01Unreleased
Revealed at launch
個人開発、世界へ。
Independent maker · Japan
Your machine
is enough.
An independent maker in Japan, building small, sharp tools for desktop and browser — designed local-first, with no accounts to create and none of your data on our servers. We don't run any.
Local-first No accounts Crafted in Japan
Scroll
WHAT THIS STUDIO STANDS FOR
LOCAL-FIRSTNO ACCOUNTSOFFLINE BY DESIGNWINDOWSmacOSCHROMEONE MAKEREN · JA · ZHBUILT IN PUBLIC
Principles
Three rules, no exceptions.
Small tools, made with care, that respect the person — and the machine — using them.
01
Local-first, always
What can run on your machine, does. No accounts to create, no data of yours parked on our servers, no quiet dependence on someone else's uptime. Privacy isn't a setting here — it's the architecture.
02
Offline by design
Speech recognition, window-following engines, native UI — the heavy lifting happens on-device. No metered API bills ticking in the background, nothing that dies the day a server sunsets.
03
Fast and light
Native where it matters, lean everywhere else. A tool should start in a blink, sip memory, and get out of your way — you should forget it's running until the moment you need it.
Products
In the workshop.
Several tools are in active development. Nothing here is on sale yet — each one is revealed on this page the day it actually ships, one at a time, never before.
02Unreleased
Revealed at launch
03Unreleased
Revealed at launch
04Unreleased
Revealed at launch
Names, details and prices stay sealed until each tool actually ships. It's deliberate — not a placeholder.
By the numbers
A small studio, measured honestly.
0
Tools in active development
0
Platforms — Windows · macOS · Chrome
0
Accounts you need to create
0
Inbox for every product
No invented download counts. No imaginary team. These numbers are the real ones.
About
One maker, end to end.
Independent maker · Japan
Design → code → signing → support
one pair of hands
This studio is one person: an independent maker in Japan who designs, builds, signs, notarizes and supports every tool on this page. There is no team to hide behind — which is exactly why the tools stay small, sharp and honest.
By day, a licensed pharmacist — work where a misread line is not an option. That habit of precision carries into everything here: voice commands engineered not to misfire, release pipelines signed and notarized end to end, and claims on this page you can actually verify.
If you use the tools, want to collaborate, or are simply curious how one person ships all of this — the inbox below reaches a human.
Capability — what the tools are made of
Native macOS
Swift · Accessibility API · a hand-built window-following engine that tracks other apps' windows in real time
Local speech
Python · faster-whisper on GPU · homophone-safe command grammars that don't misfire mid-dictation
Browser tooling
Chrome extensions (Manifest V3) · voice control layered onto major AI chat interfaces
Shipping
Code signing, notarization, packaging, licensing, support — the whole release pipeline, run by one person
Languages
Product UIs — and this very page — ship in English, Japanese and Chinese
FAQ
Good questions.
Who makes these tools?
One independent maker in Japan — design, code, signing and support included. Small on purpose: it keeps every tool sharp and every promise on this page checkable.
Why local-first?
Because trust is the product. Your work shouldn't be hostage to someone else's server. What can run on your machine does — there are no accounts, and no servers of ours holding your data.
Is anything sent to the cloud?
Every product will spell out exactly what runs where, in plain words, on its own page at launch. The rule is constant: the heavy lifting — speech recognition, window engines — runs on your device, and there are no servers of mine holding your data.
What will they cost?
Nothing is on sale yet, and pricing isn't set. Each tool's price is decided when it ships and shown plainly on its own page — never a moment before.
How do I get support?
One address for everything — the email below. Say which product and what happened, and you'll hear back from the person who built it. As the lineup grows, product-specific channels may follow.
Contact
One inbox. A human reads it.
Support, questions, collaboration — every message lands in the same place, and is read by the person who built the tools.
✉ hello@r.exampleEvery product, one address Replies come from the maker