orca-zhang

[Simplified Chinese README | 简体中文说明](README_cn.md)

> Open to new opportunities. Reach me at [email protected].

My Masterpieces

> This is a Beef Wellington I learned to make in 2022. My small dream is to open a Wuxi snack shop, selling bubble wontons, small steamed buns, magnolia cakes, hot and sour soup, and Suzhou-style noodles.

• 🤖 ZimaOS-Blue Local-first pure-Go AI Agent Runtime for NAS / edge devices

- 🪶 Pure native runtime: Fully written in Go, no Python/container dependency, idle memory usage only 19 MB, suitable for NAS / router / ARM devices - ⚡ Evaluation-driven architecture: Built-in Harness regression/evaluation framework, every PR gated by replay + scoring to avoid functional regressions - 🔍 Deep Research workflow: Unified planning + parallel retrieval + citation report generation, improving research efficiency by nearly 10× - 🌐 Browser automation engine: Three-layer replay architecture (HTTP → proxy extraction → browser engine) improving stability for complex websites and crawling - 🧩 Extensible agent ecosystem: Built-in skill marketplace, GitHub integration, CLI/remote control, multi-context cache support - 🎤 Local multimodal loop: STT / TTS / OCR / PDF parsing + local Qwen3.5 inference, fully offline capable with data staying on-device - 🛠️ Cross-platform native support: Linux / macOS / Windows / ARM64, designed for lightweight edge AI deployment - 📦 MIT Open Source · 39+ iterations from v0.1 → v0.10.39 in 2026 Q1

• 🐋\[orcas\] 🗄️Lightweight NAS solution that is smarter and more modern. (WIP)

- 💸 Low cost: 3D print hot-swappable backplane reduce costs to 25%, ultra-high-performance system only costs ¥753.6 (without disk), 3\~18TB PMR storage only costs ¥1233.6\~3123.6 - 🚧 Cross-platform: Supports Win, Linux, MacOSX and (RPi / ARM64) with only 50W for 6 disks - 📚 Replaceable storage engine: Default sqlcipher + self-developed storage - 📤 Supports multiple access protocols: http1.1/http2.0/http3.0/nfs/smb

• ❄️\[idgen\] A snowflake algorithm ID generator

- 🚀 Supports redis-based or local memory (fallback on failure) - ⌚ NTP synchronization and secure clock rollback (default 1 minute) - 🦖 JS precision security (not exceeding 53 bits)

• 🦄\[ecache\] Lightweight local memory cache

- 🤏 Less than 300 LOC, ready to be integrated in 30s - 🚀 High performance, minimalist design, concurrency safe - 🌈 Supports LRU and LRU-2 modes - 🦖 Additional components support distributed consistency

• 🏎️\[borm\] A better ORM library

- Similar to writing SQL, almost no learning overhead. The C++ version (not yet open-sourced) can handle data load/store from db to pb/struct in one line . The Go version uses reflect2 to solve type conversion pain points, with performance close to or slightly better than native, and has been used in production environments of two listed companies without bugs for many years.

• 🗂️\LRUCache（[go / c++ / js)\]

- Implementations in three languages, all beats 100% in leetcode. The C++ version cleverly avoid copying by overloading the key, with powerful performance.

• 🐞\[emock\] Next-generation mock library

- Comparable to Google's googlemock, cross-platform support for mocking all functions (all 6 kinds of functions), with one macro handling everything. Unique solution of windows pdb file overload symbol matching algorithm, reflection-like, API Hook principle implementation, and the only one trampoline safe on the Internet.

• 🚀\[xpjson\] Mini cross-platform json library

- Born in 2013, implemented with C++11 & template metaprogramming (TMP, type extraction) techniques, only 1500 lines, no external dependencies, support SSO (Small String Optimization)/COW (Copy On Write)

• 💜\[influxdb\] The most popular C and C++ client on GitHub

- Less than 300 LOC to decode HTTP requests, with no dependencies, cleverly using Duff's device to merge processing ordinary and chunked returns

• 💉\[yapi\] yet another process injector

- Eliminate the difference between x86/x64/wow64 under Windows, injects the target process just like writing a local program, and no longer requires dll support

• 🔓\[unlocker\] Ring3 layer (user mode, non-driver) file unlocking library

- Possibly the unique non-violent solution in the world to unlock malformed directory deletion (this solution cannot be found on the Internet), the unique memory-mapped file unlocking method (the association between handle and mapfile has a fault line), supports cross-x86/x64/wow64 operations, supports skipping pipelines and other special handles that may cause deadlock

• 🔍\[ezpp\] A very easy-to-use C++ code-level performance profiler with online profiling

- The only one to support recursion and multithreading (compared to Google gprofiler and Intel VTune), widely used internally by the company, and has resulted in performance optimization contributions many times

• 🔲\[jsqrcode\] Pure JS version QR code parsing library (zxing port)

- Several bugs fixed, added support for Japanese code table/Chinese character decoding (loaded on demand), greatly improved decoding success rate

• 🆙\[AutoUpdate\] Automatic update module implemented based on MFC

- Minimalist design (only bubble interaction), multilingual support, self-update, multiple update strategies, multi-node deployment, full-screen detection, and provided SDK plug-and-play

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