diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..7171c65
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,35 @@
+# adopted from https://github.com/archilogic-com/actions/blob/main/.github/workflows/publish-npm-package.yml
+name: Publish NPM package
+on:
+  push:
+    tags:
+      - 'v[0-9]+.[0-9]+.[0-9]+*'
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc' 
+          registry-url: https://registry.npmjs.org/
+      - run: npm ci
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.CI_NPM_TOKEN_READONLY }}
+      
+      - run: npm run typecheck && npm run test
+      - id: get-dist-tag
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const { parse } = require('semver')
+            const { version } = require('./package.json')
+
+            const [numberOrTag] = parse(version).prerelease
+            const isTag = typeof numberOrTag === 'string'
+            const distTag = isTag ? numberOrTag : 'latest'
+
+            core.setOutput('dist-tag', distTag)
+      - run: npm run build && npm publish --tag ${{steps.get-dist-tag.outputs.dist-tag}}
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.CI_NPM_TOKEN }}
\ No newline at end of file
diff --git a/.github/workflows/tests.js.yml b/.github/workflows/tests.js.yml
new file mode 100644
index 0000000..b9aaa0c
--- /dev/null
+++ b/.github/workflows/tests.js.yml
@@ -0,0 +1,27 @@
+# This workflow will do a clean install of node dependencies, build the source code and run tests across different versions of node
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-nodejs-with-github-actions
+
+name: Type check and tests
+
+on: 
+  push:
+    branches:
+     - main
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+      - name: Setup node
+        uses: actions/setup-node@v3
+        with:
+          node-version-file: '.nvmrc'
+      - name: Setup npmrc
+        run: npm config set //registry.npmjs.org/:_authToken=${{secrets.CI_NPM_TOKEN_READONLY}}
+      - run: npm ci
+      - run: npm run typecheck
+      - run: npm run build && npm run test
diff --git a/.gitignore b/.gitignore
index adce4fc..bc52912 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,4 @@
 node_modules
+dist
 *.sublime-project
-*.sublime-workspace
-bundle.js
\ No newline at end of file
+*.sublime-workspace
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index a04bfe5..8054780 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,11 +1,11 @@
 {
-  "name": "2d-visibility-demo-typescript",
+  "name": "@archilogic/2d-visibility",
   "version": "1.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
-      "name": "2d-visibility-demo-typescript",
+      "name": "@archilogic/2d-visibility",
       "version": "1.0.0",
       "license": "MIT",
       "devDependencies": {
diff --git a/package.json b/package.json
index 2f8287c..af9a39d 100644
--- a/package.json
+++ b/package.json
@@ -1,5 +1,5 @@
 {
-  "name": "2d-visibility-demo-typescript",
+  "name": "@archilogic/2d-visibility",
   "version": "1.0.0",
   "description": "",
   "keywords": [],
@@ -9,6 +9,9 @@
     },
     {
       "name": "David Neilsen"
+    },
+    {
+      "name": "Frederic Schwarz"
     }
   ],
   "license": "MIT",
@@ -31,6 +34,7 @@
   "scripts": {
     "dev": "vite",
     "build": "vite build",
-    "lint": "tslint --project tsconfig.json"
+    "test": "vitest --run",
+    "typecheck": "vue-tsc --noEmit"
   }
 }
diff --git a/src/__tests__/visibility.test.ts b/src/__tests__/visibility.test.ts
new file mode 100644
index 0000000..35aa103
--- /dev/null
+++ b/src/__tests__/visibility.test.ts
@@ -0,0 +1,29 @@
+import { loadMap } from "../load-map";
+import { Point, PolygonWithHoles } from "../types";
+import { calculateVisibility } from "../visibility";
+
+describe("when computing visibility in an L shaped polygon", () => {
+  const polygon: PolygonWithHoles = [
+    [
+      [0, 0],
+      [200, 0],
+      [200, 200],
+      [400, 200],
+      [400, 300],
+      [0, 300],
+    ],
+  ];
+
+  const point = new Point(100, 100);
+  const { endPoints } = loadMap(polygon, point);
+  const visibility = calculateVisibility(point, endPoints);
+  it("creates creates a cut off shape", () => {
+    expect(visibility).toMatchObject([
+      [new Point(0, 300), new Point(0, 0)],
+      [new Point(0, 0), new Point(200, 0)],
+      [new Point(200, 0), new Point(200, 200)],
+      [new Point(200, 200), new Point(200, 200)],
+      [new Point(300, 300), new Point(0, 300)],
+    ]);
+  });
+});
diff --git a/tsconfig.json b/tsconfig.json
index a7463ef..620c5c2 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,7 +6,11 @@
         "module": "ESNext",
         "moduleResolution": "node",
         "target": "ESNext",
-        "noEmitHelpers": true
+        "noEmitHelpers": true,
+        "types": [
+            "vitest/globals"
+        ],
+        "skipLibCheck": true,
     },
     "include": [
         "./src/**/*.ts"
diff --git a/vite.config.ts b/vite.config.ts
index b8b52f0..b65e507 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -3,7 +3,6 @@ import dts from "vite-plugin-dts";
 
 export default defineConfig({
   test: {
-    environment: "jsdom",
     globals: true,
   },
   plugins: [dts({ rollupTypes: true })],