01 / tapmi
tapmi
A production NFC identity product engineered by Reiwa Sakura Tech: physical cards and tags resolve over HTTPS to a private-by-tap profile. No app required for the recipient.
Live Explore tapmi →令和桜
Neo Tokyo Systems Human-Centered Technology for a More Connected Tomorrow.
Reiwa Sakura Nexus — real engineering for web, mobile, connected products, and the verified infrastructure that keeps them online.
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Five petals. One production system.
- Tapmi
- ShweTap
- LaBar
- Engineering
- Reiwa Sakura
01 / TAPMI
Physical
identity
becomes digital.
tapmi is a production NFC identity product from Reiwa Sakura Tech. A physical card or tag resolves over HTTPS to a private-by-tap profile — no app required for the recipient.
- Physical NFC card carries a resolver ID.
- A compatible device reads the chip or scans the printed QR.
- tapmi.link resolves the public identity over HTTPS.
- The visitor opens the associated profile and can save contact or follow configured destinations.
PHYSICAL IDENTITY.
Educational product simulation — this page does not use Web NFC or claim a live chip tap. Current phase: physical.
Products
Product universe
Tapmi, ShweTap, and LaBar — live systems, not decks.
02 / SHWETAP
SHWETAP
An interactive product with guest play and optional account-linked progression. Live at shwetap.com.
Live Explore SHWETAP →
03 / LABAR
LABAR
A production mobility platform: Ride, Airport, Delivery, Schedule, Business, Driver, and Safety. Live at labartaxi.com.
Live Explore LABAR →
SERVICES
Engineering capabilities
Outcomes we deliver — not filler service names.
Web Engineering
Production web apps that load fast, stay typed, and survive real traffic.
Mobile Engineering
Native and cross-platform clients with a clear release and store path.
Backend & APIs
HTTP APIs with auth, validation, rate limits, and structured errors.
Cloud & DevOps
Repeatable deploys, containers, and infrastructure that can be rebuilt from config.
AI & Automation
Bounded AI features with evaluation, not unbounded chat widgets.
Product Design
Information architecture and UI that operators and customers can actually use.
System Architecture
Written boundaries for data, identity, and failure before implementation starts.
Security Engineering
Threat-informed reviews, auth hardening, and public-safe disclosure.
Performance Engineering
Budgets for JS, images, and Core Web Vitals on the devices people use.
ENGINEERING
Principles we ship with
Security First
Least privilege, encrypted transport, scoped credentials, and reviewable change history before a system goes live.
Scalable Architecture
Boundaries that can grow: APIs, data, and clients stay replaceable without rewriting the product.
Performance
Measure LCP, INP, and payload. Prefer static delivery and small client bundles over decoration.
Maintainable Code
Typed contracts, explicit ownership, and changes small enough to review.
Observability
Logs, health checks, and audit trails for the paths that take production traffic.
Accessibility
WCAG 2.2 AA targets: keyboard, labels, contrast, and reduced motion.
Reliable Delivery
Scoped work, staging, handover, and a response target of one business day on new enquiries.
PROCESS
From Brief to Production
A clear path so you always know what happens next.
01
Discover
A focused call on goals, constraints, and what already exists. We say if we are not the right fit.
02
Scope
Written deliverables, milestones, assumptions, and price before a line of production code.
03
Build
Weekly visible progress — demos, reviews, and a single place to track decisions.
04
Handover
Source, docs, and a stabilization window. Support stays available when you need it.
PLATFORM
Tools we run in-house
The same Chat, Meet, and GitLab stack we operate for delivery.
COMPANY
The people behind the work
Engineers and builders shipping production software.
NEXT
Let’s build
what comes next.
Tell us about scope, constraints, and timeline. We reply within one business day.
hello@reiwasakura.tech
Tokyo · distributed delivery