It's me, i was testing pinup popper to see how it works but man, it's so messy and complex, moreover if you don't follow all the passages or use baller installer chances that will not work are high, like in my case. I couldn't play vpx at all. I'll stick with pinballx, maybe it's not fast as they say about pinup popper but it's way easier and everything works great.
I have also a slot machine cabinet with touch play (a bit outdated anyway) and I even created and programmed slot machines in it from scratch, check this out :
https://youtu.be/bJlixV0OawA?si=HgFiNYL-85Vs6QbY
My main pinball cabinet has PinballX, my minicabinet has Maximus Arcade, then I have a weecade cabinet and a slot machine cabinet with touchplay
I have made also a videogame in steam in 2020 and some other stuff http://www.gabartsdigital.altervista.org/#home