diff --git a/.eslintrc.cjs b/.eslintrc.cjs
new file mode 100644
index 0000000..8a0ab60
--- /dev/null
+++ b/.eslintrc.cjs
@@ -0,0 +1,17 @@
+module.exports = {
+  root: true,
+  env: { node: true, es2022: true },
+  parser: '@typescript-eslint/parser',
+  plugins: ['@typescript-eslint'],
+  extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended'],
+  rules: {
+    '@typescript-eslint/no-unused-vars': ['error', { argsIgnorePattern: '^_' }],
+    '@typescript-eslint/no-explicit-any': 'warn',
+  },
+  overrides: [
+    {
+      files: ['src/renderer/**/*.tsx', 'src/renderer/**/*.ts'],
+      env: { browser: true },
+    },
+  ],
+};
diff --git a/.prettierrc b/.prettierrc
new file mode 100644
index 0000000..07fedc5
--- /dev/null
+++ b/.prettierrc
@@ -0,0 +1,6 @@
+{
+  "semi": true,
+  "singleQuote": true,
+  "printWidth": 100,
+  "trailingComma": "es5"
+}
diff --git a/tsconfig.cli.json b/tsconfig.cli.json
new file mode 100644
index 0000000..91664d2
--- /dev/null
+++ b/tsconfig.cli.json
@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "module": "CommonJS",
+    "moduleResolution": "node",
+    "outDir": "out/cli",
+    "rootDir": "src",
+    "declaration": false,
+    "types": ["node"]
+  },
+  "include": ["src/core/**/*", "src/cli/**/*"]
+}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..abbd8b5
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,15 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "lib": ["ES2022"],
+    "module": "CommonJS",
+    "moduleResolution": "bundler",
+    "strict": true,
+    "esModuleInterop": true,
+    "skipLibCheck": true,
+    "resolveJsonModule": true,
+    "forceConsistentCasingInFileNames": true,
+    "baseUrl": "."
+  },
+  "exclude": ["node_modules", "out", "dist"]
+}
diff --git a/tsconfig.node.json b/tsconfig.node.json
new file mode 100644
index 0000000..ac10d8e
--- /dev/null
+++ b/tsconfig.node.json
@@ -0,0 +1,11 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "composite": true,
+    "lib": ["ES2022"],
+    "module": "CommonJS",
+    "moduleResolution": "bundler",
+    "types": ["node"]
+  },
+  "include": ["src/main/**/*", "src/preload/**/*", "src/core/**/*", "electron.vite.config.ts"]
+}
diff --git a/tsconfig.web.json b/tsconfig.web.json
new file mode 100644
index 0000000..7119430
--- /dev/null
+++ b/tsconfig.web.json
@@ -0,0 +1,12 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "composite": true,
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "jsx": "react-jsx",
+    "types": ["node"]
+  },
+  "include": ["src/renderer/**/*"]
+}
diff --git a/vitest.config.ts b/vitest.config.ts
new file mode 100644
index 0000000..6860f59
--- /dev/null
+++ b/vitest.config.ts
@@ -0,0 +1,9 @@
+import { defineConfig } from 'vitest/config';
+
+export default defineConfig({
+  test: {
+    environment: 'node',
+    include: ['src/**/__tests__/**/*.test.ts'],
+    globals: true,
+  },
+});