I really like ntfy — a service that allows you to easily send notifications to your phone with just a HTTP request. It's a handy little tool to be able to do mobile notifications to yourself really easily with web standards. I'm fairly technical, and make a lot of my own little things. Small apps that do what I want, integrations and such. Because I work with web, they're all little web apps. Sometimes what I need is a way to send a notification to my phone. I don't need a PWA or native app or anything like that, just a notification with some custom content, and I can tap it to go to a website. ntfy is just that. On my phone I install the app and subscribe to a 'topic' (which is basically just a named event stream). Then I can send notifications to my device simply by making a web request to the ntfy service with that topic name. The topic could be secret — like a long secret key that no one else knows — for private notifications, or it could be public — a notification channel that anyone can subscribe to!