The day KOSPI jumped 17%, my indicator flashed buy too
As KOSPI and KOSDAQ rebounded violently and SK hynix hit its upper limit, I reconsidered the meaning and limits of a signal I originally built for crypto.
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Models change while permissions remain, so today I thought about operational boundaries
AI transparency codes, team-level model policies, npm token restrictions, and agent secret scanning made me value replaceable, stoppable operations over another new feature.
A rhinoceros beetle has joined our family
We began raising a rhinoceros beetle: first came the supplies, then two delighted children, a startled wife, and Coco showing absolutely no interest.
What remains after launch, and the weight of maintenance
While imagining Haru Space after launch, I reflect on the burden left with a smaller team, the limits of handover, and how to make response faster without relying on sacrifice.
A 39°C heat forecast and AI labels made me think about the duty to warn early
Heat alerts, AI transparency rules, an uneven global outlook, and dementia guidance all reminded me that risk and uncertainty must be visible before people can choose.
Why a middle-aged man with too many ideas started Haru Space
I still feel short on design and technical skill, but years of broken records, doubt about the AI era, and a new ability to build led me to start Haru Space.
This morning's AI news made me think less about intelligence and more about verification
After reading about agents, isolated environments, code review, and a sharp market selloff, I kept coming back to the structure that divides work and verifies it.
Building Haru Space and recording the journey
Why I began building Haru Space as a place where trusted people can shape ideas together, and what I plan to record along the way.
A Working Developer Finally Starts an Investment Journal
I am restarting the investment notes and automated-trading experiments I kept postponing, using AI to help turn a long-standing interest into a practical routine.
Recording what I buy, eat, fish for, and discover
I am beginning a personal record of things I use, restaurants worth revisiting, fishing I rarely have time for, and places I want to remember.
Two kids and Coco—the beginning of our lively family record
I am beginning a record of raising two very different children, caring for fourteen-year-old Coco's health, and preserving our ordinary days together.
How to begin a small project with AI
A practical way to turn a vague idea into a small, testable outcome while keeping people responsible for the decisions.
How collaborative records help the next person
Move beyond an archive of outputs by preserving the reasons, lessons, and publishing decisions that can improve the next collaboration.
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