I wouldn't call slide show apps niche at this point in history. https://web.dev/multi-screen-window-placement/#use-cases:~:text=Slideshow%20apps%20can%20show%20

I wouldn't call slide show apps niche at this point in history. https://web.dev/multi-screen-window-placement/#use-cases:~:text=Slideshow%20apps%20can%20show%20speaker%20notes,the%20presentation%20on%20an%20external%20projector https://web.dev/multi-screen-window-placement/#use-cases:~:t....