@itsolelehmann: i'm obsessed with AI DIY projects. my favorite one right now is this broccoli farmer in hokkaido, japan using Codex to …
Summary
A Japanese broccoli farmer with no engineering background used OpenAI's Codex to build custom DIY automation tools for his 100-hectare farm, including remote greenhouse vent control and temperature monitoring.
View Cached Full Text
Cached at: 06/05/26, 05:20 PM
i’m obsessed with AI DIY projects.
my favorite one right now is this broccoli farmer in hokkaido, japan using Codex to run his 100-hectare farm
this guy never studied agriculture, never inherited land, started out as a civil servant.
but he wanted his farm to run better, and instead of paying an engineering firm he couldn’t afford, he just built the tools himself.
here’s what he’s built on his own:
remote control of his greenhouse vents from a chat app, wired up with an esp32 board, a motor driver, and cloudflare workers
a bot that checks each greenhouse’s temperature and opens the vents when it gets too hot
satellite crop-health data laid over a map of his own fields
an airtable base linking his plots, tasks, materials, and sensors
wiring diagrams of his electrical panels, generated from a photo
stuff like this used to be locked behind machinery and engineers only the big agribusinesses could pay for.
but this legend just breezed past all of it with a laptop and Codex lol
Similar Articles
Meet the broccoli farmer running his farm with GPT-5.6.
Hiroki, a broccoli farmer, uses GPT-5.6 to run his farm, showcasing a real-world application of AI in agriculture.
@OpenAI: Meet Hiroki (@tomiyasu16). A broccoli farmer running his farm with GPT-5.6.
OpenAI shares a story about Hiroki, a broccoli farmer who uses GPT-5.6 to manage his farm.
Codex-maxxing
Jason Liu shares how he uses OpenAI's Codex for knowledge work beyond coding, leveraging durable threads, voice input, and steering to integrate coding agents into his broader workflow.
@sama: kicking off a bunch of codex tasks, running around with my kid in the sunshine, and then coming back at naptime to find…
Sam Altman shares a personal anecdote about OpenAI Codex completing coding tasks automatically while he was away, expressing optimism for the future of AI automation.
@bibryam: This OpenAI article is an absolute gold mine for harness engineers. The insight isn’t “AI writes code.” It’s: → how to …
OpenAI shares how its team built a full software product with zero manually-written code using Codex agents, focusing on designing environments and feedback loops for reliable agent operation.