diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..bb136c1
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,43 @@
+{
+  "env": {
+    "browser": true,
+    "es2021": true
+  },
+  "extends": [
+    "eslint:recommended",
+    "plugin:react/recommended",
+    "plugin:react-hooks/recommended",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended"
+  ],
+  "parser": "@typescript-eslint/parser",
+  "settings": {
+    "react": {
+      "version": "detect"
+    }
+  },
+  "overrides": [],
+  "parserOptions": {
+    "ecmaVersion": "latest",
+    "sourceType": "module",
+    "ecmaFeatures": {
+      "jsx": true
+    }
+  },
+  "plugins": ["react", "@typescript-eslint", "react-hooks", "prettier"],
+  "rules": {
+    "@typescript-eslint/semi": ["error", "always"],
+    "@typescript-eslint/space-before-function-paren": 0,
+    "prefer-arrow-callback": "error",
+    "react/function-component-definition": [
+      "error",
+      {
+        "namedComponents": "arrow-function",
+        "unnamedComponents": "arrow-function"
+      }
+    ],
+    "react/prop-types": "off"
+  },
+  "ignorePatterns": ["*/*.config.js", "*.config.js"],
+  "root": true
+}
diff --git a/index.ts b/index.ts
index 118d0b5..e834edd 100644
--- a/index.ts
+++ b/index.ts
@@ -1,3 +1,3 @@
-import tokens from "./Tokens";
+import tokens from "./src";
 
 export default tokens;
diff --git a/package-lock.json b/package-lock.json
index 51d0a9d..8c864e5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@zerogachis/smartway-design-token",
-  "version": "0.0.0",
+  "version": "0.0.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@zerogachis/smartway-design-token",
-      "version": "0.0.0",
+      "version": "0.0.1",
       "license": "ISC",
       "devDependencies": {
         "typescript": "^5.3.3"
diff --git a/package.json b/package.json
index e1e5b29..061e908 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,8 @@
   "description": "Smartway design tokens",
   "main": "tokens.json",
   "scripts": {
-    "test": "echo \"Test\" && exit 1"
+    "type:check": "tsc",
+    "tsc": "tsc --project tsconfig.build.json"
   },
   "repository": {
     "type": "git",
diff --git a/Tokens.ts b/src/Tokens.ts
similarity index 78%
rename from Tokens.ts
rename to src/Tokens.ts
index e951293..b06967d 100644
--- a/Tokens.ts
+++ b/src/Tokens.ts
@@ -1,4 +1,4 @@
-import * as tokensJson from "./tokens.json";
+import * as tokensJson from "../tokens.json";
 import {
   BoxShadows,
   BoxShadow,
@@ -14,7 +14,7 @@ import {
   Color,
 } from "./TokensType";
 
-const parseShadow = (value: any): BoxShadow | undefined => {
+const parseShadow = (value: any): BoxShadow | void => {
   if (typeof value !== "string")
     return {
       color: value.color,
@@ -28,8 +28,11 @@ const parseShadow = (value: any): BoxShadow | undefined => {
 
 const parseAliasShadow =
   (shadow: BoxShadows) =>
-  (value: any): BoxShadow | undefined => {
-    if (typeof value === "string") return shadow[value.replace(/\D/g, "")];
+  (value: any): BoxShadow | void => {
+    if (typeof value === "string") {
+      const key = value.replace(/\D/g, "");
+      return shadow[key as keyof BoxShadows];
+    }
   };
 
 const parseTypography =
@@ -38,12 +41,24 @@ const parseTypography =
     return {
       fontWeight:
         font.fontWeight[
-          value["fontWeight"].replace("}", "").split(".").slice(-1)
+          value["fontWeight"]
+            .replace("}", "")
+            .split(".")
+            .slice(-1)[0] as keyof FontWeight
         ],
       fontSize:
-        font.fontSize[value["fontSize"].replace("}", "").split(".").slice(-1)],
+        font.fontSize[
+          value["fontSize"]
+            .replace("}", "")
+            .split(".")
+            .slice(-1)[0] as keyof FontSize
+        ],
       fontFamily:
-        font.fontFamily[value["fontFamily"].replace("{", "").replace("}", "")],
+        font.fontFamily[
+          value["fontFamily"]
+            .replace("{", "")
+            .replace("}", "") as keyof FontFamily
+        ],
     };
   };
 
@@ -58,14 +73,14 @@ const getValueToken = <T, R>(
   Object.keys(value).forEach((key) => {
     const parsedValue = parseMethod(value[key].value);
     if (parsedValue) {
-      values[key] = parseMethod(value[key].value);
+      (values as Record<string, R>)[key] = parsedValue;
     }
   });
   return values as T;
 };
 
 const getTokens = () => {
-  const shadows = getValueToken<BoxShadows, BoxShadow | undefined>(
+  const shadows = getValueToken<BoxShadows, BoxShadow | void>(
     tokensJson.global.shadow,
     parseShadow
   );
@@ -90,7 +105,7 @@ const getTokens = () => {
     ),
     boxShadow: {
       ...shadows,
-      ...getValueToken<BoxShadows, BoxShadow | undefined>(
+      ...getValueToken<BoxShadows, BoxShadow | void>(
         tokensJson.global.shadow,
         parseAliasShadow(shadows)
       ),
diff --git a/TokensType.ts b/src/TokensType.ts
similarity index 100%
rename from TokensType.ts
rename to src/TokensType.ts
diff --git a/src/index.ts b/src/index.ts
new file mode 100644
index 0000000..118d0b5
--- /dev/null
+++ b/src/index.ts
@@ -0,0 +1,3 @@
+import tokens from "./Tokens";
+
+export default tokens;
diff --git a/tsconfig.build.json b/tsconfig.build.json
new file mode 100644
index 0000000..5b4b760
--- /dev/null
+++ b/tsconfig.build.json
@@ -0,0 +1,5 @@
+{
+    "extends": "./tsconfig",
+    "include": ["src"],
+    "exclude": ["**/*.test.tsx", "**/*.test.ts"]
+}
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..f0d8d22
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,27 @@
+{
+  "compilerOptions": {
+    "baseUrl": "./",
+    "allowUnreachableCode": false,
+    "allowUnusedLabels": false,
+    "declaration": true,
+    "esModuleInterop": true,
+    "forceConsistentCasingInFileNames": true,
+    "jsx": "react",
+    "lib": ["esnext"],
+    "module": "esnext",
+    "moduleResolution": "node",
+    "noFallthroughCasesInSwitch": true,
+    "noImplicitReturns": true,
+    "noImplicitUseStrict": false,
+    "noStrictGenericChecks": false,
+    "noUncheckedIndexedAccess": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "outDir": "lib",
+    "resolveJsonModule": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "target": "esnext"
+  },
+  "include": ["src", "./.eslintrc.json"],
+}