ZHEN
Hire me
INDIE BUILDER · SHIP AI THAT EARNS

Turn vague AI ideasinto products that earn.

Zhixing — 6-8 weeks to ship. 5 AI products live for clients.

From LINE customer-service automation to AI health grading and a real-estate + LLM analytics platform — turning "the boss wants AI" into shipped revenue.

See what I shippedTalk about your idea
01 — WHAT CLIENTS GOT

Five products. Five problems solved.

Designed, built, shipped, and operated solo. Every project solves a real headache for a real owner.

eyebird.ailoop.uk
REPLACES EXPERTSLive

EyeRace Pro

30-second AI grading replaces senior breeder evaluation. Clubs cut grading time by 80%; novices can use it on day 1.

FlutterGoPyTorchONNX
MAC'S MISSING FEATUREShipped

dockPeek

Hover Dock to preview windows live. Fixes the #1 complaint from Windows-to-Mac switchers; native API at 60fps.

SwiftSwiftUIAppKit
beaubot.ailoop.uk
AUTO-REPLYOperating

BeauBot

Beauty-studio owners stop answering LINE after hours. AI auto-resolves 70% of messages; live in under 10 minutes.

GoNext.jsOpenAIEino
ASK IN PLAIN ENGLISHM1 in progress

housing_rs

Transactions + neighborhood + AI in one. Investors ask in one sentence, get structured results — no more 5 open tabs.

RustAxumPostGIS
ESCAPE PLATFORM FEESLive

julefu-bnb

BnB owners take direct bookings online. Skip 15-20% platform fees, ~20% revenue uplift, one-person admin.

Next.jsPrismaStripe
See all work →
02 — WHERE ARE YOU STUCK?

Three problems I'm good at solving.

Pricing depends on scope and timeline. Let's chat 30 min about your pain — free.

→ 預約 30 分鐘
01SERVICE

"We want to do AI but don't know where to start"

Turn vague AI ideas into shipped, revenue-earning products. From prompt design to agent architecture to model deployment.

  • OpenAI / Claude / OSS model integration
  • ReAct / tool-use agent architecture
  • Vector store + RAG pipeline
PRICING
from US$ 2,500 / 4 weeks
02SERVICE

"Investor demo in 6 weeks"

Idea → live. Next.js full-stack or Flutter / React Native cross-platform with auth / billing / admin all wired up.

  • Auth, billing, admin — all wired
  • Vercel / Fly.io / VPS deploy
  • 1 month of post-launch fixes free
PRICING
from US$ 6,000 / 6-8 weeks
03SERVICE

"Our engineers are stuck"

Architecture review, perf tuning, tech selection, code review. Hourly, retainer optional.

  • Deep on Rust / Next.js / Flutter
  • AI Agent / ML pipeline review
  • Long-term retainer available
PRICING
from US$ 150 / hr
03 — HOW WE WORK

Four steps from chat to launch.

  1. 01

    Discovery

    30-min call to scope the problem, users, budget, timeline. Free, no deposit.

  2. 02

    Design

    1-2 weeks for IA, wireframes, tech selection, contract. One-time fee.

  3. 03

    Build

    Weekly demos, Slack-async, monthly invoicing. Legal receipts.

  4. 04

    Handoff

    Launch, docs, training, 1 month of free fixes. Optional ongoing retainer.

04 — WHAT CLIENTS SAY

What people say after working with me.

Testimonials coming soon.

M. Chang
創辦人 · 美業 SaaS
#01

Testimonials coming soon.

K. Lin
技術主管 · 房產科技
#02

Testimonials coming soon.

J. Wu
Indie Maker
#03
05 — RECENT WRITING

Building in public.

From engineering deep dives to product decisions — thinking in the open.

All posts →
#01ENGINEERING

Shipping a PyTorch model into a Flutter app

From ONNX export, ARM64 build flags, to isolate-based inference threads. The full path EyeRace Pro took to move models from cloud to mobile.

3 min2026-04-22
#02PRODUCT

Multi-tenant LINE agents: 5 hard lessons from BeauBot

One channel per store, prompt isolation, shared context — what we learned turning a ReAct agent into a multi-tenant SaaS.

3 min2026-04-15
#03RUST

Why housing_rs picked Axum over Actix

tower ecosystem vs actor model, sqlx compile-time checks vs Diesel ORM — practical Rust framework selection notes for a mid-size project.

3 min2026-04-08
06 — LET'S BUILD

How does your next product turn AI into revenue?

Let's chat. 30 min free, no topic limits.

Email me