I build practical tools at the intersection of systems engineering and AI-native applications.
I focus on shipping work that is technically solid and directly useful to developers.
- Systems performance: concurrency, memory, and low-level optimization
- Tooling and infrastructure: compiler/language tooling and engineering productivity
- AI-native products: agents, automation workflows, and developer tooling
-
Cangjie Language Server (Backend Architecture)
Built backend architecture and core service capabilities for compiler-adjacent tooling. -
Performance Engineering for Large-Scale Apps
Delivered system-level performance tuning in production contexts (including Feishu, Douyin, and Bilibili). -
AI-Driven Mobile Testing Platform (Current)
Building an automated mobile testing platform on top of Mobile-Agent-v2 (MAIUI).
| Project | Snapshot |
|---|---|
| Sinan | |
| VibeBar | |
| TrustSkill | |
| jsonrpc4cj |
- Shipping AI-native developer products with strong reliability and observability
- Publishing implementation notes on systems + AI engineering
- Exploring multi-agent collaboration and blockchain engineering patterns
- Open Source Repositories: github.com/AgensK?tab=repositories
- Writing / Notes: ninthbit.org
- Build in Public Updates: @ninthbit_ai
- RSS Feed: ninthbit.org/rss.xml
- All Articles: ninthbit.org
- Latest Posts (from RSS):
- 2025 Year-End Reflection — 2025-12-25
- YouMind Content Creation SOP for WeChat Articles — 2025-12-13
- Why Do We Set Out — 2025-12-04
- The Magic of MDX: From Text to Interaction — 2025-11-25
Data source: GitHub Linguist bytes from Sinan, VibeBar, TrustSkill, and jsonrpc4cj.
Last refreshed: 2026-02-28 16:39 CST.
| Language | Share (bytes) | Repositories |
|---|---|---|
| Python | 53.2% | Sinan, TrustSkill |
| Swift | 18.5% | VibeBar |
| TypeScript | 14.6% | Sinan |
| CSS | 6.9% | Sinan |
| Shell | 6.6% | VibeBar |
| JavaScript | 0.1% | Sinan |
| HTML | 0.1% | Sinan |
| Cangjie* | N/A | jsonrpc4cj |
* GitHub Linguist currently does not classify Cangjie, so percentage shares exclude .cj files.
Refresh command: scripts/update_tech_stack.sh
- Reliability and observability of AI agents in production
- Developer experience: moving from “works” to “feels great”
- Applying systems engineering discipline to high-performance AI applications
- 📫 Email: oldmeatovo@gmail.com
- 🌍 Blog: ninthbit.org
- 𝕏 Twitter: @ninthbit_ai
- 💬 Topics: performance tuning, compiler tooling, backend architecture, and AI agent engineering
Build useful things. Share what works. Keep compounding.