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Articles by Çalgan Aygün
Building your own Git remote in under an hour
git·vodka's idea had been sitting in the back of my mind for a while. not as some big product idea. I just wanted a tiny git remote I could run for myself, friends, and family. something a little nicer than throwing bare repos on a server, but without turning it into another giant developer platform. today, with everyone suddenly talking about GitHub alternatives again after the recent downtime, I checked git.vodka and saw the domain was available. so I bought it. from there it was mostly impulse.
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Agent Sandboxes: Giving AI Agents Their Own Little Linux Box (And Why You Should Care)
Sourced from: GKE Agent Sandbox docs, kubernetes-sigs/agent-sandbox So here is the thing. We are asking AI agents to do increasingly wild stuff. Write code. Browse the web. Run shell commands. Spin up browsers. Click around. Deploy websites. Use a computer like a human would. And for the most part, they are doing it. But there is a lurking problem that keeps platform engineers up at night. Where the hell is this code running?
I hacked every dumb screen in my house into one dashboard
This Kindle was supposed to be obsolete. The tiny LCD beside it was designed to do little more than rotate a slide show. Now both show live transit departures, weather, tasks, and anything else I can pull from an API—and I control them from the same self-hosted dashboard. No custom firmware on the LCD. No soldering. No cloud subscription.
Resisting the Eye of the Machine: A Reflection on AI and Data Ownership
AI both creates and consumes. For someone like me, who’s invested deeply in both the benefits and risks of these evolving systems, the duality is impossible to ignore. On one hand, AI supplements creativity, fast-tracks productivity, and offers insights unprecedented in human history. On the other, AI is a voracious consumer that treats every public thought, image, and pixel as a potential resource for improvement—its improvement, not ours.
Redefining Event-Driven Architecture on Google Cloud
Building event-driven systems with Cloud Run, Pub/Sub, and Eventarc is a powerful pattern, but the gap between "Hello World" tutorials and production stability is wide. These are the hard-won lessons from the trenches of Google Cloud serverless architecture. 1. Choosing Your Transport: Eventarc vs. Pub/Sub While Eventarc often uses Pub/Sub under the hood, the choice of which to interface with directly depends on your source and required control.
A CAPTCHA Bypass Technique: Audio Files
This is a draft write-up from 2019, documenting a CAPTCHA bypass technique I discovered back then. All code and images shown are examples for educational purposes. One day back in 2019, I got tired of repeatedly logging into my school's student system just to enroll in a full class. Then a lightbulb went off in my head: I could automate these attempts and refocus on my actual work. When it comes to automating website processes, I love using user scripts. 1.
The Uncomfortable Truth About AI-Assisted Development
Or: How We Learned to Stop Worrying and Start Debugging at 2am I need to tell you about a report that made me uncomfortable. Not because it revealed anything shocking, but because it quantified what I've been watching happen in real-time across engineering teams for the past year. CodeRabbit analyzed 470 pull requests — 320 co-authored by AI, 150 written by humans. The headline number: AI-generated code contains 1.7x more issues than human-written code. But that's not the uncomfortable part.
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