Hideki Obote

Problem

macOS users struggle to identify current input method at a glance, causing frequent typing errors when switching between Japanese and English.

Solution

Built a menu bar app displaying IME status with visual clock indicator.

Results

Problem

Windows users needed the same IME visibility solution available on macOS.

Solution

Rebuilt the concept in C#/.NET 8 with Windows-native UI, demonstrating true cross-platform capability.

Results

Problem

Users of IMEIndicatorClock wanted to preview and customize settings before downloading, and share their configurations with others.

Solution

Built a full-stack web app with React frontend, Express API backend, and Supabase (PostgreSQL) for data persistence. Features real-time clock preview, preset management, and GitHub OAuth authentication.

Results

Problem

Developers and project maintainers need a quick way to visualize download statistics across all their GitHub Releases.

Solution

Built a single-page app that fetches and aggregates download data from GitHub REST API v3, using parallel async operations (Promise.all) with rate limit monitoring and responsive UI.

Results

Problem

Opening multiple project folders means juggling separate Finder/Explorer windows, slowing down context switching.

Solution

Desktop utility that opens folder groups as tabs in a single window, with named presets, searchable history, and multi-tier platform fallback architecture.

Results

Problem

The Python version uses System Events keystroke simulation for Finder tabs, requiring accessibility permission and conflicting with user input.

Solution

Rebuilt in SwiftUI with AX API + AppleScript hybrid — AX API presses Finder's "New Tab" button programmatically, no keyboard simulation needed.

Results

Problem

The Python version requires a Python runtime and uses SendInput keystroke simulation, which is unreliable and conflicts with user input during tab operations.

Solution

Rebuilt in pure C++17 with Win32 API — no external frameworks, single .exe. Uses UI Automation COM API to directly control Explorer tabs without global keystroke simulation.

Results

Problem

The IME Simulator needed a robust REST API backend to manage preset CRUD operations, likes, sharing, and pagination.

Solution

Built a Play Framework 3.0 REST API with Java 21 and Ebean ORM, connecting to Supabase PostgreSQL. Clean controller/model separation with full CRUD, share codes, and popularity ranking.

Results

Problem

Wanted to demonstrate the same API requirements solved with a completely different paradigm — functional programming with reactive streaming.

Solution

Rebuilt the API in Scala with Slick FRM for type-safe queries, Option/Either for functional error handling, and Pekko Streams for Server-Sent Events (SSE) reactive data delivery.

Results