In 2021, my overseas cousin set up 12 graphics cards in his garage to mine ETH.
He made $4,000 a month, with $1,800 in electricity costs.
By 2025, mining was banned domestically, and all the graphics cards became scrap metal; he disassembled and sold the parts.
Last week, I went to see him; it was still the same garage, but everything was different.
Six phones, three laptops, one monitor, running the same script, green text scrolling up the screen.
I asked him what he was mining now.
He said it’s called “Claude Code Mining Farm.” No longer mining coins, but mining the BTC market on Polymarket, which settles in 5 minutes.
The address is this:
This account called rename registered only in January 2026, has made 31,221 predictions, with a profit of $383k.
Each device runs the same bot, written by Claude in the afternoon, 47 lines of Python.
Every 5 minutes, a new position opens, the bot scans, enters, and collects profits automatically.
Mining before required graphics cards, cooling, electricity, and luck.
Now what’s needed are phones, WiFi, and Claude Code.
His electricity bill is $89 a month, and last month’s profit was $47k.
I asked why he has so many phones.
He said the platform limits traffic; one phone runs one instance, so six phones mean six times the position size.
That garage, which once lost money mining, is now printing money on Polymarket.
I stood there for twenty minutes, watching the phones one after another vibrate with profit.
He handed me an old iPhone: “Start your own mining farm.”
Mining is dead; farms are opening.