Taking new projectsAI Automation/Full-Stack/EN · JP

AI Automation/Full-Stack/EN · JP

I build software, run it in a real business, and grow the audience around it.

I'm the co-founder and CTO of a Tokyo company serving inbound travelers. I built the booking platform, the internal tools, and the AI automation behind it, and I run the business that depends on them every day.

See my work→Get in touch

01Platform

$0k/ month

Booking and payments platform I built and operate

02AI agents

Claude Code+ MCP

Agent that automates core PM workflows, published at Mercari

03Audience

0followers

Grown from zero around fitness and self-growth, then measured

Shipped with

Next.js

TypeScript

PostgreSQL

Python

Automation console

Software isn't the finish line.
Running it is.

I build booking and payments AI agents and content pipelines – then run a real business on them every day.

Shipped solo. Measured in revenue, not demos.

Because you deserve a system that still works next month.

Booking flow

Plan→Location→Time slot→Deposit

book.tettyphotostudio.com

19.9k peak754

DepositPaid

At booking30%

After the shoot70% · auto

CurrencyCustomer's own

Photographer assigned · calendar synced

Mercari PM agentIn use

1Problem signals
2PRD draft
3UI prototype

PublishedMercari Engineering

Claude Code

MCPAnthropic API

Every morningNo human input

Rendered10 videos

Views · 30 days1.14M

@imshogo.kFitness · self-growth

Followers30,000

Videos past 1MMultiple

Leading signalShares

What I build

Software that connects your tools, automates the busywork, and shows you the numbers.

AI agents, automations, data pipelines, and full-stack products, built to keep running long after launch.

AI agents that do the work

Agents built on Claude Code, MCP, and LLM APIs that take a task from input to finished output: research, drafting, triage, reporting.

Connect the tools you already use

Stripe, Google Workspace, Slack, Notion, and your own database wired into one flow, so nobody copies data between apps by hand.

Payment captured

Payments that run themselves

Stripe checkout, deposits, and automated follow-up billing that work for customers in any country.

New request

Assign owner

Send invoice

Ops

Automation

Replace manual operations

Internal apps and workflows that turn DM threads and spreadsheets into a process your team actually follows.

@imshogo.k

Followers

30,000

Funnel analysis

Drop-off found

39%

Collect data, find the signal

Analytics, session replays, and account data turned into a clear decision about what to fix or build next.

Web products, end to end

From the first screen to payments, deployment, and monitoring. Next.js, Go, and PostgreSQL on AWS, shipped fast and built to last.

GA4 · book.tettyphotostudio.com · Aug 18 – Sep 14, 2026. Real numbers from a booking platform I run.

4002000

Sep 62026

New343

Returning27

Sep 62026

New343

Returning27

Aug 18Aug 25Sep 1Sep 8Sep 14

Booking flow

GA4 users

Plans3,828
Locations1,468
Checkout1,206
Key eventsevent106
Purchasersaudience81

Channels

New users

Organic Social2,225
Direct1,858
Organic Search54
Referral9
AI Assistant6

Running in production

Not prototypes. Systems with real customers, real payments, and real traffic — built and operated by one person.

Monthly revenue: $0kBooking platform I built and operate
Bookings processed: 0Jan – Sep 2026
Videos generated every morning: 0No human input
Followers: 0Grown from zero, then measured

Booked from 20+ countries · shot in Tokyo

Built for production

Systems that run every day, not demos

Payments, calendars, analytics, AI agents and content pipelines — wired together and running in a real business.

STRIPE30% deposit at booking

STRIPEBalance after the shoot

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

CLAUDEProblem → PRD → prototype

MCPAgent tools

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

NEXT.JSMultilingual booking flow

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

CLAUDEProblem → PRD → prototype

MCPAgent tools

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

NEXT.JSMultilingual booking flow

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

STRIPE30% deposit at booking

STRIPEBalance after the shoot

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

NEXT.JSMultilingual booking flow

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

STRIPE30% deposit at booking

STRIPEBalance after the shoot

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

CLAUDEProblem → PRD → prototype

MCPAgent tools

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

STRIPEBalance after the shoot

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

CLAUDEProblem → PRD → prototype

MCPAgent tools

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

NEXT.JSMultilingual booking flow

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

STRIPE30% deposit at booking

MCPAgent tools

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

NEXT.JSMultilingual booking flow

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

STRIPE30% deposit at booking

STRIPEBalance after the shoot

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

CLAUDEProblem → PRD → prototype

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

STRIPE30% deposit at booking

STRIPEBalance after the shoot

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

CLAUDEProblem → PRD → prototype

MCPAgent tools

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

NEXT.JSMultilingual booking flow

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

CLAUDEProblem → PRD → prototype

MCPAgent tools

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

NEXT.JSMultilingual booking flow

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

STRIPE30% deposit at booking

STRIPEBalance after the shoot

PYTHON10 videos every morning

EXPOClaim a shoot

EXPOMonthly invoices

NEXT.JSMultilingual booking flow

GOBooking API

AWSProduction infra

VERCELIron & Code tool releases

STRIPE30% deposit at booking

STRIPEBalance after the shoot

GCALTwo-way calendar sync

GA4Funnel event per step

CLARITYSession replay

CLAUDEProblem → PRD → prototype

MCPAgent tools

booking/deposit.go

// 30% at booking. The balance is collected after the shoot.func NewDeposit(b Booking) (*stripe.PaymentIntent, error) {  deposit := b.TotalAmount * 30 / 100  return paymentintent.New(&stripe.PaymentIntentParams{    Amount:   stripe.Int64(deposit),    Currency: stripe.String(b.Currency),    Metadata: map[string]string{"booking_id": b.ID},  })}

app/book/time-slot-step.tsx

// Every funnel step is measured, so drop-offs show up in GA4.export function TimeSlotStep({ date, onSelect }: StepProps) {  const pick = (slot: Slot) => {    gtag("event", "select_time_slot", { date, slot: slot.start });    onSelect(slot);  };  return <SlotGrid date={date} onPick={pick} />;}

pipeline/morning_batch.py

# Runs every morning with no human input.def run_morning_batch(date: str) -> None:    clips = select_clips(source="footage/", limit=10)    for clip in clips:        caption = generate_caption(clip)        video = render_short(clip, caption)        queue_for_publish(video, date=date)

staff-app/ClaimButton.tsx

// Photographers claim open shoots themselves.export function ClaimButton({ shoot }: { shoot: Shoot }) {  const claim = useMutation({    mutationFn: () => api.post(`/shoots/${shoot.id}/claim`),  });  return (    <Pressable onPress={() => claim.mutate()}>      <Text>{claim.isSuccess ? "Claimed" : "Claim shoot"}</Text>    </Pressable>  );}

Production integrations

Stripe, Google Calendar, GA4, Clarity, Claude and MCP — each one wired into a system on /work.

See the systems

Multi-language stack

Go and TypeScript for the booking platform, Python for the video pipeline, React Native for the staff app.

About the stack

Real-time events

A booking fans out to Stripe, Google Calendar and GA4 the moment it is created, in the customer's currency.

Follow a booking

WHY ME

Built differently. On purpose.

I ship, I don't slide-deck.

Sole developer on a booking platform behind 1,200+ clients and a best month of ~$19.9k. I design, build, deploy, and operate it — so I sweat the details that only show up after launch.

I measure before I automate.

I found a 39% drop-off in a booking funnel from session replay data before touching the code. Automation comes after you know where the time and money actually go.

I operate what I build.

The booking platform, the staff app, and the content pipeline all run a business I co-founded, every day. I don't hand off and walk away — I live with the result.

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Have something that needs to be built?

Tell me the workflow and what a good outcome looks like. I'll reply with a clear next step.

Get in touch See my work

1,200+ clients handled
Published at Mercari
30K followers