$ whoami
Software engineer.
I ship code, and write it down.
I'm Ma Hui, an indie developer: 8products in production and 3 open-source projects, each designed, built, and operated by one person; Vela Player lands soon. The blog documents how they get built.
Recent posts
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.
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.
Diskly
Disk space analyzer for macOS: squarified treemap, drill-down navigation, global fuzzy search, and safe-to-clean detection for caches and build artifacts across many ecosystems. Deletions go to Trash and stay recoverable.
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.
Shellby
Native SSH client across iOS / iPadOS / macOS from one Swift codebase: split panes, multi-session and command broadcast on the Mac, plus a built-in AI Agent that turns plain-language ops tasks into step-by-step actions — every change waits on your approval, while read-only commands run automatically. A from-scratch Mosh-compatible transport keeps sessions alive across network changes and backgrounding. Keys live in the system Keychain and never hit disk in the clear, synced across the three Apple platforms via iCloud. Android is in closed beta; HarmonyOS is in review.