Problems I've already solved
I want to take payments on my site — with convenience-store pickup
ECPay card payments, 7-Eleven pickup & pay and e-invoices — the full flow is live in my demo.
Customers keep asking the same questions. It’s exhausting.
An AI support bot that answers from your FAQ and documents — on LINE, too.
Running orders in Excel is driving me crazy
An admin dashboard: orders, inventory, members and reports on one screen.
I want customers to book online
A booking system that finds open slots, prevents double-booking and connects to LINE.
My site is slow and keeps going down
Find the bottleneck, tune performance, and move to reliable cloud hosting with automated deploys.
I want Google / LINE login
Social login, so members don’t need yet another password.
Ballpark pricing, up front
Final quotes depend on scope. The first consultation is free.
Websites & Admin Dashboards
Company sites, membership systems, order and inventory back offices, business reports. Works great on phone and desktop.
Payments & Social Login
ECPay card payments, 7-Eleven pickup & pay, e-invoices; Google / Facebook / LINE login.
AI Integration & Automation
AI customer support, knowledge bases that answer from your uploaded documents, speech recognition and synthesis, automating repetitive work.
Launch & Operations
Cloud deployment, domains and HTTPS, CI/CD, performance tuning, production troubleshooting.
Not just screenshots — try them live
Demo projects I built to show what I can do. Payments run in the ECPay sandbox.

Omnichannel Fashion Store
Online store + in-store POS, sharing one inventory and one member base
- ECPay card, 7-Eleven pickup & pay, cash on delivery
- E-invoice issued automatically after payment
- In-store POS checkout, multi-store stock transfers, returns & exchanges
- Revenue reports combining online and in-store sales
- 1Pick an item
Choose a size and color and add it to the cart. At checkout, use “Guest demo login” — no sign-up needed
Open ↗ - 2Choose a 7-Eleven
Checkout opens ECPay’s 7-Eleven store map — pick a store for pickup
- 3Pay with a test card
The checkout page lists ECPay’s public test card numbers. Nothing is actually charged
- 4Check invoice & shipping
The order page shows the auto-issued e-invoice. Use the “Test simulator” to move it to arrived and picked up
- 5Open the merchant admin
Your order now shows up in orders, inventory and revenue reports (read-only for guests)
Open ↗

Booking & Member CRM
One back office for members and bookings across multiple locations
- Computes available slots automatically and prevents double-booking
- Online booking page for customers
- Public API: take bookings straight from your website or LINE
- Prepaid balance / class passes, role-based permissions
- 1Pick a service & time
Only genuinely open slots are listed — booked ones never appear
Open ↗ - 2Submit name & phone
No sign-up. The system assigns a stylist who’s free and offers that service
- 3Look up your booking
Tap “Look up my booking” and enter the same phone number — the demo shows the verification code on screen
- 4Open the store admin
See the booking on the calendar. If you signed in on the shop demo, you won’t need to sign in again
Open ↗
AI Knowledge-Base Assistant
Upload PDFs / FAQs and get answers on the web and LINE — with sources cited
- Automatic document chunking and vector search (RAG)
- Ask directly through a LINE Official Account
- Hands off to a human when it can’t answer
- Usage and cost dashboard
Four steps, visible at every stage
Talk it through
Free — first we pin down the problem you’re solving
Quote & timeline
Split into small phases, each with its own price and delivery date
Staged delivery
Every phase comes with a test link you can click through
Launch & warranty
I deploy it for you, and fix bugs free for 30 days after launch
Questions you might have
I only have an idea, no spec yet. Is that OK?
Absolutely. Our first conversation turns your idea into a spec — free of charge.
I already have a website and just want new features.
No problem. I’ll look at the platform you’re on and tell you the most cost-effective way to add them.
What if something breaks after delivery?
Bugs within 30 days of launch are fixed for free. After that, we can set up monthly maintenance.
Do you work on-site?
I work fully remotely; in-person meetings are possible in the Kaohsiung area.
Tell me your idea — I’ll reply with a plan and a quote
Usually within 24 hours
Contact me → kaochi.lab@gmail.com