ericwoo_kr My LinkedIn Feed Became Unusable — So I Did Something About It The thing that finally broke me wasn’t a single post — it was opening LinkedIn on a Tuesday morning and scrolling for three full minutes without seeing a single piece of content related to my actual industry. What I got instead: a founder … Read more
Why I Ended Up in Browser-Based 3D Land The breaking point was a 47-minute Slack thread trying to explain to a motion designer how to orbit the camera in Blender. She wasn’t incompetent — she was a genuinely skilled 2D animator who had zero reason to learn a 3D viewport navigation paradigm just to swap … Read more
The Problem: Your QR Code Looks Like It Belongs on a Shipping Label The thing that caught me off guard wasn’t that ugly QR codes performed worse — it was how much worse. I had two QR codes going to the same URL on the same flyer, printed side by side in an A/B batch. … Read more
The Moment I Realized I Had a Problem I was doing a technical phone screen — no IDE, just a shared Google Doc — and I needed to write a reduce() call to group an array of objects by a key. I’ve written that exact pattern probably 300 times across different codebases. My fingers went … Read more
The Problem: Full Table Scans on a 10TB Delta Lake The query that broke me was deceptively simple: give me all delivery events within a bounding box of roughly 50km², filtered by timestamp and vehicle type, from a Delta table sitting at about 10TB. Spark read the entire thing. Every. Single. Time. Wall clock: 40 … Read more
The Problem: Your Game Loop Is a Callback Nightmare The sequence sounds simple when a designer describes it: “wait two seconds, then spawn the enemy wave, then trigger the cutscene.” The code that implements it is where your sanity goes to die. Here’s what that looks like in a typical game loop without coroutines: // … Read more
The Problem: Azure’s Pricing Page Is a Trap You type “cheapest Azure VM” into Google, click the first result, and land on the Azure pricing calculator. Forty-seven dropdowns. Filters for region, OS, tier, reservation term, currency, and a category called “workload type” that doesn’t map to anything you actually run. Twenty minutes later you’ve closed … Read more
The Problem Nobody Talks About Until the Agent Drops a Production Table The thing that catches most teams off guard isn’t the agent hallucinating a table name or mangling a JOIN — it’s the agent writing a perfectly valid SQL statement that does exactly what it was asked to do, just at 10x the intended … Read more
Why I Built a Pokémon Game on Top of Kubernetes The thing that broke me was watching a junior dev stare at kubectl get pods -A output for 45 seconds, completely lost. Not because they weren’t smart — they just had no mental model for what a cluster is. Every dashboard I tried to hand … Read more
The Problem: Your CI Pipeline Takes 12 Minutes to Build a 2GB Image A 2GB image that takes 12 minutes to build on every push isn’t just annoying — it’s a compounding tax on your entire team. Every feature branch, every hotfix, every “just a one-liner” commit burns 12 minutes of CI time. Multiply that … Read more