Products (this site)

My portfolio.

  • Parcel, Pug, SCSS, Netlify


Chrome extension for quick tab switching and bookmark access.

  • TypeScript, React, Redux, Webpack
  • GitHub

Period Recorder

Battle recorder for smartphone game “Last Period”.

  • Ruby, Ruby on Rails, MySQL, Chef, CentOS
  • Google App Engine, Cloud Run, Cloud Storage

Last Period Tools

Tools for smartphone game “Last Period”.

  • TypeScript, React


macOS app that uses your Mac's camera to monitor when you're slouching.


macOS app to quickly change the brightness of your Mac.

Riverflow (obsolete)

macOS app that enables you to control your Mac with two-finger gestures.

PopHub (obsolete)

GitHub feed reader that pops up from your Mac's menu bar.