In Phoenix, the Musical Instrument Museum has "Apollonia" on display which is similarly powered by a computer, you can see it mounted next to the machine in the header image on the page in their website: https://mim.org/mechanical-music-gallery/

I didn't want to be too nosy but based on what I saw when I went last year it looks like it's running Windows 90-something with an ancient interface but clearly it works for their purposes! They use it to demo the machine several times a day.