I really like the idea, well done. Perhaps, you could make the "Subscribe" box more prominent as I guess most of your users would prefer to get their failure stories in their inbox rather than visiting the website, and the Subscribe box is not that visible as I missed it while checking the website for the first time.
Consider changing your headline; it doesn't tell what your product, Frederick.ai, does. Does it create webpages? Does it write code? Is it a just another Nextjs boilerplate?
Cool idea, Roland. I like it, though receiving a return on your investment, basically your time and one-time payment, only after 100 days seems a little bit excessive. Do you think it is possible to get at least some kind of short summary after certain milestones/time passed, like every week?