@bunkaich: The limit of my inspiration = the limit of Codex. It's that seriously amazing—Codex can do absolutely anything. This is…

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Summary

A user used OpenAI's Codex to reverse-engineer and fix a faulty AliExpress MP3 player, rewriting its OS to resolve Bluetooth audio stuttering and improve controls.

The limit of my inspiration = the limit of Codex. It's that seriously amazing—Codex can do absolutely anything. This is a cheap MP3 player I bought on AliExpress. But the Bluetooth audio stuttering and clunky controls had me shelving it. But yesterday, out of nowhere while I was in the shower, I had an eureka moment,                                           and after cracking open the shell and showing the chip to Codex, it started investigating like a champ, and once I connected it to my Mac just like it guided me to, it sucked up the OS, analyzed the binaries, whipped up a custom OS with tweaks to the likely culprits, and finally, when I ran the command it pointed me to, the writing process kicked off, and the result was... it fixed it... The Bluetooth audio stuttering is gone, the video's a bit hard to follow, but it changed the originally left-right button menu navigation to intuitive up-down button selection. (Why didn't they just do that from the start... lol) What is this feeling, I wonder—does this excitement come through to you all? ...This is insane, seriously...
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Cached at: 05/26/26, 09:14 PM

The limit of my inspiration = the limit of Codex.
It’s that seriously amazing—Codex can do absolutely anything.

This is a cheap MP3 player I bought on AliExpress.
But the Bluetooth audio stuttering and clunky controls had me shelving it.

But yesterday, out of nowhere while I was in the shower, I had an eureka moment,                                          

and after cracking open the shell and showing the chip to Codex, it started investigating like a champ,
and once I connected it to my Mac just like it guided me to, it sucked up the OS, analyzed the binaries, whipped up a custom OS with tweaks to the likely culprits,
and finally, when I ran the command it pointed me to, the writing process kicked off,

and the result

was… it fixed it…

The Bluetooth audio stuttering is gone,
the video’s a bit hard to follow, but it changed the originally left-right button menu navigation to intuitive up-down button selection. (Why didn’t they just do that from the start… lol)

What is this feeling, I wonder—does this excitement come through to you all? …This is insane, seriously…

ぶんかい@AIで遊ぶ人@bunkaich·May 25: Ah, Codex, that pattern again, huh?
You’re really capable of anything, aren’t you…

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