diff --git a/packages/eslint-config/base.cjs b/packages/eslint-config/base.cjs
new file mode 100644
index 0000000..6ff0a72
--- /dev/null
+++ b/packages/eslint-config/base.cjs
@@ -0,0 +1,16 @@
+/** @type {import('eslint').Linter.Config} */
+module.exports = {
+  env: {
+    browser: true,
+    es2022: true,
+    node: true
+  },
+  parserOptions: {
+    ecmaVersion: "latest",
+    sourceType: "module"
+  },
+  rules: {
+    "no-console": "warn",
+    "no-debugger": "error"
+  }
+};
diff --git a/packages/eslint-config/package.json b/packages/eslint-config/package.json
new file mode 100644
index 0000000..1d92afd
--- /dev/null
+++ b/packages/eslint-config/package.json
@@ -0,0 +1,11 @@
+{
+  "name": "@todolist/eslint-config",
+  "version": "0.1.0",
+  "description": "Shared ESLint config presets for TodoList",
+  "main": "base.cjs",
+  "license": "GPL-3.0-or-later",
+  "private": true,
+  "files": [
+    "base.cjs"
+  ]
+}
diff --git a/packages/tsconfig/base.json b/packages/tsconfig/base.json
new file mode 100644
index 0000000..d204bc0
--- /dev/null
+++ b/packages/tsconfig/base.json
@@ -0,0 +1,17 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "ESNext",
+    "moduleResolution": "Bundler",
+    "strict": true,
+    "noImplicitOverride": true,
+    "noUncheckedIndexedAccess": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "skipLibCheck": true,
+    "resolveJsonModule": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true
+  }
+}
diff --git a/packages/tsconfig/nest-app.json b/packages/tsconfig/nest-app.json
new file mode 100644
index 0000000..e6c45a9
--- /dev/null
+++ b/packages/tsconfig/nest-app.json
@@ -0,0 +1,13 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "./base.json",
+  "compilerOptions": {
+    "module": "CommonJS",
+    "moduleResolution": "Node",
+    "lib": ["ES2022"],
+    "types": ["node"],
+    "experimentalDecorators": true,
+    "emitDecoratorMetadata": true,
+    "sourceMap": true
+  }
+}
diff --git a/packages/tsconfig/package.json b/packages/tsconfig/package.json
new file mode 100644
index 0000000..d34f6cb
--- /dev/null
+++ b/packages/tsconfig/package.json
@@ -0,0 +1,12 @@
+{
+  "name": "@todolist/tsconfig",
+  "version": "0.1.0",
+  "description": "Shared TypeScript config presets for TodoList",
+  "license": "GPL-3.0-or-later",
+  "private": true,
+  "files": [
+    "base.json",
+    "react-app.json",
+    "nest-app.json"
+  ]
+}
diff --git a/packages/tsconfig/react-app.json b/packages/tsconfig/react-app.json
new file mode 100644
index 0000000..a785dfb
--- /dev/null
+++ b/packages/tsconfig/react-app.json
@@ -0,0 +1,9 @@
+{
+  "$schema": "https://json.schemastore.org/tsconfig",
+  "extends": "./base.json",
+  "compilerOptions": {
+    "lib": ["ES2022", "DOM", "DOM.Iterable"],
+    "jsx": "react-jsx",
+    "types": ["vite/client"]
+  }
+}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 91f5927..00cebb6 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -12,6 +12,10 @@ importers:
         specifier: ^2.9.3
         version: 2.9.3
 
+  packages/eslint-config: {}
+
+  packages/tsconfig: {}
+
 packages:
 
   '@turbo/darwin-64@2.9.3':