Hi, I'm Ryoma

A real-time IoT device monitoring dashboard built as a demo for a MVNO SIM company interview. Displays 6 simulated SIM-equipped devices with live signal strength and battery gauges. Receives device events via Webhook, updates status in real time through Supabase Realtime, and runs AI anomaly detection on demand.

A dashboard that automatically collects AI industry news and summarizes each article using AI. Pulls from 5 RSS feeds and Hacker News, then scores each article by importance and tags it with trends. Supports both English and Japanese.

An internal Q&A tool for teams. Upload your company's PDF documents, ask questions in plain language, and get answers with source citations — powered by AI that only uses your own data.

A tool for content creators to improve their video hooks. Paste your opening line and get an instant score out of 100, a letter grade, and 3 specific tips to make it more engaging.

A job-hunting tool built because Ryoma doesn't trust generic job boards. Scrapes 450+ VC-backed startups from Global Brain and Y Combinator, finds live job pages, and uses AI to score each role against a personal profile — all within a $1 cost cap.

A production-grade offline-first PWA. Point your camera at groceries and AI auto-detects items instantly. Syncs in real time across all devices, works without WiFi and auto-syncs when back online. Supports multiple users with auth and Cloudinary image matching.

This portfolio site itself. Built with AI-assisted development, it includes a live chat feature where you can ask an AI about Ryoma's background, skills, and projects and get real answers.

A customer support dashboard where AI automatically reads incoming tickets and suggests how to handle them. It classifies the issue, rates the urgency, detects the customer's mood, and drafts a reply — all instantly.

A personal health tracker built for daily self-monitoring. Logs sleep timing, quality, fatigue, focus, exercise, meals, and supplements — then uses AI to detect patterns and dangerous trends from the past 30 days. Includes a Pro subscription tier via Stripe.