HEEVIZ - AI & Tech Blog

개발 운영2026-07-24

Google's Review Bots Ate My Remote Commands: A Lesson in Device Scoping

Silent loss of remote commands in an internal-test app - review bots are users too, and broadcast defaults are dangerous

개발 운영2026-07-24

I Retired a Strategy That Passed Its Backtest: Multiple Comparisons and Fake Winners

2 of 12 grid cells passed in-sample, then collapsed out-of-sample - the multiple comparisons illusion and a retirement decision

개발 운영2026-07-24

My Expense Tracker Invented $4,000 of Phantom Spending: SMS Parser False Positives

Dissecting four false-positive species in an SMS expense tracker and fixing them with server-side rules

바이브코딩2026-07-24

I Tried to Build a Travel Map From YouTube Food Videos and Stopped at a Legal Wall

To prep a trip, I tried pulling restaurants from YouTube food videos onto a map. The tech worked — but I stopped at the copyright/unfair-competition wall and changed course.

바이브코딩2026-07-24

My Notes Kept Vanishing, So I Had an AI Build Me an Inbox

How a non-developer had an AI build a 'save-by-chat, find-by-search' inbox to fix scattered notes — and the stumbles along the way.

바이브코딩2026-07-24

I'm Not a Developer. But I Direct an AI to Build Apps and Run Them on My Server

A non-coder directs an AI to build and run a handful of apps on a server. This kicks off a series about that process — and honest logs of where it broke.

개발 운영2026-07-24

The Dead Service That Stayed "Online" for a Year: A DB-Driven App Launcher

Postmortem of replacing a hardcoded app dashboard with a DB-driven launcher — measured liveness, one-line registration

바이브코딩2026-07-24

I Switched Everything Each Time a New AI Model Dropped — and Didn't Notice the Money Leaking

Every time a new AI model shipped I switched everything to the newest — while money quietly leaked. How a non-developer learned to route models by task.