clynamic/joi.how ? reverse-engineered prompt

Build me a web app that plays an adult e621 style slideshow with a beat synced control experience. I want it to load posts by tags, handle images, gifs, and videos, and let the viewer adjust stroke speed, warmup, duration, and orgasm timing. It should also be able to trigger little events during the session, like changing speed or telling the user to do something, and have a basic hypnosis style mode.

Please include a simple settings screen with import and export so people can save their setup. If it makes sense, add support for connecting to vibrators through Intiface too. Keep the UI clean, modern, and easy to use on mobile and desktop. If you need to look up current docs or APIs online while building it, go ahead.