diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
new file mode 100644
index 0000000..91e428e
--- /dev/null
+++ b/.github/workflows/ci.yml
@@ -0,0 +1,29 @@
+name: "Test"
+
+on:
+  pull_request:
+    types: [opened, synchronize, reopened]
+
+# Only allow one workflow run at a time per PR
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  test:
+    name: "Test"
+    runs-on: ["ubuntu-latest"]
+    env:
+      TZ: "Europe/Rome"
+    steps:
+      - name: "Checkout"
+        uses: actions/checkout@v4
+
+      - name: "Set up Node.js"
+        uses: actions/setup-node@v4
+        with:
+          node-version: "22.x"
+          cache: "npm"
+
+      - name: "Test the package"
+        run: npm cit --quiet
+        timeout-minutes: 5
\ No newline at end of file
diff --git a/.github/workflows/npm-publish.yml b/.github/workflows/npm-publish.yml
new file mode 100644
index 0000000..374161e
--- /dev/null
+++ b/.github/workflows/npm-publish.yml
@@ -0,0 +1,33 @@
+# This workflow will run tests using node and then publish a package to GitHub Packages when a release is created
+# For more information see: https://docs.github.com/en/actions/publishing-packages/publishing-nodejs-packages
+
+name: "Publish to npm"
+
+on:
+  release:
+    types: ["created"]
+
+jobs:
+  build:
+    runs-on: "ubuntu-latest"
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+      - run: npm cit
+        timeout-minutes: 5
+
+  publish-npm:
+    needs: build
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: 22
+          registry-url: https://registry.npmjs.org/
+      - run: npm ci
+      - run: npm publish --provenance
+        env:
+          NODE_AUTH_TOKEN: ${{secrets.NPM_PUBLISH_TOKEN}}
diff --git a/README.md b/README.md
index 7759660..5c768bd 100644
--- a/README.md
+++ b/README.md
@@ -32,3 +32,9 @@ postTask(() => {
 	trackEvent("something-happened");
 }, "background");
 ```
+
+## Formats
+
+This package is equally available as ESM and CJS and has a single, default
+export.
+The code is identical between the formats except on the exporting itself.
\ No newline at end of file
diff --git a/index.d.ts b/index.d.ts
index 6587509..f200e05 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// Copyright © 2024 Adevinta
 
 declare module "post-task" {
 	/**
diff --git a/index.mjs b/index.mjs
index e396976..ff51c8e 100644
--- a/index.mjs
+++ b/index.mjs
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// Copyright © 2024 Adevinta
 
 /**
  * The priority of the task: these are the priorities of the Scheduler API.
@@ -12,20 +13,20 @@
  * The task will be executed as soon as possible, in idle time, but guaranteed within the timeout.
  * @type {PriorityConfigurationFallback}
  */
-const priorityIdleTimeouts = Object.freeze({
-	background: 1000,
-	"user-visible": 100,
-	"user-blocking": 50,
+const priorityIdleTimeouts = Object.create(null, {
+	background: { value: 1000, enumerable: true },
+	"user-visible": { value: 100, enumerable: true },
+	"user-blocking": { value: 50, enumerable: true },
 });
 
 /**
  * The timeouts used for setTimeout, which define the delay before the task is executed.
  * @type {PriorityConfigurationFallback}
  */
-const priorityCallbackDelays = Object.freeze({
-	background: 150,
-	"user-visible": 0,
-	"user-blocking": 0,
+const priorityCallbackDelays = Object.create(null, {
+	background: { value: 150, enumerable: true },
+	"user-visible": { value: 0, enumerable: true },
+	"user-blocking": { value: 0, enumerable: true },
 });
 
 /** @typedef {() => void} Task */
diff --git a/package.json b/package.json
index 19d1c35..53ad915 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
 	"name": "post-task",
 	"version": "1.1.3",
-	"description": "A polyfill for the Scheduler API with a pre-configured progressively-enhanced function which allows for task division.",
+	"description": "A polyfill for the Scheduler API with a pre-configured progressively-enhanced function helps to split long-running tasks into chunks.",
 	"type": "module",
 	"exports": {
 		"types": "./index.d.ts",