One design philosophy, two use cases
Lâi-Sûn READY
來巡 (Lâi-Sûn)
Available now · Free to use



Be READY. Make peace of mind part of everyday life.
No signup required, and it keeps working offline. Enter your household and how many days you want to be ready for, and it works out your water, food and power coverage. The same list covers packing for a trip abroad and checking supplies before a typhoon.
De Novo xGrid tools are Progressive Web Apps (PWAs) - websites that work like native apps. They install to your home screen, work offline, and update automatically.
One-Tap Install
Add to your home screen directly from browser. No app store required.
Works Offline
Saved data stays readable and editable offline, the capability that matters in a disaster. Sharing links and maps still need a connection.
Updates in the Background
Fetches new versions in the background. Tap the "reload" notice when it appears, or reopen the app, and the new version applies.
Any Device
Works on iPhone, Android, tablet, or computer. Same experience everywhere.
How to Install
- 1Open the link in your browser
- 2Tap the Share button (iOS) or Menu (Android)
- 3Select "Add to Home Screen"
- 4Done! Launch like any other app
One-Click Import Expert Lists
No typing, no screenshots. Click the cards below to instantly import curated checklists to your Lâi-Sûn READY app.
Japan Trip 5D4N
Includes medicines, adapters, travel essentials
Family Camping 2D1N
Includes first aid kit, bug spray, camping gear
Baby Fever Emergency Kit
Includes fever medicine, thermometer, emergency supplies

Pack Perfectly, One Click
Expert checklists built-in. Generate beautiful share cards for IG when done.
- Japan trips, camping, baby bags... import expert lists instantly
- Auto-generate 1080x1080 share cards
- Custom background photos supported
Smart Shopping, Zero Mistakes
Toggle to show only missing items. Share the link with family. Just grab and go.
- Shopping mode shows only what you need
- One-click shopping list link
- Auto-shortened URLs for LINE sharing
- Daily supplies: see which items, like coffee beans, toilet paper or water filters, are running low or due for a change whenever you open the app


Stealth Resilience
Your travel bag is half an emergency kit. Track how many days your family can survive.
- Auto-update inventory after trips
- Real-time resilience score
- Dual-use items auto-tagged
Medical Inventory — Your Data, Only You Can See
Inspection, Delivery, Reconciliation — All in One
Your digital patrol partner — built for medical device distributors. Counts daily, reconciles monthly, covers you during outages — no more LINE numbers or month-end Excel chaos.
Your Data, Only You Can See
Data is encrypted on your phone before it ever leaves. Even we can't read your customer lists or inventory numbers — only you can.
Lot & Expiry — Scan and Done
Scan a barcode to capture lot numbers and expiry dates. When auditors come, pull reports in one click — no digging through paper files.
Scheduled Reminders
System auto-creates tasks based on each site's inspection schedule. Get notified when stock runs low — no relying on memory.
Loans & Returns, Crystal Clear
Loaning gear to partners? Track it properly instead of digging through LINE. Create a record, set a return date, never lose track.
Hospital Price Change Alerts
System checks public NHI data daily. When a hospital changes their self-pay device pricing, you get an email right away.
Delivery Records, Price Locked on the Spot
Wartime emergency medical station: sales rep delivers to the station, picks items and fills quantity on the Lâi-Sûn Pro touchscreen — price locks instantly, receipt auto-generated. Works fully offline; hospital and supplier each keep their own ledger for bilateral reconciliation.
Purchase Prices — Hospital Decides
Wartime emergency medical station: distributor quotes a price in the app, the medical station confirms or edits on the touchscreen — confirmed prices auto-apply. Every step is recorded: who quoted, who approved, when it took effect. Hospital and supplier can independently reconcile their accounts.
Technical Features
- Offline First: PWA architecture. Saved data stays available offline; sharing and maps need a connection
- Privacy Protected: Your list stays in your phone's local storage and our own servers never see it. Content leaves the device only when you tap share, which routes it through a third-party URL shortener
- Cross-platform: Works on phones, tablets, computers, installable to home screen
- Auto Update: PWA silent auto-updates, no manual reinstall needed
- IRS Compatible: Supports CIRS community supply distribution packet import
- Safety-II Design: Not just about "avoiding failures"—focuses on "how to succeed." Guided features help families maintain resilience continuously, not just react when disaster strikes
Single HTML file, no backend required
HTML5 + Tailwind CSS + Alpine.js
De Novo xGrid Resilience Tool Series
From Lâi-Sûn READY to Community Grid to Medical Grid, the De Novo xGrid series provides complete disaster preparedness inventory management solutions
Lâi-Sûn READY
ReleasedLâi-Sûn READY
Making resilience part of everyday life. Offline supply management app for Taiwan families. Enter your household and target days once, and "Guide Me" works out coverage across five categories: water, food, power, medical and equipment.
PRO for Medical Distributors is liveCommunity Grid
Exercise ReadyCommunity Grid (CIRS)
Community-level disaster management. Integrates inventory, personnel check-in, triage, and zone configuration; supports NHI IC card reading, disaster recovery, and cross-system coordination. Volunteers can check in and work offline from their phones.
Medical Grid
Exercise ReadyMedical Grid (MIRS)
Designed for medical stations and backup surgical units, with large-scale combat-casualty (LSCO) modules, idempotent offline sync, and disaster recovery; maintains full data continuity offline.