YNWAC_Timer

YNWAC Timer

Empty Chrome extension template using Manifest V3.

Requirements

• Node.js 20 or newer
• Google Chrome or another Chromium-based browser

Develop

Run a quick template validation:

npm run check

If npm is not available yet, use the included PowerShell helper:

.\scripts\check.ps1

During development, run:

npm run dev

Or without npm:

.\scripts\dev.ps1

Then load the extension in Chrome:

1. Open chrome://extensions.
2. Turn on Developer mode.
3. Click Load unpacked.
4. Select this folder: D:\workspace\YNWAC_Timer.

Project Layout

• manifest.json: Chrome extension manifest.
• src/background.js: extension background service worker.
• src/content.js: optional page script, not enabled by default.
• popup/: toolbar popup UI.
• options/: extension options page.
• scripts/: local Node.js helper scripts.

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