// hello, world. I'm
Engineer / Product Design / Business
An engineer who enjoys technology,
product design, and business.
Japan / JST · Open source & personal projects
I want to build things and test my ideas
We live in a world where we can build what we imagine, and someone may need it. If I can see a problem technology could solve—or one that may emerge in the future—I want to try building something for it.
I want to see for myself how the ideas and theories in my head affect the world.
// a few things about me
I want to build what comes to mind
I took leave from university and abandoned my attempt to travel around Japan by moped. I switched to hitchhiking and felt my own powerlessness as I relied on other people's kindness. After leaving university, I used my English in an import business. I became an engineer so I could build services myself.
Image conversion, text compression and search, code generation and analysis, and more. Turning my interests into something real with AI. Building, trying, and testing my ideas.
I want to think about products and business from the customer's perspective and contribute to the happiness of the people involved.
Things I've built,
ready for you to try
Giving shape to problems I see today and ones that may arise in the future.
Someone may need them, so I want to make them available for everyone to try.
IMAGE PROCESSING
A Node.js image-processing alternative, inspired by using sharp at work.
TEXT / SOURCE EVIDENCE
Recovering lost LLM context with compressed text and verifiable retrieval.
API TOOLING
Filter anomalies before the backend, inspired by WAF and Nginx work. Generate Worker code from OpenAPI.
CODE EXPLORATION
A map for understanding AI-modified code and tracing relationships and evidence.
I18N TOOLING
For faster i18n CI: Rust key extraction and diagnostics.
SAAS EXTENSIONS
Add tenant-specific features to SaaS, with shared controls for permissions, approvals, and auditing.
API and database design, development, and operations. Strong in API design and performance optimisation.
How ideas and theories affect the world
I want to explore that through technology, products, and business
Ideas and everyday life, on note.
If you're curious about how I think, I'd be glad if you read them.
I believe technology can help reduce some forms of inequality.
I want to make things available for everyone to try, through open source.
Imagination → Creation
I want to understand products, their business direction, and their future more clearly from the customer's perspective.
I want to see for myself how the ideas and theories in my head affect the world.
I want to build what comes to mind and publish it as open source, because someone may need it.
I want to consider the future of products and businesses, and the happiness of the people involved.
Work, open source, products—anything along those lines.
For work requests or consultations, please use the Google Form.
Find me on X, note, and GitHub.
Explore how the things I've built work.
Try your own images, text, or graph.json, too.
Add tenant-specific features to SaaS, with shared controls for permissions, approvals, and auditing.
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Extract translation keys from JavaScript and TypeScript.
Try the Rust engine behind this bilingual site, right on your device.
A single-file Wasm demo of the Rust/SWC extractor from i18next-turbo 0.5.3, pinned at commit 9f53e6a. Supports t, i18n.t, Trans, and selectors. Watch mode, cross-file references, locale synchronisation, and Node plugins are outside this demo. Unresolved keys remain in diagnostics. Workers stop after at most 15 seconds.
Comparison uses official i18next-cli 1.75.3 extraction code with SWC Wasm 1.16.18 and Turbo Wasm. CLI Wasm (~18 MB) loads only for comparison. Both use en/ja, t, i18n.t and Trans; comment extraction is disabled and unspecified namespaces match as translation. Timings exclude CLI startup, file I/O and synchronisation. No diagnostics does not guarantee full coverage.
Explore image size, quality, and processing time.
Compare lazy-image and other Wasm libraries using the same image.
Search from quality 45 to your chosen upper bound. Strict mode returns an error if the target is missed, without producing output.
Re-encode locally with metadata retention disabled. Images are not sent to external services.
Encode the same pixels at different quality levels. Inspect processing time and estimated pixel buffer size.
Pixel limits do not guarantee a total memory limit. This demo uses Wasm version 1.4.3.Node.js sanitisation and verified image-set generationare separate APIs.
Measurements run one Worker at a time, without previews or retained prior outputs. Initialisation, conversion, and output validation are recorded separately, including the first run and repeats after one warm-up. Display-only reruns and RGB PSNR happen afterwards and are excluded from timing. The reference is jSquash decoding plus Lanczos3 at the same dimensions. PSNR measures white-background RGB error, not perceived or equal quality. Execution order, cache, device load, and small sample sizes still affect the results.
Each Node/Wasm trial runs in its own process and records the OS peak RSS. This measures the whole process, including initialisation, input, and Node—not this browser or Cloudflare Workers. GPU memory and quality analysis after RSS collection are excluded.
I wanted to trace conversation context and its evidence.
Enter an article or other text here to try compression, search, and restoration.
A browser adapter for QZT v0.1/core. It uses Zstd Wasm for real compression and searches or restores the same compressed data. Search restores and scans all chunks; range restoration processes only the required chunks. QZI indexes, dictionaries, and imported .qzt files are unsupported. The format can be verified and exported with the official CLI. Input is held only in the loaded page's memory; each Worker stops after at most 15 seconds.
What policy candidates and Worker code does OpenAPI produce?
Change the input and inspect the diagnostics and generated content.
A browser adapter using the official OpenAPI analysis and policy candidate generator, plus profile Workers generated by the official compiler. Generated code applies global request settings. Authentication mapping, secrets, and route-level controls are not generated automatically. Unsupported items remain in diagnostics; code is neither executed nor deployed. Uses pinned public main commit 27211fa9 (2.0.0-rc.0).
Explore code structure and dependencies alongside their evidence.
Open the sample graph or your own graph.json to investigate.
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Supported relationships: contains / imports / injects / calls / exposes / depends_on. reads / writes are reserved by the official v0.1 contract and unsupported by the current validator.
Graphs and input files stay on your device. Imported graph paths are displayed only; source files are not fetched automatically. Expand methods from a selected class. Analyse new source code with the local CLI, then load the updated graph.json.
❯ :q!
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