harukary
Japanese English

Products

Everything I make: apps for daily life and developer tools.

Daily life

A local-first diary app for revisiting the same date year by year.

Promotional image for 100 Year Diary Local, showing the app icon and same-date diary entries across years
  • Revisit the same date across years
  • No account required, entries stay on device
  • Export your diary as a Zip file
App Store Web
Live

A local-first app to keep your friends' profiles and interaction history like a profile notebook.

Header image of tomomemo
  • No login required, fully local storage
  • Profile notebook that still works with partial information
  • Lightweight interaction logs organized by date
App Store X
Live

An app for recording plants and animals you notice on walks, then revisiting them as your own field guide.

piko list view showing saved plants and animals in a personal field guide
  • Save plants and animals the moment you notice them
  • Revisit your observations through list, calendar, and map views
  • Turn everyday walks into a field guide that grows over time
App Store
Live

A web app where you learn natural daily expressions through diary corrections and chat.

Daylingo screenshot (Today: input, correction, and chat)
  • Learn from your own diary through corrections and chat
  • Build natural daily phrases and vocabulary in your target language
  • Review past diaries along the forgetting curve for steady retention
Web
Archived (2)
Archived

An app that turns photos of flyers and handouts into organized events and places on a calendar and map.

Header image of Leafy
  • Capture and finish with less manual input
  • AI-powered auto-organization into lists and folders
  • Review intuitively on calendar and map views
Landing X
Archived

A web demo that turns a single photo into creature encounters and a collectible field guide based on everyday objects.

WorldWisp screenshot showing the character collection view
  • Upload one photo to generate an encounter image and character profile
  • Treat repeated motifs as one species and revisit their history in the collection
  • Use scene context to make encounters feel natural inside the original photo
Demo Demo Video

Development

Beta

A VS Code extension for using Codex CLI, with session management and a chat UI.

Screenshot of Codex UI showing session and chat panels in VS Code
  • Connect to and launch app-server per workspace
  • Create, switch, and organize sessions
  • Track outputs including tool events
VS Code Marketplace GitHub
Archived (2)

A custom VS Code editor extension that lets you edit Markdown in an Obsidian-like live preview.

  • Edit only in Live Preview while saving plain Markdown
  • Tune theme with workspace CSS (.vscode/quench-theme.css)
  • Paste/drop image, save attachment, and insert relative path
VS Code Marketplace GitHub
Archived

An operational setup to build a personal Codex CLI and run it alongside the official one without conflicts.

  • Run in parallel with the npm-distributed version
  • Simplify install and updates with install.sh
  • Keep operational diffs explicit and manageable
GitHub Releases