diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..7bc9fbb
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,14 @@
+node_modules/
+.next/
+out/
+build/
+dist/
+public/
+coverage/
+*.min.js
+next-env.d.ts
+.vercel/
+.design-handoff/
+bun.lock
+package-lock.json
+messages/
\ No newline at end of file
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cf706b8..5a76020 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -25,7 +25,7 @@ jobs:
         run: bun install
 
       - name: Cache Next.js build cache
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: .next/cache
           key: ${{ runner.os }}-nextjs-${{ hashFiles('bun.lock') }}
diff --git a/.prettierrc b/.prettierrc
index 0965e7e..c57e8e1 100644
--- a/.prettierrc
+++ b/.prettierrc
@@ -1,6 +1,11 @@
 {
-  "semi": false,
-  "singleQuote": true,
+  "semi": true,
   "trailingComma": "all",
-  "printWidth": 100
+  "singleQuote": true,
+  "printWidth": 100,
+  "tabWidth": 2,
+  "useTabs": false,
+  "bracketSpacing": true,
+  "arrowParens": "always",
+  "endOfLine": "lf"
 }
diff --git a/.vscode/extensions.json b/.vscode/extensions.json
new file mode 100644
index 0000000..ad84f89
--- /dev/null
+++ b/.vscode/extensions.json
@@ -0,0 +1,7 @@
+{
+  "recommendations": [
+    "dbaeumer.vscode-eslint",
+    "esbenp.prettier-vscode",
+    "bradlc.vscode-tailwindcss"
+  ]
+}
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 0967ef4..23f8059 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1 +1,14 @@
-{}
+{
+  "editor.codeActionsOnSave": {
+    "source.fixAll.eslint": "explicit"
+  },
+  "editor.formatOnSave": true,
+  "editor.defaultFormatter": "esbenp.prettier-vscode",
+  "eslint.validate": [
+    "javascript",
+    "javascriptreact",
+    "typescript",
+    "typescriptreact"
+  ],
+  "typescript.tsdk": "node_modules/typescript/lib"
+}
diff --git a/eslint.config.js b/eslint.config.js
new file mode 100644
index 0000000..cae3269
--- /dev/null
+++ b/eslint.config.js
@@ -0,0 +1,38 @@
+import coreWebVitals from 'eslint-config-next/core-web-vitals'
+import nextTypescript from 'eslint-config-next/typescript'
+
+const eslintConfig = [
+  ...coreWebVitals,
+  ...nextTypescript,
+  {
+    rules: {
+      'eqeqeq': ['error', 'always', { null: 'ignore' }],
+      'curly': ['warn', 'all'],
+      'prefer-const': 'warn',
+      'no-var': 'error',
+      'no-console': ['warn', { allow: ['warn', 'error'] }],
+      'no-debugger': 'error',
+      'no-duplicate-imports': 'warn',
+      'no-unused-expressions': 'warn',
+      'no-throw-literal': 'warn',
+      'no-return-await': 'warn',
+      'require-await': 'warn',
+      '@typescript-eslint/no-unused-vars': [
+        'warn',
+        { argsIgnorePattern: '^_', varsIgnorePattern: '^_', caughtErrorsIgnorePattern: '^_' }
+      ],
+      '@typescript-eslint/no-explicit-any': 'warn',
+      '@typescript-eslint/consistent-type-imports': [
+        'warn',
+        { prefer: 'type-imports', fixStyle: 'inline-type-imports' }
+      ],
+      '@typescript-eslint/no-non-null-assertion': 'warn',
+      '@typescript-eslint/array-type': ['warn', { default: 'array-simple' }],
+      '@typescript-eslint/prefer-optional-chain': 'warn',
+      'react-hooks/rules-of-hooks': 'error',
+      'react-hooks/exhaustive-deps': 'warn',
+    }
+  }
+]
+
+export default eslintConfig
diff --git a/eslint.config.mjs b/eslint.config.mjs
deleted file mode 100644
index d358a53..0000000
--- a/eslint.config.mjs
+++ /dev/null
@@ -1,6 +0,0 @@
-import coreWebVitals from 'eslint-config-next/core-web-vitals'
-import nextTypescript from 'eslint-config-next/typescript'
-
-const eslintConfig = [{ ignores: ['.design-handoff/**'] }, ...coreWebVitals, ...nextTypescript]
-
-export default eslintConfig
diff --git a/package.json b/package.json
index a6e700b..9467e6c 100644
--- a/package.json
+++ b/package.json
@@ -19,6 +19,7 @@
     "start": "next start",
     "typecheck": "tsc --noEmit",
     "lint": "eslint .",
+    "lint:fix": "eslint . --fix",
     "format": "prettier --write .",
     "format:check": "prettier --check .",
     "test": "vitest run",
@@ -29,6 +30,7 @@
   },
   "lint-staged": {
     "*.{ts,tsx}": [
+      "eslint --fix",
       "bash -c \"tsc --noEmit\""
     ]
   },
@@ -57,6 +59,9 @@
     "@vitest/ui": "^4.1.9",
     "eslint": "^9.39.4",
     "eslint-config-next": "^16.2.9",
+    "eslint-import-resolver-typescript": "^3.10.0",
+    "eslint-plugin-import": "^2.32.0",
+    "eslint-plugin-jsx-a11y": "^6.10.2",
     "husky": "^9.1.7",
     "jsdom": "^24.0.0",
     "lint-staged": "^15.5.2",