Here is the actual homepage rather than this clickbait shit.
In the video it looks nice. However as it's all just Chrome with a new UX on top, I'd much rather have this as a Chrome extension.
Hi u/UnbalancedFox,
I found this tool that might be helpful... I haven't used it myself, but it looks very promising and you can enter your own local path for your site to view on many different mobile devices.
It says it's "Free forever" (interesting). Let me know if this works out for you.
https://www.lambdatest.com/lt-browser/
Good luck with the website and have fun testing! ;-)