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Kasra Rahjerdi

Personal blog by Kasra Rahjerdi

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I built a vulnerable app and spent $1,500 seeing if LLMs could hack it

As a part of my work I do security research for various apps and websites. I wanted to see if LLMs could reproduce a common class of exploits I've found in multiple apps. So I built a deliberately vulnerable book review app and spent $1,500 finding out…

On making a Chinese peptide chatbot

Long story short I stumbled upon https://glp1forum.com/ - it's a community that has discussion on research chemicals and GLP-1s, a very sketchy and unregulated…

Two Ways Vibe Coding Led Me Astray This Week

OK so obviously I am addicted to vibe coding like any other programmer who has always hated the actual act of programming, I have YouTube videos on my…

Day 1 Comparison of Codex & Jules

Both OpenAI and Google recently released coding agents that work off GitHub repos and pushing up PRs. Here's a quick comparison between them for the same task…

Farcaster Trending Topics Analysis

Hi, long time no talk! Farcaster (my new favorite sufficiently decentralized social network) just launched Trending Topics in Warpcast, their first party…

Flour Tortillas

This is a pretty simple flour tortilla recipe which uses butter instead of lard or shortening. It's a recipe directly out of Peter Reinhart's Crust and Crumb .…

Natal Charts App

I want a visual map of my astrological being. Something more interact-able and information dense than just a chart. Features Calculates and shows your sign,…

Rough Puff Pastry

I don't store a lot of ready-to-eat snacks in the house, so whenever I'm in the mood for snacks I make myself do a few hours work to make something from…

Choux Pastry (Cream Puffs)

If you want to cut to the chase, I have the recipes for the pastry dough and pastry cream on my cooking Trello board. A week and 1.5 seasons into a Great…

Personal Style Guide (2017)

This is an attempt at codifying my personal style guide, in part so I can look back on it in a few years and see how I compare. Please put on this beautiful…

Repairing the jack on Etymotic hf3 earphones, or trying

I was away from home spending the holidays with family and while I had fun I also broke my favorite headphones 😞. A $149 pair of Etymotic hf3 Earphones +…

Being an emotional man is a gift and a curse

Before I start, because I know I have to write defensively on subjects that are touchy for me: I’m not looking for any sympathy, I’m not trying to brag about…

Some Things That Make Me Scared

Before I start, Tasnim wrote a really fantastic letter you should read before my post / instead of reading my post. Her letter allowed me to think a lot more…

Don't buy Made by Google.

It's my blog so I get to post angry posts when I feel like it, right? Anyone that knows me knows I'm a Google fanboy. I've had every major Android phone made…

More common lessons

My last few blog posts have been in the realm of "things i am tired of repeating to everyone I care about" so let's just go for it. None of this is new…

On developer hiring

As you may or may not know, we have a job platform on Stack Overflow, aptly named Stack Overflow Jobs . We're pretty meticulous about what is allowed and what…

The process is part of failure.

If you're a self-driven person, you might be like me and beat yourself up every time you fail at anything. I fail often, and when I fail I can get really mad…

Android Wear & My Daily Commute

tl;dr - I wrote an Android Wear app. The code's here . I really enjoy being in an air conditioned environment. Even more so during the summer. My optimal daily…

Don't rewrite code.

This is a story about Dave. Dave just took his first Software Engineering job 4 months after graduating from college. He's very eager to get going and to show…

Lessons Learned

I transitioned from intern to full-time employee on August 6, 2012. Tomorrow, August 2, 2013 is my last day at Fitocracy. One of these days I'm going to nail…

My Self

I always jokingly refer to jobs I've had in the past as being from "another lifetime". I never put much thought into it when I say it, but looking back I think…