Wow, neat!

Is there a reliable screenshot version of this I can install on my own Linux system? Some sort of headless browser, I imagine. I realize this interactive system is much more powerful but it's overkill for an application I have in mind, a best effort single screenshot is fine. I've seen various attempts at doing this over the years and none have really worked reliably.

I'd consider paying a service to do this but it seems like self-installable is better.