Independent software product & engineering studio
Ideas into durable systems.
Build. Verify. Operate.
We design and build software for real problems — from products and operational tools to applied AI and experimental systems.
Capabilities overview
What we can build
Local-first Products
Browser extensions and desktop tools with clear, testable on-device data boundaries. User data stays on the machine unless the user chooses otherwise.
Review Scout · Volume Booster
Read-only Systems Tooling
Deterministic forensic tools that trace evidence to file and byte offsets without modifying the stores under investigation.
MQ Watcher
Local AI & Research Runtimes
High-throughput inference recipes on consumer GPUs and continuity-gated generation pipelines where evidence precedes canon.
Qwen 5090 Recipe · Longform Engine
Selected work
What we've built
01Review Scout
ReleasedA Chrome extension for saving Amazon reviews, comparing products, and returning to the original review behind each result. Review data stays in your browser.
2026
02Abyss Survivor
ReleasedAn Android space survival game. Dodge enemy ships, upgrade weapons during each run, and build your fleet between missions. Available on Google Play.
2026
03Volume Booster
PrototypeA Chrome extension prototype for adjusting volume and playback speed on supported audio and video in the current tab. It is being tested and is not available in a store yet.
2025
Engineering method
How we turn a problem into a system that works in practice
Constraints & Architecture
We define operational boundaries before writing code. Architecture decisions (ADRs) are recorded with their trade-offs.
Evidence-backed Outcomes
Every claim carries its measurement conditions. We test in real browsers and device viewports with hash-verified fixtures.
Observability & Runbooks
Launch is day one, not the end. We deliver explicit runbooks, rollback plans, and interpretative boundaries for every system.
Active explorations
Testing ideas before they become products
Volume Booster
A Chrome extension prototype for adjusting volume and playback speed on supported audio and video in the current tab. It is being tested and is not available in a store yet.
Qwen3.8-27B · RTX 5090 Runtime Recipe
Which local runtime works best for Qwen3.8-27B on one RTX 5090? We compare inference speed and coding-task behaviour, then publish the settings and measurement conditions.
Studio identity
We build games and software, and explore what AI can do.
GYUFORGE is a South Korean software company developing mobile games, software, and SaaS products. Registered as a business in September 2026, we build products for everyday life and work, conduct AI research, and contribute to open source.
Next step
Working on a real problem?
Tell us about your project, what you need, and any constraints. We’ll review the details and discuss the next steps.