Publication notifications for static sites

I have a new mini-project for this site: notifications about new pages. Here’s how it will work:

1. This site will ask users for permission to display notifications.
2. This site will install a service worker.
3. The service worker will periodically check the /sitemap.xml for this site. It will store the last seen state. (This could also work with an RSS feed but I haven’t set one up.)
4. When the service worker detects a new page in the sitemap, it will download it and extract some OpenGraph tags for it.
5. The service worker will display a notification with the page title, image, etc.

I don’t even know if this is possible. But if I can make a purely static notifications system, it would be pretty cool.

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