江上 博士

江上 博士

Building app
#84655281 follower0 following
☀️ 2 day streak
>10,000All time
7 KP

About

I'm the founder of Cavemen.jp, a small software studio in Tokyo. My day job is serious — iOS/Android apps, AWS infrastructure, enterprise security. My side is not: I build oddly specific little apps that solve problems only I seem to have. Kaikoku started when I found a notebook I'd filled in junior high with an entire homemade "magic system." Instead of cringing, I built it — a chuuni antique pocket watch that also happens to be a fully functional alarm and clock. I care about apps that have a soul, not just a feature list. Happy to talk iOS, indie dev, or why a pocket watch needs twelve zodiac spells. 🕰️

Badges

Tastemaker
Tastemaker
Gone streaking
Gone streaking

Maker History

Forums

•

9h ago

Kaikoku — Thou Shalt Set the Hour Free - A chuuni pocket-watch alarm from a real childhood notebook

An antique pocket watch that hangs from a physics-driven chain in your palm. Wind the dial by night to cast zodiac arcana; the sun seals your magic by day. Beneath the fantasy: real alarms, timers, a chronograph, Apple Watch sync, widgets & StandBy.
•

1d ago

Kaikoku — a chuuni pocket-watch alarm I built from my junior-high notebook

I'm an indie developer from Japan, and I just launched Kaikoku.

The short version: I found a notebook I wrote in junior high full of an entire "magic system" I invented (twelve zodiac spells, solar arts, seal-curses). Pure chuuni, that fantasy-prone teenage phase. Instead of cringing, I decided to actually build it.

Kaikoku is an antique pocket watch that lives in your palm. The chain swings on real physics. Snap the hunter lid shut and magic charges; open it and the day unseals. By night you wind the dial to cast one of twelve arcana; by day the sun answers with solar arts. Every hour it checks its keeper via Face ID.

Underneath all that staging, it's a genuinely functional clock app: alarms with six bells, a timer, a chronograph with Live Activities, an Apple Watch companion, widgets, and StandBy. The fantasy is the skin; the timekeeping is real.

View more