Jesús Muñoz

👨‍💻 Agentic & Data Engineer
-Exploring what AI agents can *actually* do
-Critical thinking over hype
-Technical threads & project learnings
(🇪🇸 / 🇬🇧)

[Jesús Muñoz @quejicus91]

Now that “Scene 0” works as a tutorial, next step is building the start menu and a save system for upcoming chapters and scenes. Step by step 💪
#vibecoding #gamedev #threejs

[Jesús Muñoz @quejicus91]

Here we go again!!! Codex UI (where chapters and lore will live) with placeholders for now. Getting more excited with every new feature added!

Everything coded with GPT-5.3-Codex + Three.js, and UI assets generated with Nano Banana Pro + Meshy (3D characters) + Hailuo (background loop) + ElevenLabs (voices and sounds). We keep building! 🥳

[Jesús Muñoz @quejicus91]

@steipete @MaziyarPanahi Does it still make sense to use 5.4 mid for planning and 5.4 high for coding? 🤔

[Jesús Muñoz @quejicus91]

@OpenAIDevs My brain needs a break after all the latest news 😵

[Jesús Muñoz @quejicus91]

@adilmania That's so cool!! March comes strong too 😅

[Jesús Muñoz @quejicus91]

@nikitabier Time to improve our writing skills 🙌

[Jesús Muñoz @quejicus91]

@chongdashu No worries 😂 good content deserves 1x 🙌

[Jesús Muñoz @quejicus91]

@shantanugoel @chongdashu I had the same post copied, ready to warn him 😅

[Jesús Muñoz @quejicus91]

🤪🤪🤪

[Jesús Muñoz @quejicus91]

5.4 on Th (ink) ursday? 🤔

[OpenAI @OpenAI]

GPT-5.4 Thinking and GPT-5.4 Pro are rolling out now in ChatGPT.

GPT-5.4 is also now available in the API and Codex.

GPT-5.4 brings our advances in reasoning, coding, and agentic workflows into one frontier model.

[Jesús Muñoz @quejicus91]

Good night guys and sweet dreams 😅

[Jesús Muñoz @quejicus91]

5.4 on Th (ink) ursday? 🤔

[OpenAI @OpenAI]

5.4 sooner than you Think.

[Jesús Muñoz @quejicus91]

5.4 on Th (ink) ursday? 🤔

[Jesús Muñoz @quejicus91]

@dangreenheck That’s so cool! Great job, Dan 👏 Sharing some WIP could also be really useful for getting feedback 🙌

[Jesús Muñoz @quejicus91]

Buy a GPU, the revolution 🔥You can use this referal link: https://t.co/knSNsxnPOg

[Ahmad @TheAhmadOsman]

GPU GIVEAWAY

Buy a GPU × GTC 2026 = Give a GPU

> RTX PRO 6000 Blackwell
> 96GB VRAM • NVFP4
> ~$15K value
> Brand new

If this does well I’ll ask NVIDIA for more GPUs next time… maybe even DGX Sparks

How to enter?
Short clip here
Full clip in the replies

GO GO GO

[Jesús Muñoz @quejicus91]

@ChShersh Short answer: Let me ask my agent…

[Jesús Muñoz @quejicus91]

@OpenAI Sooner than Thursday 5th? 😵

[am.will @LLMJunky]

Codex 0.107.0 is here, and with it: FORKS🍴

This minor update includes the ability to fork your current chat history directly with custom multi agents with just a quick prompt.

"Fork this session using n subagent(s)"

This unlocks some interesting use-cases where you can launch multiple agents that retain all of your chat history up to that point, each in their own independent session.

For example, you've been discussing architecture with Codex for 20 minutes, talked through constraints, reviewed existing code, settled on a model.

Now you want to see two different implementation strategies side by side. Fork lets both children start from that full shared understanding.

With a normal spawn, you'd have to re-explain the entire context to each child, and they'd inevitably miss nuance from the earlier conversation - which is basically a form of compaction/compression.

With something like this, you could also just tell it to fork itself 5 times, and implement the same UI/frontend 5 different times in their own worktree to see which one you like the most.

Other potential uses:

- branching after reviews
- try and rollback patterns using worktrees
- parallel debugging strategies

Otherwise, this is a minor update with improvements to the app server, realtime transcription, and memory.

Enjoy!

[Jesús Muñoz @quejicus91]

Now that “Scene 0” works as a tutorial, next step is building the start menu and a save system for upcoming chapters and scenes. Step by step 💪
#vibecoding #gamedev #threejs

[Jesús Muñoz @quejicus91]

@SalenoXP That’s impressive 😵

[Jesús Muñoz @quejicus91]

What are your expectations for DeepSeek V4? It’s supposed to be released next week 👀