diff --git a/.npmignore b/.npmignore
index 5a50141..0fd6622 100644
--- a/.npmignore
+++ b/.npmignore
@@ -1,6 +1,4 @@
-src
-tests
-.gitignore
-.npmignore
-tsconfig.json
-rollup.config.js
\ No newline at end of file
+# Exclude unnecessary files
+src/
+node_modules/
+test/
diff --git a/package-lock.json b/package-lock.json
index 04955cf..dd96b98 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "zust",
-  "version": "0.2.0",
+  "version": "0.2.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "zust",
-      "version": "0.2.0",
+      "version": "0.2.1",
       "license": "MIT",
       "dependencies": {
         "zustand": "^4.5.5"
@@ -14,6 +14,7 @@
       "devDependencies": {
         "@jest/globals": "^29.7.0",
         "@rollup/plugin-commonjs": "^28.0.0",
+        "@rollup/plugin-json": "^6.1.0",
         "@rollup/plugin-node-resolve": "^15.3.0",
         "@testing-library/jest-dom": "^6.5.0",
         "@testing-library/react": "16.0.1",
@@ -1111,6 +1112,27 @@
         "url": "https://github.com/sponsors/jonschlinkert"
       }
     },
+    "node_modules/@rollup/plugin-json": {
+      "version": "6.1.0",
+      "resolved": "https://registry.npmjs.org/@rollup/plugin-json/-/plugin-json-6.1.0.tgz",
+      "integrity": "sha512-EGI2te5ENk1coGeADSIwZ7G2Q8CJS2sF120T7jLw4xFw9n7wIOXHo+kIYRAoVpJAN+kmqZSoO3Fp4JtoNF4ReA==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@rollup/pluginutils": "^5.1.0"
+      },
+      "engines": {
+        "node": ">=14.0.0"
+      },
+      "peerDependencies": {
+        "rollup": "^1.20.0||^2.0.0||^3.0.0||^4.0.0"
+      },
+      "peerDependenciesMeta": {
+        "rollup": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@rollup/plugin-node-resolve": {
       "version": "15.3.0",
       "resolved": "https://registry.npmjs.org/@rollup/plugin-node-resolve/-/plugin-node-resolve-15.3.0.tgz",
diff --git a/package.json b/package.json
index e0d289d..c4a4018 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "zust",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "A powerful state manager based on Zustand",
   "type": "module",
   "main": "dist/index.cjs.js",
@@ -12,7 +12,6 @@
     "LICENSE"
   ],
   "scripts": {
-    "dev": "rollup -c -w",
     "build": "rollup -c",
     "test": "jest",
     "prepublishOnly": "npm run build"
@@ -30,6 +29,7 @@
   "devDependencies": {
     "@jest/globals": "^29.7.0",
     "@rollup/plugin-commonjs": "^28.0.0",
+    "@rollup/plugin-json": "^6.1.0",
     "@rollup/plugin-node-resolve": "^15.3.0",
     "@testing-library/jest-dom": "^6.5.0",
     "@testing-library/react": "16.0.1",
diff --git a/rollup.config.js b/rollup.config.js
index 488aa16..c0ed63d 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -1,7 +1,9 @@
+// rollup.config.js
 import peerDepsExternal from "rollup-plugin-peer-deps-external";
 import resolve from "@rollup/plugin-node-resolve";
 import commonjs from "@rollup/plugin-commonjs";
 import typescript from "rollup-plugin-typescript2";
+import json from "@rollup/plugin-json"; // Import the plugin
 
 export default {
   input: "src/index.ts",
@@ -20,11 +22,9 @@ export default {
   external: ["react", "react-dom", "zustand"],
   plugins: [
     peerDepsExternal(),
-    typescript({
-      tsconfig: "tsconfig.build.json",
-      useTsconfigDeclarationDir: true,
-    }),
     resolve(),
     commonjs(),
+    typescript({ useTsconfigDeclarationDir: true }),
+    json(), // Add the plugin to the plugins array
   ],
 };
diff --git a/tests/integration.test.tsx b/tests/integration.test.tsx
index 7bdf485..a146e7d 100644
--- a/tests/integration.test.tsx
+++ b/tests/integration.test.tsx
@@ -1,7 +1,6 @@
 // test/integration.test.ts
 import { render, act } from "@testing-library/react";
 import "@testing-library/jest-dom";
-
 import { createStore } from "../src/index";
 
 describe("Zust Integration", () => {
@@ -31,7 +30,6 @@ describe("Zust Integration", () => {
 
   test("state updates trigger re-renders", () => {
     const { useSelectors, setDeep } = createStore({ counter: 0 });
-
     let renderCount = 0;
     function TestComponent() {
       const { counter } = useSelectors("counter");
diff --git a/tsconfig.json b/tsconfig.json
index c80320f..cf4fdd9 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -4,23 +4,24 @@
     "module": "ESNext",
     "lib": ["ES2020", "DOM"],
     "moduleResolution": "node",
-    "rootDir": ".",
+    "rootDir": "src",
+    "declaration": true,
+    "declarationDir": "dist/types",
+    "emitDeclarationOnly": false,
     "strict": true,
     "esModuleInterop": true,
     "skipLibCheck": true,
     "forceConsistentCasingInFileNames": true,
+    "sourceMap": true,
     "jsx": "react-jsx",
+    "resolveJsonModule": true,
+    "allowSyntheticDefaultImports": true,
+    "noImplicitAny": true,
     "noUnusedLocals": true,
     "noUnusedParameters": true,
     "noImplicitReturns": true,
-    "noFallthroughCasesInSwitch": true,
-    "allowSyntheticDefaultImports": true,
-    "resolveJsonModule": true,
-    "types": ["jest", "node"],
-    "declaration": true,
-    "declarationMap": true,
-    "emitDeclarationOnly": false,
+    "noFallthroughCasesInSwitch": true
   },
-  "include": ["src/**/*", "tests/**/*"],
-  "exclude": ["node_modules", "dist"]
+  "include": ["src/**/*"],
+  "exclude": ["node_modules", "dist", "**/*.test.ts", "**/*.test.tsx"]
 }