Switched to biome.

.eslintignore

@@ -1 +0,0 @@
-/src/generated/

.eslintrc.json

@@ -1,51 +0,0 @@
-{
-  "env": {
-    "browser": true,
-    "es2020": true,
-    "node": true,
-    "jquery": true,
-    "jest": true
-  },
-  "parser": "@typescript-eslint/parser",
-  "parserOptions": {
-    "ecmaFeatures": {
-      "jsx": true
-    },
-    "ecmaVersion": 11,
-    "sourceType": "module"
-  },
-  "extends": [
-    "plugin:@typescript-eslint/eslint-recommended",
-    "plugin:@typescript-eslint/recommended",
-    "eslint:recommended",
-    "plugin:prettier/recommended",
-    "plugin:import/errors",
-    "plugin:import/typescript",
-    "plugin:css-modules/recommended",
-    "plugin:cypress/recommended",
-    "prettier",
-    "next"
-  ],
-  "plugins": ["@typescript-eslint", "prettier", "promise", "css-modules", "cypress"],
-  "rules": {
-    "no-console": "error",
-    "react/display-name": "off",
-    "react-hooks/exhaustive-deps": "off",
-    "react/react-in-jsx-scope": "off",
-    "react/prop-types": "off",
-    "import/no-anonymous-default-export": "off",
-    "import/no-named-as-default": "off",
-    "css-modules/no-unused-class": "off",
-    "@next/next/no-img-element": "off",
-    "@typescript-eslint/no-empty-function": "off",
-    "@typescript-eslint/no-explicit-any": "off",
-    "@typescript-eslint/no-var-requires": "off",
-    "@typescript-eslint/no-empty-interface": "off",
-    "@typescript-eslint/no-unused-vars": ["error", { "ignoreRestSiblings": true }],
-    "@typescript-eslint/no-namespace": ["error", { "allowDeclarations": true }],
-    "@typescript-eslint/triple-slash-reference": "off"
-  },
-  "globals": {
-    "React": "writable"
-  }
-}

.prettierignore

@@ -1,2 +0,0 @@
-/public/script.js
-/src/generated/

.prettierrc.json

@@ -1,7 +0,0 @@
-{
-  "arrowParens": "avoid",
-  "endOfLine": "lf",
-  "printWidth": 100,
-  "singleQuote": true,
-  "trailingComma": "all"
-}

biome.json

@@ -0,0 +1,52 @@
+{
+  "$schema": "https://biomejs.dev/schemas/2.3.6/schema.json",
+  "vcs": {
+    "enabled": true,
+    "clientKind": "git",
+    "useIgnoreFile": true
+  },
+  "files": {
+    "includes": ["**", "!!**/dist"]
+  },
+  "formatter": {
+    "enabled": true,
+    "lineWidth": 100,
+    "indentStyle": "space",
+    "indentWidth": 2,
+    "lineEnding": "lf"
+  },
+  "linter": {
+    "enabled": true,
+    "rules": {
+      "recommended": true,
+      "a11y": "off",
+      "correctness": {
+        "useExhaustiveDependencies": "off"
+      },
+      "style": {
+        "noDescendingSpecificity": "off"
+      },
+      "suspicious": {
+        "noExplicitAny": "off"
+      },
+      "performance": {
+        "noImgElement": "off"
+      }
+    }
+  },
+  "javascript": {
+    "formatter": {
+      "quoteStyle": "single",
+      "trailingCommas": "all",
+      "arrowParentheses": "asNeeded"
+    }
+  },
+  "assist": {
+    "enabled": true,
+    "actions": {
+      "source": {
+        "organizeImports": "on"
+      }
+    }
+  }
+}

next.config.ts

@@ -1,5 +1,5 @@
 import 'dotenv/config';
-import pkg from './package.json' assert { type: 'json' };
+import pkg from './package.json' with { type: 'json' };
 
 const TRACKER_SCRIPT = '/script.js';
 

package.json

@@ -42,24 +42,18 @@
     "download-country-names": "node scripts/download-country-names.js",
     "download-language-names": "node scripts/download-language-names.js",
     "change-password": "node scripts/change-password.js",
-    "lint": "next lint --quiet",
     "prepare": "node -e \"if (process.env.NODE_ENV !== 'production'){process.exit(1)} \" || husky install",
     "postbuild": "node scripts/postbuild.js",
     "test": "jest",
     "cypress-open": "cypress open cypress run",
-    "cypress-run": "cypress run cypress run"
+    "cypress-run": "cypress run cypress run",
+    "lint": "biome lint .",
+    "format": "biome format --write .",
+    "check": "biome check --apply"
   },
   "lint-staged": {
-    "**/*.{js,jsx,ts,tsx}": [
+    "**/*.{js,jsx,ts,tsx,json,css}": [
-      "prettier --write",
+      "npm run format"
-      "eslint"
-    ],
-    "**/*.css": [
-      "stylelint --fix",
-      "prettier --write"
-    ],
-    "**/*.json": [
-      "prettier --write"
     ]
   },
   "cacheDirectories": [
@@ -78,7 +72,7 @@
     "@react-spring/web": "^10.0.3",
     "@svgr/cli": "^8.1.0",
     "@tanstack/react-query": "^5.90.5",
-    "@umami/react-zen": "^0.207.0",
+    "@umami/react-zen": "^0.208.0",
     "@umami/redis-client": "^0.29.0",
     "bcryptjs": "^3.0.2",
     "chalk": "^5.6.2",
@@ -132,6 +126,7 @@
     "zustand": "^5.0.8"
   },
   "devDependencies": {
+    "@biomejs/biome": "^2.3.6",
     "@formatjs/cli": "^4.2.29",
     "@netlify/plugin-nextjs": "^5.14.4",
     "@rollup/plugin-alias": "^5.0.0",
@@ -151,15 +146,6 @@
     "babel-plugin-react-compiler": "19.1.0-rc.2",
     "cross-env": "^10.1.0",
     "cypress": "^13.6.6",
-    "eslint": "^8.33.0",
-    "eslint-config-next": "^14.2.33",
-    "eslint-config-prettier": "^10.1.8",
-    "eslint-import-resolver-alias": "^1.1.2",
-    "eslint-plugin-css-modules": "^2.12.0",
-    "eslint-plugin-cypress": "^2.15.1",
-    "eslint-plugin-import": "^2.32.0",
-    "eslint-plugin-jest": "^27.9.0",
-    "eslint-plugin-prettier": "^5.5.3",
     "extract-react-intl-messages": "^4.1.1",
     "husky": "^9.1.7",
     "jest": "^29.7.0",
@@ -168,7 +154,6 @@
     "postcss-flexbugs-fixes": "^5.0.2",
     "postcss-import": "^15.1.0",
     "postcss-preset-env": "7.8.3",
-    "prettier": "^3.6.2",
     "prompts": "2.4.2",
     "rollup": "^4.52.5",
     "rollup-plugin-copy": "^3.4.0",

src/lib/clickhouse.ts

@@ -1,10 +1,10 @@
-import { ClickHouseClient, createClient } from '@clickhouse/client';
+import { type ClickHouseClient, createClient } from '@clickhouse/client';
 import { formatInTimeZone } from 'date-fns-tz';
 import debug from 'debug';
 import { CLICKHOUSE } from '@/lib/db';
 import { DEFAULT_PAGE_SIZE, FILTER_COLUMNS, OPERATORS } from './constants';
 import { filtersObjectToArray } from './params';
-import { QueryFilters, QueryOptions } from './types';
+import type { QueryFilters, QueryOptions } from './types';
 
 export const CLICKHOUSE_DATE_FORMATS = {
   utc: '%Y-%m-%dT%H:%i:%SZ',

src/lib/request.ts

@@ -1,12 +1,12 @@
+import { z } from 'zod';
 import { checkAuth } from '@/lib/auth';
 import { DEFAULT_PAGE_SIZE, FILTER_COLUMNS } from '@/lib/constants';
 import { getAllowedUnits, getMinimumUnit, maxDate, parseDateRange } from '@/lib/date';
 import { fetchWebsite } from '@/lib/load';
 import { filtersArrayToObject } from '@/lib/params';
 import { badRequest, unauthorized } from '@/lib/response';
-import { QueryFilters } from '@/lib/types';
+import type { QueryFilters } from '@/lib/types';
 import { getWebsiteSegment } from '@/queries/prisma';
-import { z } from 'zod';
 
 export async function parseRequest(
   request: Request,

src/lib/storage.ts

@@ -1,4 +1,4 @@
-export function setItem(key: string, data: any, session?: boolean): void {
+export function setItem(key: string, data: any, session?: boolean) {
   if (typeof window !== 'undefined' && data) {
     return (session ? sessionStorage : localStorage).setItem(key, JSON.stringify(data));
   }
@@ -18,7 +18,7 @@ export function getItem(key: string, session?: boolean): any {
   }
 }
 
-export function removeItem(key: string, session?: boolean): void {
+export function removeItem(key: string, session?: boolean) {
   if (typeof window !== 'undefined') {
     return (session ? sessionStorage : localStorage).removeItem(key);
   }