Is there an example of how to integrate a captcha into a perch form somewhere?
Not that we know of. We're not terribly fond of captchas as a solution.
But can they be integrated in theory?
It's not something I've looked into. Possible by writing a custom validation helper.
Do you have a specific implementation in mind?
I know captchas are not great spam solutions, but it would be nice to have an option for the Perch Forms for when our customers require it.
Is it possible to connect https://www.google.com/recaptcha/intro/index.html to Perch Forms?