New issue by russnes on void-packages repository

https://github.com/void-linux/void-packages/issues/32286

Description:
On most distros, when using a KDE Plasma, there is an integrated notification applet that appears when package updates are available. It is usually integrated with the [Discover](https://apps.kde.org/discover/) application. This would be a convenient way to get notified about and keep your system up to date also in Void, and with Discover you would get the benefit of all the features for browsing packages (but that should maybe be a separate PR-issue) already available.

I had a discussion with some people on IRC a while ago that I unfortunately forgot to write down, but someone said that you would possibly only have to implement the back-end link to `xbps` from some other package. Hoping it might help in considering where to start.