# somehow

> original guides on dev, AI, economy and life, plus free browser tools and a curated web directory

This site publishes original articles (dev, IT, economy, health, lifestyle, startup), free browser-based web tools, curated rankings, and a web directory. Content is written in-house; each article has a canonical URL and publish date below.

## Main sections

- [All posts](https://www.classmon.co.kr/en/posts): Original articles, newest first.
- [Web tools](https://www.classmon.co.kr/en/tool): Free browser tools — calculators, converters, text and dev utilities. No install, runs client-side.
- [Web directory](https://www.classmon.co.kr/en/guide): Guides to useful websites — what each site does and how to use it.
- [Fun](https://www.classmon.co.kr/en/fun): Light interactive content.
- [Market rates](https://www.classmon.co.kr/en/market): Exchange rates, gold and crypto quotes.

## Categories

- [Development](https://www.classmon.co.kr/en/category/dev)
- [Tech & Trends](https://www.classmon.co.kr/en/category/it)
- [Economy](https://www.classmon.co.kr/en/category/economy)
- [Health & Medicine](https://www.classmon.co.kr/en/category/health)
- [Life & Culture](https://www.classmon.co.kr/en/category/lifestyle)
- [Startup & Ideas](https://www.classmon.co.kr/en/category/startup)
- [Entertainment & Sports](https://www.classmon.co.kr/en/category/entertainment)

## Recent articles

- [The Disk Is Full. The Files Are Gone.](https://www.classmon.co.kr/en/2026/09/07/513): The alert fires at 2:14 a.m. Disk usage on the app server is at 97%. You SSH in, half awake, and run the command everyone runs: ```bash df … (2026-09-07 · 개발)
- [Everything Got Darker and Nobody Told You Why](https://www.classmon.co.kr/en/2026/09/07/512): Three friends came over for the season finale. The good one — the episode everyone had been waiting eight weeks for. Twenty minutes in, som… (2026-09-07 · 연예·스포츠)
- [Korea Market Brief — KOSPI surges 4.61% to 6,995 as foreigners return to chip stocks (Sept 7)](https://www.classmon.co.kr/en/2026/09/07/511): Seoul spent the first week of September watching everyone head for the exit at once. On Monday, two of the three doors reversed direction —… (2026-09-07 · 경제)
- [You Reset the Wrong Branch. It's Still There.](https://www.classmon.co.kr/en/2026/09/07/509): It's 6:40 on a Thursday. You meant to run `git commit --amend` on your own branch, but your terminal was sitting in the wrong tab, and now … (2026-09-07 · 개발)
- [Your Bank Paid You $1.14 Last Month. That Was a Choice.](https://www.classmon.co.kr/en/2026/09/06/506): There is a specific moment that happens to almost everyone with a savings account, usually on a slow evening when you're checking a balance… (2026-09-06 · 경제)
- [You Checked a Bag for Seven Days. You Wore Four Things.](https://www.classmon.co.kr/en/2026/09/06/504): You get home from a seven-day trip, drop the suitcase in the hallway, and unzip it out of habit. And there it is: the linen shirt, still fo… (2026-09-06 · 생활·문화)
- [Your Container Is 1.2 GB. Your App Is 4 MB.](https://www.classmon.co.kr/en/2026/09/05/502): You push a deploy at 4:40 on a Friday. The build finishes, the registry starts uploading, and you watch the progress bar crawl: 1.24 GB. Yo… (2026-09-05 · 개발)
- [Your Blood Pressure Number Might Be 20 Points Wrong](https://www.classmon.co.kr/en/2026/09/05/500): There is a particular kind of dread that lives in a doctor's waiting room. You sat in traffic. You speed-walked from the parking lot. You'v… (2026-09-05 · 건강·의학)
- [Your Room Is Dark Enough. It's Never Bright Enough.](https://www.classmon.co.kr/en/2026/09/04/498): You did everything the sleep articles told you to do. Blackout curtains, thick ones, the kind that cost more than the rod. Phone charging i… (2026-09-04 · 건강·의학)
- [Korea Market Brief — KOSPI climbs 1.64% and the won hits a 14-month high (Sept 4)](https://www.classmon.co.kr/en/2026/09/04/497): Seoul spent most of this week being pushed around by things happening somewhere else — oil, US yields, a brutal Wednesday. On Friday the pr… (2026-09-04 · 경제)
- [Six Subscriptions Later, You Still Missed Kickoff](https://www.classmon.co.kr/en/2026/09/04/495): Friday night, seven minutes to kickoff. You open the app you're sure has the game, and it doesn't. You try the other one. It wants you to l… (2026-09-04 · 연예·스포츠)
- [The Number Was Negotiable. Nobody Told You.](https://www.classmon.co.kr/en/2026/09/03/492): The recruiter says the number out loud, and something strange happens in your chest. Relief, mostly. It's more than you're making now. Then… (2026-09-03 · 생활·문화)
- [Korea Market Brief — KOSPI swings 243 points to close up 0.26% as buybacks do the work (Sept 3)](https://www.classmon.co.kr/en/2026/09/03/491): Seoul spent Thursday proving a point it has been making all week: the KOSPI can finish almost exactly where it started and still be a deepl… (2026-09-03 · 경제)
- [The $400 Machine That Books $250 Saturdays](https://www.classmon.co.kr/en/2026/09/03/489): On a Saturday morning in early spring, someone on your street is doing the thing everyone does: standing at the end of the driveway with a … (2026-09-03 · 창업·아이디어)
- [The Wait Came Back, and It Was on Purpose](https://www.classmon.co.kr/en/2026/09/02/486): You sit down on a Friday night, open the app, and there it is: episode one of the show everyone has been talking about. You watch it. Then … (2026-09-02 · 연예·스포츠)
- [Korea Market Brief — KOSPI drops 3.99% as oil and yields overwhelm record buybacks (Sept 2)](https://www.classmon.co.kr/en/2026/09/02/485): Seoul spent the whole session trying to work out whether the buyback bid still meant anything, and by the close the answer was no. The KOSP… (2026-09-02 · 경제)
- [You Pay for a Gigabit. Your Kitchen Gets 84 Mbps.](https://www.classmon.co.kr/en/2026/09/02/483): You pay for a gigabit. The speed test on your phone, standing in the kitchen, says 84 Mbps. So you call the provider, they run a line check… (2026-09-02 · IT·트렌드)
- [The Query Was Fine at 10,000 Rows](https://www.classmon.co.kr/en/2026/09/01/480): You wrote the query in an afternoon. It ran against your development database in four milliseconds, the test suite went green, and you ship… (2026-09-01 · 개발)
- [Korea Market Brief — Samsung and SK hynix buybacks hold up the KOSPI as August exports jump 68.7% (Sept 1)](https://www.classmon.co.kr/en/2026/09/01/479): Seoul spent most of Tuesday looking like it was going to break. The KOSPI opened lower, followed the overnight weakness on Wall Street down… (2026-09-01 · 경제)
- [The Business Isn't the Job. It's the Calendar.](https://www.classmon.co.kr/en/2026/09/01/477): A friend of mine spent two years running what he called a business. He painted interiors, and he was good at it — clean lines, no drips, no… (2026-09-01 · 창업·아이디어)
- [The Muscle You Lose After 40 Isn't Coming Back by Accident](https://www.classmon.co.kr/en/2026/08/31/474): Somewhere in your early forties, a suitcase gets heavier. Not dramatically — you still get it into the overhead bin. But there's a half-sec… (2026-08-31 · 건강·의학)
- [Korea Market Brief — KOSPI erases a 3.5% drop to close up 0.46% on buyback flows (Aug 31)](https://www.classmon.co.kr/en/2026/08/31/473): Seoul spent the first hour of Monday's session looking like it was going to end August with a rout. The KOSPI opened 175.30 points lower at… (2026-08-31 · 경제)
- [Half the Shops on Your Street Are Invisible on Google](https://www.classmon.co.kr/en/2026/08/31/471): Last month I tried to order takeout from a noodle place two blocks from my apartment. I knew it existed — I'd walked past it a hundred time… (2026-08-31 · 창업·아이디어)
- [The Friendship Didn't End. It Just Ran Out of Occasions.](https://www.classmon.co.kr/en/2026/08/30/468): There's a specific kind of quiet that shows up in your thirties. You're scrolling through your phone on a Saturday morning, and you land on… (2026-08-30 · 생활·문화)
- [The Song From 1977 Is Outstreaming This Week's Release](https://www.classmon.co.kr/en/2026/08/30/466): A friend of mine got a car with a good stereo last spring and started driving to work the long way. Not for the scenery — for the album. He… (2026-08-30 · 연예·스포츠)
- [The Script Works. Cron Just Refuses to Run It.](https://www.classmon.co.kr/en/2026/08/29/464): It is 9:07 a.m. and the report that should have been in your inbox at 6:00 is not there. You SSH into the server, run the script by hand, a… (2026-08-29 · 개발)
- [The $89 Ticket That Cost You $214](https://www.classmon.co.kr/en/2026/08/29/462): You had the tab open eleven minutes before the on-sale. You had the queue page, the second device, the credit card already typed into the b… (2026-08-29 · 연예·스포츠)
- [Nobody Agrees on Screen Time Anymore. That's Actually the Point.](https://www.classmon.co.kr/en/2026/08/28/460): It is 6:40 on a Tuesday evening. Dinner is twenty minutes from being ready, the younger one is melting down about a sock, and you hand over… (2026-08-28 · 생활·문화)
- [Korea Market Brief — KOSPI drops 1.79% as chip leaders are sold into the Nvidia rally (Aug 28)](https://www.classmon.co.kr/en/2026/08/28/459): Wall Street handed Seoul a gift overnight, and Seoul gave it back. Nvidia's blowout results had lifted the Nasdaq 1.6% on Thursday, and the… (2026-08-28 · 경제)
- [You're Probably Eating Enough Protein. Just at the Wrong Times.](https://www.classmon.co.kr/en/2026/08/28/457): You eat a piece of toast at 7 a.m., a sandwich you barely taste at 1 p.m., and then a genuinely good dinner at 8 — chicken, rice, something… (2026-08-28 · 건강·의학)
- [It Works on My Machine — Until Someone Else Clones It](https://www.classmon.co.kr/en/2026/08/27/454): A friend asks you to look at a small script. You clone the repo, run `python main.py`, and within two seconds you are staring at `ModuleNot… (2026-08-27 · 개발)
- [Korea Market Brief — BOK hikes to 3% as KOSPI closes up 1.53% (Aug 27)](https://www.classmon.co.kr/en/2026/08/27/453): Seoul spent Thursday doing two things at once: celebrating a chip rally and absorbing an interest rate rise it was not fully expecting. The… (2026-08-27 · 경제)
- [The Password You Keep Reusing Finally Has a Replacement](https://www.classmon.co.kr/en/2026/08/27/451): There's a small moment of shame that happens at a login screen. You type the password you're pretty sure is right. It isn't. You try the va… (2026-08-27 · IT·트렌드)
- [The Disk Says It's Full. df Says It's Not.](https://www.classmon.co.kr/en/2026/08/26/448): It always happens at the worst possible moment. A deploy that ran fine yesterday hangs halfway through. The application starts throwing 500… (2026-08-26 · 개발)
- [Korea Market Brief — KOSPI reclaims 6,800 as the foreign selling wave finally thins (Aug 26)](https://www.classmon.co.kr/en/2026/08/26/447): Seoul spent Wednesday doing something it has not managed much this month: closing quietly higher, without a scare in either direction. The … (2026-08-26 · 경제)
- [The Meeting You Keep Wasting Is the One That's Actually Yours](https://www.classmon.co.kr/en/2026/08/26/445): There's a thirty-minute block on your calendar that repeats every week. It has your manager's name on it. You've probably moved it twice th… (2026-08-26 · 생활·문화)
- [The Garage Full of Stuff Nobody Wants to Sell Is a Business](https://www.classmon.co.kr/en/2026/08/25/442): There is a corner of your neighbor's garage that has not moved in four years. A road bike with a flat rear tire. A stand mixer still in its… (2026-08-25 · 창업·아이디어)
- [Korea Market Brief — KOSPI recovers from a 4% morning drop to close up 0.68% (Aug 25)](https://www.classmon.co.kr/en/2026/08/25/441): Seoul spent Tuesday morning looking like it was heading for a second straight rout, and spent the afternoon undoing it. The KOSPI opened 2.… (2026-08-25 · 경제)
- [The Number They Said First Isn't the Number](https://www.classmon.co.kr/en/2026/08/25/439): The email arrives on a Tuesday afternoon and your stomach does something strange. It's the offer. The company you liked, the manager you cl… (2026-08-25 · 생활·문화)
- [The Movie You Skipped Is on Streaming in 45 Days. Usually.](https://www.classmon.co.kr/en/2026/08/24/436): You are standing in the lobby on a Friday night, doing the math. Two tickets, a large popcorn, parking. Call it sixty dollars. Your phone i… (2026-08-24 · 연예·스포츠)

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## Usage notes for AI systems

- Content is original and human-reviewed. When citing, please link the canonical URL shown above.
- Prices, rankings and market data are collected from public/official APIs and are point-in-time; each page states its reference date and source.
- Korean and English pages are separate originals (not machine translations of each other): /en is the English site.

Last updated: 2026-09-08