OG Gay Geek@GossiTheDog I had to figure this out by looking through diffs/changelogs... Sign up for hcaptcha, you get a site key and a secret key. Set those to HCAPTCHA_SITE_KEY and HCAPTCHA_SECRET_KEY respectively in your mastodon environment. Restart the web service and you'll have a new check-box to enable hCaptcha on the signup settings page in the admin panel.
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