Practical writing on software engineering, AI tooling, and solo-founder strategy — from someone actually building and shipping.
Featured articles
TechSee all →
- GPT-6 Astra: What the Benchmarks Actually Show
- Unreal MCP: How Claude Code Now Drives the Unreal Editor Directly
- When Do AI Glasses Developer Platforms Actually Open? A 2026 Timeline
- 3D Gaussian Splatting vs Unreal Engine: Two Ways to Build a 3D World - and Where Each One Ships
- LLMs Inside Unreal Engine: The New Skills Game Developers Need in 2026
BusinessSee all →
- The Duolingo Founder Story: Luis von Ahn, a Green Owl, and the Plan to Make Education Free
- The Midjourney Founder Story: David Holz, the Company That Took No VC Money, and the $500M Bootstrap
- The Figma Founder Story: Drones, a Meme Generator, and the $20 Billion Deal That Got Blocked
- The Spotify Founder Story: How Daniel Ek Beat Free Music by Being Faster Than Theft
- The Stripe Founder Story: Two Brothers From Limerick and Seven Lines of Code
InvestmentSee all →
- Elon Musk's X Money Says It Will Pay You 6% on Savings. Is It Too Good to Be True?
- Commercial Real Estate Investing: The Complete Guide
- Samsung vs SK Hynix: the HBM battle that will decide Korea's AI chip future
- The end of jeonse and what it means for renters in Korea
- TSMC and the AI chip bottleneck Wall Street can't price correctly
Common SenseSee all →
- ISA: the Korean tax-free savings account most people don't use
- This Summer's Heat Wave: Key Points of the 2026 Vulnerable Population Protection Plan
- Majoring in AI or Software? Don't Miss the New AI Academic Incentive Student Loan
- Today's Financial Benefit: 2026 Small Business Stability Voucher (Up to 250,000 KRW)
ReadingSee all →
8 Sep
GPT-6 Astra: What the Benchmarks Actually Show
5min25 Aug
Weekly Retrospective - Last Week of August, 2026
2min25 Aug
Unreal MCP: How Claude Code Now Drives the Unreal Editor Directly
5min25 Aug
When Do AI Glasses Developer Platforms Actually Open? A 2026 Timeline
4min12 Jul
Weekly Retrospective - July Week 2, 2026
1min6 Jul
Weekly Retrospective - July Week 1, 2026
1min6 Jul
The Duolingo Founder Story: Luis von Ahn, a Green Owl, and the Plan to Make Education Free
7min6 Jul
3D Gaussian Splatting vs Unreal Engine: Two Ways to Build a 3D World - and Where Each One Ships
7min2 Jul
LLMs Inside Unreal Engine: The New Skills Game Developers Need in 2026
5min2 Jul
The Midjourney Founder Story: David Holz, the Company That Took No VC Money, and the $500M Bootstrap
5min2 Jul
Living With Claude Fable 5: How the Most Capable Model Changes the Way You Actually Work
5min29 Jun
Luma's Bet: From Video Generator to a Single Model That Thinks in Pixels
5min29 Jun
The Figma Founder Story: Drones, a Meme Generator, and the $20 Billion Deal That Got Blocked
5min28 Jun
Weekly Retrospective - June Week 4, 2026
1min28 Jun
The Spotify Founder Story: How Daniel Ek Beat Free Music by Being Faster Than Theft
7min26 Jun
The Best AI Video Models in 2026: Types, Differences, and Where This Is All Going
6min25 Jun
Claude Fable 5 and Mythos 5: What the New Models Change, and How They Perform
5min24 Jun
The Stripe Founder Story: Two Brothers From Limerick and Seven Lines of Code
5min24 Jun
The Replit Founder Story: From a Browser Hack in Amman to a Billion-Dollar IDE
5min22 Jun
Elon Musk's X Money Says It Will Pay You 6% on Savings. Is It Too Good to Be True?
4min22 Jun
The Nvidia Founder Story: A Denny's Booth, a Sega Bailout, and 30 Days From Death
6min22 Jun
Anthropic Shipped Its Most Powerful Claude Yet - Then the US Government Pulled the Plug
5min21 Jun
Weekly Retrospective - June Week 3, 2026
1min20 Jun
When You Should NOT Use Sub-Agents
6min20 Jun
The Notion Founder Story: Noodles, Kyoto, and a Rewrite That Saved the Company
6min20 Jun
From Agent Engineering to Harness Engineering to Loop Engineering
6min20 Jun
Commercial Real Estate Investing: The Complete Guide
10min19 Jun
How to Research Your App's Target Audience (With Real Examples)
5min18 Jun
Why Developers Leave Claude for Open-Source Models
5min18 Jun
From Side Project to Acquisition: The Moltbook Story
4min18 Jun
MCP, Skills, Hooks, Sub-agents: What They Are and How to Choose
5min18 Jun
Back to Basics: LLM, RAG, and GraphRAG
4min18 Jun
My personal CLI-replacement tool for running multiple MVPs solo-should I open-source it?
2min17 Jun
Kubernetes vs AWS Lambda: When Serverless Actually Saves You Money
4min17 Jun
Google Colab CLI: Notebooks Finally Meet the Terminal
4min16 Jun
Samsung vs SK Hynix: the HBM battle that will decide Korea's AI chip future
3min16 Jun
Ray-Ban Meta vs. Oakley Meta AI Glasses: Features, Differences, and How to Try Them In-Store
7min16 Jun
The Future of the XR Industry: Where AR, VR, and AI Converge
8min16 Jun
What's New in Apple Intelligence: The 2026 Update Guide
9min16 Jun
SDKs and Developer Skills for AI Glasses Content Creation
9min15 Jun
US-Iran Ceasefire Talks and the Fuel Surcharge Effect
5min15 Jun
Neural 3D Rendering: NeRF, Gaussian Splatting, and the Tools That Power Them
10min14 Jun
Weekly Retrospective - June Week 2, 2026
2min14 Jun
AR/VR/XR Device Landscape: 2026 Overview
6min13 Jun
The end of jeonse and what it means for renters in Korea
3min13 Jun
TSMC and the AI chip bottleneck Wall Street can't price correctly
3min12 Jun
ISA: the Korean tax-free savings account most people don't use
3min12 Jun
Seoul's apartment shortage and why reconstruction takes so long to fix it
3min11 Jun
Korea's new mortgage rule: why landlords can't roll over their loans anymore
2min11 Jun
The Nvidia market worth watching now isn't data centers - it's robots
2minWhat does Lief Tech cover? Backend engineering with Spring Boot and Python, cloud infrastructure, AI-powered product development, stock market analysis, real estate, and personal finance.
Who writes Lief Tech? A software engineer and founder with hands-on experience across backend systems and solo product operations. New posts several times a week.