$ whoami

Software engineer.
I ship code, and write it down.

I'm Ma Hui, an indie developer with six products in production: photo cleaner Flick, disk analyzer Diskly, menu-bar monitor Pier, Mac fix toolkit mTinker, travel-agency SaaS Yuwei, and the open-source VibeTrail. Next up is Shellby, a native multi-platform SSH client, launching soon. The blog documents how they get built.

Read the blog Browse the work

~ / zsh

$ ls ~/products
flick      diskly     pier
mtinker    yuwei      vibetrail

$ stats --all
shipped     6
next        shellby  ·  coming soon
platforms   iOS · macOS · Web
open source 1 (Apache-2.0)

$

coming soon

Shellby

Native multi-platform SSH client with a built-in AI Agent — state an ops task in one sentence, approve every step. iOS / iPadOS / macOS.

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Featured work

余位 Yuwei

Multi-tenant SaaS for regional tour operators: drag-and-drop seat planning, full order flow, channel pricing and reconciliation. Row locks + optimistic locking + DB constraints make overselling impossible.

NestJS · React · PostgreSQL

Flick

Photo cleanup for iOS / macOS: swipe to keep or delete, Vision-based similarity clustering and blur detection. Fully on-device, zero third-party dependencies. On the App Store.

Swift 6 · SwiftUI · Vision

Diskly

Disk space analyzer for macOS: squarified treemap, drill-down navigation, safe-to-clean detection for caches and build artifacts. Deletions go to Trash and stay recoverable.

Swift · SwiftUI

Pier

Menu-bar resource monitor for macOS: ports with owning processes, top processes, system stats at a glance, one-click Docker and Homebrew service control. Fully local, no telemetry.