Publication notifications for static sites

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

This site will ask users for permission to display notifications.
This site will install a service worker.
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.)
When the service worker detects a new page in the sitemap, it will download it and extract some OpenGraph tags for it.
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.

What can computers do? What are the limits of mathematics? And just how busy can a busy beaver be? This year, I’m writing Busy Beavers, a unique interactive book on computability theory. You and I will take a practical and modern approach to answering these questions — or at least learning why some questions are unanswerable!

It’s only $19, and you can get 50% off if you find the discount code ... Not quite. Hackers use the console!

After months of secret toil, I and Andrew Carr released Everyday Data Science, a unique interactive online course! You’ll make the perfect glass of lemonade using Thompson sampling. You’ll lose weight with differential equations. And you might just qualify for the Olympics with a bit of statistics!

It’s $29, but you can get 50% off if you find the discount code ... Not quite. Hackers use the console!

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