Rafa Jiménez (@_rafa_js) header
Rafa Jiménez (@_rafa_js) profile picture

Software entrepreneur. The only metric that matters is shipped. Hate bullshit artists.

Switzerland
Joined May 2012
Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)Photo by Rafa Jiménez (@_rafa_js)
If you are a serious founder in Dubai, talk to @apagut
Two years ago I sold my company. I thought the next chapter would be simple. It wasn’t. I’ve been in Andorra since 2021. It’s beautiful, my daughter was born here, and it will always be special. But with ~80k people (mostly freelancers and retirees), no real network, and the nearest airport 3 hours away, it’s not the place for someone in their 30s who still wants to build. I aimed for the US but couldn’t get the visa (long story involving a law firm in Florida). So, after much consideration, I'm moving to Dubai. I’ve been an entrepreneur most of my life. Right now I want to join something that’s already big, in motion, and fun. I don’t want another remote-only chapter. I want an office, a team I see daily, big challenges, and high standards. It took me a while to admit that staying here meant I couldn’t become who I want to be. I can’t stand that any longer. At HandCash (CEO & co-founder) I ran product, design, and marketing. I raised money, hired, and led teams. We tackled some of the biggest challenges in crypto/fintech and I’m proud of what we shipped. The team came up with some of the most relevant innovations in our sector. I’ve been deep in AI since before it was cool. In 2016 I led Accenture’s first AI division in Madrid for a year (until we raised €1M for HandCash!) People who’ve worked with me usually say I’m honest, and my former employees always said I was a great leader. (Don't take my word, ask them!) If you know a founder or executive in Dubai building something cool in AI, robotics, or fintech, please share this with them. I’d love to have a coffee in the coming weeks. I land in Dubai on Nov 10th. DMs are open or email me at [email protected] If you’re reading this, help me by sharing it. Thanks. PS: This is a photo of me and Rafa, my co-founder in multiple startups! 2018... this is the biggest office we had lmao! I think you get it now.
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#CaptainCode ❤️ #OpenShell. Ensure your prompt runs safely! CaptainCode has experimental support for @NVIDIAAI / @Canonical OpenShell. You define the task, permitted files and tests. The worker runs inside a sandbox with policy-controlled file and network access. Tests run in the sandbox, and Captain Code returns a checked patch for review. 💡 Quick example of how this helps. Imagine you want to task your agent with improving a cleanup script on your laptop, and you are worried it might delete the wrong files during its tests. You absolutely want to test that safely in a sandbox! 👉 Just type in CaptainCode: /openshell test and improve scripts/cleanup.py, making sure it only deletes *.md files ⚙️ Captain code will confirm: allowed=scripts/cleanup.py verify=["python3","-m","pytest","tests/test_cleanup.py"] and come back with a verified patch and test results, all from a disposable sandbox. 🔐 Nothing ran on your machine. You review the diff, confirm the tests pass, and apply it only when you are ready. ✅ What lands in your terminal: • Snapshot taken at HEAD • Sandbox worker 1/1: scripts/cleanup.py + tests/test_cleanup.py • Verify: pytest tests/test_cleanup.py — 3 passed, 0 failed • Advisory host review: no issues found • Patch exported: /tmp/cc-openshell-5a9f.patch Thank you @jtm_tech, @AlexWatson405, @a_golshan @NVIDIAAIDrew and the broader community for bringing OpenShell to life 👏 We intend to contribute boundary tests, runtime fixes and evidence formats to OpenShell. 📖 Learn more: lemma.ventures/blog/captain-… 🕹️ Test it today: captaincode.ai 🧐 Release notes: github.com/lemma-ventures/ca… 🐚 OpenShell: github.com/lemma-ventures/ca… #AIAgents #DevTools #OpenSource
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Unpopular opinion... 99% of what you find online is either AI-generated or disingenuous in essence. How bad!
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Follow a structured process that you can audit and steer: 1. Research synthesis 2. Persona & journey 3. Mobile Information Architecture & App Flow 4. Wireframes 5. UI Copy 6. Design system 7. High-fidelity composition Here's the complete UX design pipeline: github.com/rafa-js/jony
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"Build me a mobile app." That's how you get the same AI slop as everyone else. It doesn't matter which frontier model you are using. Try this next time...
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