Slightly related, but I've also been working on and off for a few years on my own Type 1 Diabetes management solution (https://github.com/algao1/iv3) to send alerts and such. I was thinking of eventually incorporating some kind of automatic remedial solution eventually to help keep my glucose in range, but haven't had any time to look into it yet. - Source: Hacker News / 3 months ago

If you go to the settings, there should be a notification category, which then contains another menu "App Notifications" where you can see all the apps that are allowed to receive notifications, but I don't know if this will stop google play services to receive these identifiers. I use GrapheneOS, so I don't have any google play services running, but for the apps where I need notifications I use... - Source: Hacker News / 3 months ago

Kind of similar, in the early days of COVID, I accidentally discovered that my state's website would have test results available several hours before they sent out the "view your results" email. So I made a script that would check the site every five or ten minutes and then ping me as soon as the result changed to something besides PENDING. In the course of that I stumbled on https://ntfy.sh/ which solved the... - Source: Hacker News / 6 months ago

I connect any app that supports https://unifiedpush.org/ to a self hosted https://ntfy.sh instance for fully self hosted push notifications. Source: 6 months ago

Changedetection.io just donated to the awesome crew over at ntfy.sh. Source: 6 months ago

Https://visualping.io does a nice similar job and is free for moderate personal use. - Source: Hacker News / 9 months ago

Could try visualping.io but it's not gonna be as convenient as coursicle. Source: 12 months ago

You can also monitor up to five webpages for free with VisualPing. Source: about 1 year ago

As a belt and braces approach you could try using something like visualping.io (others are available) to monitor the URL https://recruitment.raf.mod.uk/apply/applying-for?c=15&r=293&type=regular and check when the wording "THIS ROLE IS CURRENTLY CLOSED FOR NEW APPLICATIONS. PLEASE REGISTER YOUR INTEREST AND WE WILL BE IN TOUCH WHEN IT REOPENS." disappears, and it will send you an email when it detects a change. Source: about 1 year ago

Also I was using https://visualping.io/ to track the change. Like you can track the change on the button change for that particular page ( like the button being now back in stock instead of grayed out). Source: about 1 year ago