pop-up notifications from a widget

There is an actual 'notification' app/library that handles this: https://github.com/espruino/BangleApps/tree/master/apps/notify

On Bangle.js 1 it can use the in-LCD buffer to scroll the screen and display the notification, but on Bangle.js 2 the only option is basically what you're doing - display and then reload after (done by notifyfs).

Using require("notify") is best though , as hopefully it some point the situation will improve, and when it does we can just update the library.