diff --git a/.eslintignore b/.eslintignore
new file mode 100644
index 0000000..10b4c73
--- /dev/null
+++ b/.eslintignore
@@ -0,0 +1,5 @@
+lib
+tsconfig.json
+package.json
+.eslintrc.json
+rollup.config.ts
\ No newline at end of file
diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..10c0b36
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,121 @@
+{
+  "env": {
+    "es6": true,
+    "node": true
+  },
+  "extends": [
+    "airbnb-typescript/base",
+    "plugin:@typescript-eslint/eslint-recommended",
+    "plugin:@typescript-eslint/recommended",
+    "plugin:json/recommended"
+  ],
+  "globals": {
+    "Atomics": "readonly",
+    "SharedArrayBuffer": "readonly"
+  },
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+    "project": "./tsconfig.json",
+    "ecmaVersion": 2020,
+    "sourceType": "module"
+  },
+  "plugins": [
+    "@typescript-eslint",
+    "import"
+  ],
+  "rules": {
+    "@typescript-eslint/no-shadow": 0,
+    "guard-for-in": 0,
+    "multiline-ternary": [
+      "error",
+      "always"
+    ],
+    "@typescript-eslint/indent": [
+      "error",
+      "tab",
+      {
+        "SwitchCase": 1
+      }
+    ],
+    "linebreak-style": [
+      "error",
+      "unix"
+    ],
+    "@typescript-eslint/quotes": [
+      "error",
+      "double",
+      {
+        "allowTemplateLiterals": true
+      }
+    ],
+    "eqeqeq": [
+      "error",
+      "always"
+    ],
+    "no-else-return": [
+      "error",
+      {
+        "allowElseIf": false
+      }
+    ],
+    "no-floating-decimal": "error",
+    "no-implicit-coercion": "error",
+    "no-multi-spaces": [
+      "warn",
+      {
+        "ignoreEOLComments": true
+      }
+    ],
+    "yoda": "error",
+    "@typescript-eslint/no-unused-vars": [
+      "error",
+      {
+        "args": "none"
+      }
+    ],
+    "no-tabs": "off",
+    "max-len": [
+      "error",
+      {
+        "code": 120,
+        "ignoreComments": true
+      }
+    ],
+    "no-console": "off",
+    "consistent-return": "off",
+    "class-methods-use-this": "off",
+    "import/prefer-default-export": "off",
+    "no-plusplus": "off",
+    "no-nested-ternary": "error",
+    "no-return-assign": "off",
+    "no-restricted-syntax": "off",
+    "no-await-in-loop": "off",
+    "no-mixed-spaces-and-tabs": [
+      "error",
+      "smart-tabs"
+    ],
+    "import/no-cycle": "off",
+    "@typescript-eslint/explicit-function-return-type": "warn",
+    "import/extensions": "off",
+    "no-underscore-dangle": [
+      "error",
+      {
+        "allowAfterThis": true
+      }
+    ],
+    "no-continue": "off",
+    "no-empty": [
+      "error",
+      {
+        "allowEmptyCatch": true
+      }
+    ],
+    "@typescript-eslint/explicit-module-boundary-types": "off",
+    "no-void": "off",
+    "curly": [
+      "error",
+      "all"
+    ],
+    "no-return-await": "error"
+  }
+}
\ No newline at end of file
diff --git a/makefile b/makefile
new file mode 100644
index 0000000..0dd4407
--- /dev/null
+++ b/makefile
@@ -0,0 +1,33 @@
+.SILENT:
+
+PACKAGE_VERSION=$(shell cat package.json | grep -i version | sed -e "s/ //g" | cut -c 12- | sed -e "s/\",//g")
+
+.PHONY: install
+install:
+	pnpm install
+
+.PHONY: build
+build:
+	pnpm run build
+
+.PHONY: lint
+lint:
+	pnpm run lint
+
+.PHONY: npmjs
+npmjs:
+	echo "//registry.npmjs.org/:_authToken=$$NPM_TOKEN" >> .npmrc
+	echo "@hecht-a:registry=https://registry.npmjs.org/" >> .npmrc
+
+.PHONY: publish-npmjs
+publish-npmjs:
+	yarn publish --access public --registry https://registry.npmjs.org/ --new-version $(PACKAGE_VERSION) --non-interactive
+
+.PHONY: github-tag
+github-tag:
+	git tag -a v$(PACKAGE_VERSION) -m "update to v$(PACKAGE_VERSION)"
+	git push origin v$(PACKAGE_VERSION)
+
+.PHONY: types
+types:
+	pnpm run types
\ No newline at end of file
diff --git a/package.json b/package.json
index 5ba9c82..6fee67f 100644
--- a/package.json
+++ b/package.json
@@ -1,15 +1,44 @@
 {
-  "name": "form-validator",
-  "private": true,
+  "name": "@hecht-a/form-validator",
   "version": "1.0.0",
+  "description": "This is a package to validate forms in frontend.",
+  "private": false,
   "type": "module",
+  "main": "lib/index.js",
+  "types": "lib/index.d.ts",
+  "files": [
+    "lib"
+  ],
+  "author": {
+    "name": "Axel Hecht",
+    "url": "https://github.com/hecht-a"
+  },
+  "bugs": {
+    "url": "https://github.com/hecht-a/form-validator/issues"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/hecht-a/form-validator.git"
+  },
   "scripts": {
-    "dev": "vite",
-    "build": "tsc && vite build",
-    "preview": "vite preview"
+    "build": "rollup --config rollup.config.ts",
+    "types": "tsc --declaration --emitDeclarationOnly --project tsconfig.types.json",
+    "lint": "eslint --ext .ts,.js ."
   },
   "devDependencies": {
-    "typescript": "^4.6.4",
-    "vite": "^3.0.7"
+    "@rollup/plugin-typescript": "^8.4.0",
+    "@typescript-eslint/eslint-plugin": "^4.33.0",
+    "@typescript-eslint/parser": "^4.33.0",
+    "eslint": "^7.32.0",
+    "eslint-config-airbnb-base": "^14.2.1",
+    "eslint-config-airbnb-typescript": "^12.3.1",
+    "eslint-plugin-import": "^2.26.0",
+    "eslint-plugin-json": "^2.1.2",
+    "rollup": "^2.79.0",
+    "rollup-plugin-delete": "^2.0.0",
+    "rollup-plugin-terser": "^7.0.2",
+    "tslib": "^2.4.0",
+    "typescript": "^4.8.2",
+    "vite": "^3.1.0"
   }
 }
\ No newline at end of file
diff --git a/rollup.config.ts b/rollup.config.ts
new file mode 100644
index 0000000..2f3df46
--- /dev/null
+++ b/rollup.config.ts
@@ -0,0 +1,43 @@
+import remove from "rollup-plugin-delete";
+import {resolve} from "node:path";
+import {terser} from "rollup-plugin-terser";
+import typescript from "@rollup/plugin-typescript";
+
+export default [
+    {
+        input: resolve("src", "Validator/index.ts"),
+        plugins: [
+            remove({targets: resolve("lib", "*")}),
+            typescript(),
+            terser()
+        ],
+        output: {
+            file: resolve("lib", "Validator/index.js"),
+            format: "cjs"
+        }
+    },
+    {
+        input: resolve("src", "Error/index.ts"),
+        plugins: [
+            remove({targets: resolve("lib", "*")}),
+            typescript(),
+            terser()
+        ],
+        output: {
+            file: resolve("lib", "Error/index.js.js"),
+            format: "cjs"
+        }
+    },
+    {
+        input: resolve("src", "index.ts"),
+        plugins: [
+            remove({targets: resolve("lib", "*")}),
+            typescript(),
+            terser()
+        ],
+        output: {
+            file: resolve("lib", "index.js"),
+            format: "cjs"
+        }
+    }
+];
\ No newline at end of file
diff --git a/tsconfig.types.json b/tsconfig.types.json
new file mode 100644
index 0000000..686bc68
--- /dev/null
+++ b/tsconfig.types.json
@@ -0,0 +1,9 @@
+{
+  "extends": "./tsconfig.json",
+  "files": ["src/index.ts"],
+  "compilerOptions": {
+    "declaration": true,
+    "declarationMap": true,
+    "outDir": "./lib"
+  }
+}
\ No newline at end of file