cache, redirect } from '@solidjs/router'
 import { GRAPHQL_BACKEND_URL } from '~/constants'
 import { Post } from '~/models/post'
 
diff --git a/src/data/search.data.ts b/src/data/search.data.ts
index c3b4d5a..0dc454d 100644
--- a/src/data/search.data.ts
+++ b/src/data/search.data.ts
@@ -1,5 +1,5 @@
 import { gql, request } from '@solid-primitives/graphql'
-import { cache, Params, RouteLoadFunc } from '@solidjs/router'
+import { Params, RouteLoadFunc, cache } from '@solidjs/router'
 import { GRAPHQL_BACKEND_URL } from '~/constants'
 import { Connection, PageInfo } from '~/models/connection'
 import { Post } from '~/models/post'
diff --git a/src/entry-client.tsx b/src/entry-client.tsx
index 15a4df4..d347d44 100644
--- a/src/entry-client.tsx
+++ b/src/entry-client.tsx
@@ -1,3 +1,3 @@
-import { mount, StartClient } from '@solidjs/start/client'
+import { StartClient, mount } from '@solidjs/start/client'
 
 mount(() => <StartClient />, document.getElementById('app'))
diff --git a/src/entry-server.tsx b/src/entry-server.tsx
index 9158572..548da44 100644
--- a/src/entry-server.tsx
+++ b/src/entry-server.tsx
@@ -1,4 +1,4 @@
-import { createHandler, StartServer } from '@solidjs/start/server'
+import { StartServer, createHandler } from '@solidjs/start/server'
 import favicon from '~/assets/favicon.ico'
 
 export default createHandler(() => (
diff --git a/src/pages/Home.tsx b/src/pages/Home.tsx
index 085626f..f2ac396 100644
--- a/src/pages/Home.tsx
+++ b/src/pages/Home.tsx
@@ -1,10 +1,10 @@
+import { Meta } from '@solidjs/meta'
+import { RouteSectionProps, createAsync } from '@solidjs/router'
 import { Component } from 'solid-js'
 import Banners from '~/components/Banners'
 import CardGrid from '~/components/CardGrid'
-import styles from './Home.module.scss'
-import { Meta } from '@solidjs/meta'
-import { createAsync, RouteSectionProps } from '@solidjs/router'
 import { queryHomePage } from '~/data/home.data'
+import styles from './Home.module.scss'
 
 const HomePage: Component<RouteSectionProps> = () => {
   const data = createAsync(() => queryHomePage())
diff --git a/src/pages/Pages.tsx b/src/pages/Pages.tsx
index 9416b7d..c96a110 100644
--- a/src/pages/Pages.tsx
+++ b/src/pages/Pages.tsx
@@ -1,5 +1,5 @@
 import { Meta } from '@solidjs/meta'
-import { createAsync, RouteSectionProps } from '@solidjs/router'
+import { RouteSectionProps, createAsync } from '@solidjs/router'
 import { Component, Show } from 'solid-js'
 import PageRenderer from '~/components/PageRenderer'
 import Title from '~/components/Title'
diff --git a/src/pages/Post.tsx b/src/pages/Post.tsx
index 30e4121..6244444 100644
--- a/src/pages/Post.tsx
+++ b/src/pages/Post.tsx
@@ -1,14 +1,14 @@
+import { Meta } from '@solidjs/meta'
+import { RouteSectionProps, createAsync } from '@solidjs/router'
+import { formatISO } from 'date-fns'
 import { Component, For, Show } from 'solid-js'
-import styles from './Post.module.scss'
-import Title from '~/components/Title'
-import Label from '~/components/Label'
-import PageRenderer from '~/components/PageRenderer'
 import FormattedDate from '~/components/FormattedDate'
 import ImageViewer from '~/components/ImageViewer'
-import { createAsync, RouteSectionProps } from '@solidjs/router'
-import { Meta } from '@solidjs/meta'
+import Label from '~/components/Label'
+import PageRenderer from '~/components/PageRenderer'
+import Title from '~/components/Title'
 import { queryPostById } from '~/data/post.data'
-import { formatISO } from 'date-fns'
+import styles from './Post.module.scss'
 
 // eslint-disable-next-line solid/no-destructure
 const PostPage: Component<RouteSectionProps> = ({ params }) => {
diff --git a/src/pages/Search.tsx b/src/pages/Search.tsx
index e7f2409..1a38fda 100644
--- a/src/pages/Search.tsx
+++ b/src/pages/Search.tsx
@@ -1,4 +1,4 @@
-import { createAsync, Navigate, RouteSectionProps } from '@solidjs/router'
+import { Navigate, RouteSectionProps, createAsync } from '@solidjs/router'
 import { Component, Show } from 'solid-js'
 import CardGrid from '~/components/CardGrid'
 import Title from '~/components/Title'