Field notes from the bureau — technology, design, and the craft of shipping software
DESIGN · 8 min read
New Flashcards Alarm users saw an empty word list and quietly left. I added a short AI-driven placement quiz after signup — adaptive difficulty, five questions, and five starter words chosen for their level.
Flashcards Alarm · Onboarding · AI · Product · UX
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LIFE · 18 min read
From ideation to deployment in days, not months. How autonomous AI agents are compressing every phase of the SDLC.
AI · MCP · Future of Work · Engineering
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DEV · 14 min read
At Linkcie, we let users launch production websites in under 10 minutes. Here's the architecture that made instant multi-tenancy possible.
Architecture · Multi-tenant · SaaS · PHP
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DEV · 14 min read
I've shipped products with both. Here's the decision framework I actually use, based on data relationships, query patterns, and team size.
PostgreSQL · Firestore · Database · Architecture
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DEV · 16 min read
At Fasient, we replaced manual content production workflows with Stable Diffusion and custom LoRA models. The results were dramatic.
AI · Stable Diffusion · LoRA · Automation
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DEV · 12 min read
Upload, resize, optimize, and serve — the full lifecycle of user-uploaded images in I Love Hwarang's campaign system.
AWS · S3 · Next.js · Image Processing
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DEV · 14 min read
Alarm scheduling on iOS and Android requires native code. Here's how I bridged Flutter to the platform layer without losing my mind.
Flutter · iOS · Android · Native
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DEV · 10 min read
For a fundraising platform, discoverability through search engines is a survival requirement. Here's how SSR makes that possible.
Next.js · SEO · SSR · Web
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DEV · 12 min read
How I integrated Eleven Labs' voice synthesis into Number Strike Baseball for dynamic commentary and opponent taunts.
Eleven Labs · AI · Voice · Game Dev
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LIFE · 16 min read
Building engineering orgs from zero, three times. The patterns that repeat, the mistakes I stopped making, and the ones I keep making.
Leadership · Startups · Engineering Management
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DEV · 14 min read
Why I built a custom SRS engine instead of using SM-2, and how offline-first design shaped every algorithmic decision.
Algorithms · Dart · Flutter · Education
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DEV · 12 min read
Payment processing for cultural heritage fundraising taught me that the hard part isn't Stripe — it's trust, receipts, and tax compliance.
Stripe · Next.js · Payments · PostgreSQL
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DEV · 14 min read
Why standard ELO formulas fail for casual mobile games, and how I adapted the algorithm for Number Strike Baseball's ranked play.
Game Dev · Algorithms · Firebase · Matchmaking
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DEV · 12 min read
How I turned a phone camera into a vocabulary extraction engine using Gemini's vision API and Cloud Functions.
AI · Gemini · Computer Vision · Flutter
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DEV · 16 min read
When I joined Decoy International, everything ran on paper. Five years later, every operation was automated. This is the technical story.
ERP · Digital Transformation · PHP · MySQL
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DEV · 18 min read
12 primary databases, 12 replicas, 100M+ rows per table, and gamers who notice 50ms of latency. Lessons from the trenches of game infrastructure.
MySQL · Infrastructure · Gaming · High Availability
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DEV · 14 min read
MCP lets AI agents use tools, read files, and interact with real systems. I've been building with it since day one — here's what most people miss.
MCP · AI · Claude · Developer Tools
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DEV · 20 min read
Flashcards Alarm was built 100% by Claude and Gemini — from architecture to App Store submission. Here's exactly how that worked.
AI · Claude · Gemini · MCP · Automation
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DESIGN · 10 min read
The psychology behind Flashcards Alarm's forced-study interaction — and why making your app slightly annoying is sometimes the right UX decision.
UX · Mobile · Psychology · Product Design
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DEV · 12 min read
After shipping three Flutter apps and evaluating React Native twice, here's my honest comparison — and why Flutter wins for solo developers.
Flutter · React Native · Mobile · Opinion
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DEV · 16 min read
How I built a competitive number guessing game with sub-second sync, ELO ranking, and a virtual economy — all on Firebase's free tier.
Flutter · Firebase · Real-time · Game Dev
Read full dispatch →THE JK JUNG TIMES · End of Special Report · All the code that's fit to ship.