diff --git a/package.json b/package.json
index 3d875bb..fa159bf 100644
--- a/package.json
+++ b/package.json
@@ -2,48 +2,10 @@
     "type": "module",
     "types": "./dist",
     "dependencies": {
-        "@yanick/updeep": "link:../updeep",
-        "lodash": "^4.17.21",
-        "lodash-es": "^4.17.21",
-        "moize": "^6.1.0",
-        "redux": "^4.0.5",
-        "ts-action": "^11.0.0",
-        "updeep": "^1.2.1"
-    },
-    "devDependencies": {
-        "@babel/cli": "^7.8.4",
-        "@babel/core": "^7.15.5",
-        "@babel/plugin-transform-modules-commonjs": "^7.15.4",
-        "@babel/preset-env": "^7.8.7",
-        "@babel/preset-typescript": "^7.15.0",
-        "@types/jest": "^27.0.2",
-        "@types/lodash": "^4.14.149",
-        "@types/sinon": "^7.5.2",
-        "@typescript-eslint/eslint-plugin": "^2.23.0",
-        "@typescript-eslint/parser": "^2.23.0",
-        "better-docs": "^2.3.2",
-        "docsify": "^4.11.2",
-        "docsify-cli": "^4.4.0",
-        "docsify-tools": "^1.0.20",
-        "dtslint": "^3.3.0",
-        "eslint": "^6.8.0",
-        "eslint-config-prettier": "^6.10.0",
-        "eslint-plugin-import": "^2.20.1",
-        "eslint-plugin-prettier": "^3.1.2",
-        "glob": "^7.1.6",
-        "jest": "^27.2.5",
-        "jsdoc": "^3.6.7",
-        "prettier": "^2.4.1",
-        "promake": "^3.1.3",
-        "sinon": "^9.0.1",
-        "standard-version": "^8.0.0",
-        "tap": "15",
-        "ts-node": "^8.10.2",
-        "tsd": "^0.17.0",
-        "typedoc": "0.22.5",
-        "typescript": "^4.4.4"
+        "remeda": "^1.0.1"
     },
     "license": "MIT",
+    "type": "module",
     "main": "dist/index.js",
     "name": "updux",
     "description": "Updeep-friendly Redux helper framework",
@@ -68,9 +30,9 @@
         "url": "https://github.com/yanick/updux/issues"
     },
     "homepage": "https://github.com/yanick/updux#readme",
-    "prettier": {
-        "tabWidth": 4,
-        "singleQuote": true,
-        "trailingComma": "es5"
+    "types": "./dist/index.d.ts",
+    "devDependencies": {
+        "typescript": "^4.7.4",
+        "vitest": "^0.22.1"
     }
 }
diff --git a/src/Updux.ts b/src/Updux.ts
new file mode 100644
index 0000000..795ac3d
--- /dev/null
+++ b/src/Updux.ts
@@ -0,0 +1,4 @@
+
+export class Updux {
+
+}
diff --git a/src/initial.test.ts b/src/initial.test.ts
index 4ad629e..bd9924f 100644
--- a/src/initial.test.ts
+++ b/src/initial.test.ts
@@ -1,12 +1,17 @@
+import { test, expect } from 'vitest';
+
 import { Updux } from './Updux.js';
 
-test('initial', () => {
-    const foo = new Updux({
-        initial: { root: 'abc' },
-        subduxes: {
-            bar: new Updux({ initial: 123 }),
-        },
-    });
-
-    expect(foo.initial).toMatchObject({ root: 'abc', bar: 123 });
+const foo = new Updux({
+    initial: { root: 'abc' },
+    subduxes: {
+        bar: new Updux({ initial: 123 }),
+    },
 });
+
+test( 'initial value', () => {
+    expect(foo.initial).toEqual({
+        root: 'abc',
+        bar: 123
+    })
+} );