I can't read your README; I can't scroll down. Sorry.
This is still the same browser session.
I'm on a laptop running FF 93.0, with Noscript and Adblocker Ultimate, both enabled. FF is running full-screen. It's Win10.
I didn't record what I saw earlier. Now, I see a number of clickable placeholder images, and a bunch of "Try me" buttons. My impression is that the site is for making marketing-friendly tags. That's cool, just not my thing. I didn't click.