Ipad or Android as second screen for Linux

I just found the APP VirtScreen on Github

https://github.com/kbumsik/VirtScreen

which works on Kubuntu with the provided .deb package.

It works on OpenSuse with the provided AppImage

https://cubiclenate.com/2019/09/04/virtscreen-on-opensuse/

But actutally with the sources provided, anyone there that puts it in the buildserce with a rpm, as it is really a helpful tool
Need some speed imporovment, but for displaying PDF or documents great.