01Studio — Live
KASHITE
Track who borrowed what. Get it back.
A dead-simple lending tracker for everyday life.
Next.js · Supabase · StripeOpen
Vol. I · Issue 012026
the kyren collection
MASATONAUT
A ONE-PERSON STUDIO
Masato Ito — AI engineer and indie maker, building Kyren from Tokyo. Heading to USC for an MS in Computer Science, Fall 2026.
01 — Portrait
A life in cities
Tokyo. Budapest. Sydney. Los Angeles next. Engineering, then research, then product.
02 — The Work
Focused tools
KASHITE, YOMU, Phrasely, SABAKU — four small SaaS tools for everyday life, shipped under Kyren.
03 — Manifesto
Built slowly
No investor decks. No feature bloat. Just tools that solve real problems, shipped when they're ready.
01 — Portrait
Masato Ito
伊 藤 柾 人
AI engineer, indie maker, and the mind behind Kyren. Co-authored a paper at ACL 2025 on AMR Parsing with reinforcement learning. Shipping small, focused tools while heading to USC for MSCS, Fall 2026.
BSc Computer Science from ELTE Budapest — Stipendium Hungaricum scholar, graduated with Excellent. Former engineer at Ericsson (Budapest), Cybozu (Tokyo), and SZTAKI national lab.
Lived in Tokyo, Budapest, and Sydney. Twenty-four countries, fifty-six cities. PADI Master Scuba Diver and Rescue Diver — sixty logged dives across the Great Barrier Reef, shipwrecks, and once alongside a whale shark.
02 — The Work
The Kyren Collection
02Studio — Live
YOMU
AI reading assistant.
Upload a book, ask questions, get insights powered by AI.
Next.js · Supabase · Claude APIOpen
03Studio — Live
Phrasely
Write better English.
Context-aware writing suggestions. Learn why they work.
Next.js · Supabase · Claude APIOpen
04Studio — Building
SABAKU
ATC-inspired task management.
Visual, spatial, decisive. Task strips like air traffic control.
Next.js · Supabase · DnD Kit
03 — The Atelier
Tools of the trade
AI / ML
Claude APIRAGNLPPyTorchPrompt Engineering
Frontend
TypeScriptNext.jsReactTailwind CSS
Backend
PythonNode.jsPostgreSQLSupabaseStripe
Infrastructure
VercelDockerGitHub Actions
04 — The Journey
A life in cities
Kyren — Studio
A one-person product studio from Tokyo. Four tools, three live.
USC, Los Angeles — MSc Computer Science
Viterbi School of Engineering. Focus: Machine Learning & AI.
Enhancing AMR Parsing with GRPO. Co-authored at XLLM workshop.
AI / ML Engineer — Freelance, Tokyo
RAG pipelines, LLM integration, AI-OCR, multimodal systems for enterprise.
ML Researcher — SZTAKI, Budapest
Hungary's national computer science lab. NLP research and dataset work.
Software Engineer — Ericsson, Budapest
Data pipelines with Python, Kubernetes, Helm across three continents.
Teaching Assistant — ELTE, Budapest
Functional Programming for undergraduate CS students.
ELTE Budapest — BSc Computer Science
Full Stipendium Hungaricum scholarship. Graduated with Excellent.
Cybozu — Tokyo
Product Support → Data Engineer. GCP data infra and BI dashboards.
Australia — Working Holiday
Strawberry fields and Sydney streets. A year off the beaten path.