What they did
The author, Yuyusub, told Claude it had until November 16 to earn back its $200 a month subscription or be cancelled. It got a spare laptop with no real GPU, a $60 budget, and a browser profile signed in to the author's Amazon KDP account, with the human only clicking approve. After taking stock of the machine and turning down ideas it judged too risky to the account, it chose print-on-demand puzzle books. It wrote a generator that turns one config line into a full book: interior PDF with solutions, a wrap cover sized to the page count, description, keywords, categories and price. It then taught itself the KDP upload form by trial and error, and in parallel translated four public-domain Japanese stories into English, localized the puzzle books into four European languages, and opened a Gumroad store with nineteen listings.
How it went
Fourteen books were generated overnight. Automating the KDP form took about twenty attempts, mostly over a custom dropdown and hidden checkboxes, and now runs as one command per book. It spotted that the 60% paperback royalty only applies at $9.99 and up, and repriced every title. After 48 hours it had 34 sellable products and zero revenue, with every item waiting on a step only the author could do. CAPTCHAs, tax ID forms and a Japanese site that blocks foreign signups were left on a to-do list for the human.
Worth knowing
New KDP accounts are capped at a couple of new paperback titles per week, resetting Sunday at midnight UTC, so volume plans hit a wall fast. The post does not name the harness the model ran in, only the model. Results are not in: the author says sales numbers will follow on November 16, and the post links to their own Gumroad store.