ericwoo_kr 
The Problem: LLMs Are Terrible at Surgical File Edits The first time an LLM helpfully rewrote my entire nginx.conf because I asked it to add a single proxy_pass directive, I didn’t notice until the site started returning 502s. The model had quietly dropped two map blocks, reordered the server contexts, and normalized all my tab … Read more
The Attack Surface Nobody Audited Until Now Most people treating their AI coding assistant as a smarter autocomplete have not thought carefully about what it can actually do on their machine. Cursor, Gemini CLI, and similar agentic tools operate with filesystem read access, shell execution, and in many configurations the ability to stage and push … Read more
What This Article Actually Covers (And What It Doesn’t) ## What This Article Actually Covers (And What It Doesn’t) go // Before: scattered fields, 72 bytes, GC traces every pointer type Event struct { Timestamp time.Time // 24 bytes UserID *string // 8 bytes (pointer — GC has to chase this) Score float64 // 8 … Read more
Why Anyone Is Still Writing DOS Code in 2026 (And Why It’s a Legitimate Technical Exercise) ## Why Anyone Is Still Writing DOS Code in 2026 (And Why It’s a Legitimate Technical Exercise) DOS is not dead. That sentence reads like a joke until you’ve stared at a SCADA terminal running DOS 6.22 that controls … Read more
The Bug That Sent Me Down This Rabbit Hole The Loop That Crashed in Production and Left Zero Evidence in CI The vector was empty. That’s it. That’s the whole bug. I had a loop that started at container.size() – 1 and counted down, and on an empty vector, size() returns 0 — which is … Read more
The Bug Backlog That Finally Broke Me The number that broke me was 212. That’s how many open issues we had in Linear when I finally stopped pretending we had a “manageable backlog.” I spent an entire Monday just reading through old bug reports, and by noon I realized I couldn’t even remember what half … Read more
Why I Finally Sat Down and Learned This Properly I was pair programming with a senior dev on my team — she was cleaning up a React component while I watched. In about 30 seconds she had renamed a variable across the file, moved a block of code three places down, deleted four lines of … Read more
Why I Ended Up Building This Instead of Using Something Off the Shelf The requirement sounded simple: let users drag vertices around on a 3D mesh, assign basic materials, and export the result as GLTF. My first instinct was to reach for something pre-built. That instinct cost me about two weeks before I gave up … Read more
The Real Problem: You Have an Idea But No Audience to Test It On The validation advice that gets shared most is written by people who already had an audience when they launched. “Post on Twitter, build in public, share your landing page” — great advice if you have 10K followers who trust your judgment. … Read more
The Setup That Made Me Actually Compare These Properly The thing that actually pushed me to take Kubernetes seriously wasn’t hype — it was a 2am deploy that silently murdered our Python worker and nobody caught it until a client emailed us at 8am asking why their background jobs hadn’t processed overnight. Six hours of … Read more