Design &
Engineering

CRAFT & CODE,SHIPPED UNDERONE ROOF.

[ SELECTED WORK ]

Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot
Cook AI app store screenshot
Rotcut app store screenshot

Where craft meets code.

[ SERVICES ]

pick yourstarting point

Three ways in. Same standard of craft at every tier. Fixed quote after a scoping call - no hourly meter, no surprise invoices.

PKG.01SHAPE IT

DESIGN SPRINT

Your rough idea, turned into something people can click and react to.

  • +Product narrative & flows
  • +Clickable prototype
  • +Design system starter
  • +Real build estimate
PKG.02SHIP IT

MVP BUILD

Design and engineering under one roof, from first screen to live product.

  • +iOS, macOS, or web app
  • +Weekly builds from week one
  • +TestFlight / staging access
  • +App Store or prod deploy
4-8 WKSSTART ↗
PKG.03SELL IT

STORE LAUNCH

The listing that sells the download - designed end to end.

  • +Icon & screenshot set
  • +Listing copy & keywords
  • +Preview video direction
  • +Upload & review handling
1-2 WKSSTART ↗

[ STORE DESIGN ]

screenshotsthat convert

Store listings designed to sell the download. Icon, copy, and a screenshot set that reads in a scroll. Below is the Rotcut listing, designed end to end.

Rotcut App Store listing designed by Kopon

Mostproductsdieinthegapbetweentheideaandthethingthatships.Iclosethatgap.

[ THE STACK ]

the stack i reach for

FigmaFIGMA
SwiftSWIFT
CursorCURSOR
OpenAIOPENAI
ReactREACT
Next.jsNEXT.JS
TypeScriptTYPESCRIPT
ClaudeCLAUDE
TailwindTAILWIND

[ PROCESS ]

how i deliver

An ideal delivery, mapped across the weeks. Phases overlap on purpose. Discovery keeps informing the build, and shipping starts before everything is “done.”

Phase

Discovery

Find the signal. What matters, what's stuck.

2 weeks

Shape & design

Turn the rough idea into a system people get.

3 weeks

Build

Design it, build it, ship it, under one roof.

4 weeks

Launch & iterate

Real people, real response, keep improving.

3 weeks

[ QUESTIONS ]

asked every time,answered straight

Every project gets a fixed quote after a short scoping call - no hourly meter running, no surprise invoices. Sprints cost less, full builds cost more, and you approve the number before anything starts.

[ CONTACT ]

let's buildyours next.

Pick a time that works. A quick call to talk through what you’re building, where it’s stuck, and how I can help ship it.

KOPON.BUILD - DESIGN & ENGINEERING - (C) 2026