What keypress visualisation overlay tool are you using in these demo gifs?

[airtonix]

Curious, as screenkey is a bit meh.

[akinomyoga]

I was asked that before (cf #401 (comment)). It's a modified version of brookhong/KeyCastOW, but it's a Windows software. I'm not sure if it works on Wine (or even on Wine/Wayland) because I haven't tried that.