We will open source soon.

You can block today, Kitesurf doesn't try to hide.

https://developers.cloudflare.com/browser-run/reference/auto... https://developers.cloudflare.com/browser-run/faq/

From the final notes section of their announcement blog post:

> One last thing: we're going to open source Kitesurf once we're ready — hopefully soon. Our goal is to let any customer deploy their own version of Kitesurf on their own accounts, if they want to.