# About Me

- Date: 2024-01-01
- Author: ByF
- URL: https://blog.baifan.site/en/profile/
- Description: ByF (BaiFan / 白帆) — backend engineer and long-cycle thinker, author of the byf terminal AI coding agent and dev-skills. Applies a geologist's timescale to AI-era tech and business.

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> **Technology and business in the AI age, taken apart on the timescale of geology.**

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## What I Write

This blog focuses on rigorous deep thinking and software engineering, rejecting buzzword inflation and surface-level summaries:

### 1. AI Fundamentals & System Implementation
- **[Complete Guide to RAG Systems](/en/rag-system-complete-guide-langchain-ollama-pgvector/)**: Building a production-grade local Retrieval-Augmented Generation system with LangChain, Ollama, and pgvector.
- **[Glossary of 270+ AI Terms](/en/ai-technical-glossary-complete-guide/)**: Systematic taxonomy spanning tokens, embeddings, Transformers, and prompt engineering.
- **[GPU Accelerated Training & CUDA](/en/gpu-accelerated-training-cuda-complete-guide/)**: Memory allocation patterns, hardware accelerators, and parallel training topologies.

### 2. AI Agent Architecture & Source Dives
- **[Claude Code Source Dive: The Think-Act-Observe Loop](/en/claude-code-think-act-observe-loop/)**: Deconstructing industrial Agent design — how a single closed loop powers complex tool use and reflection.
- **[Agent Memory Architectures](/en/claude-code-memory-system/)**: Workspace context persistence, session compaction, and progressive disclosure protocols.
- **[Multi-Agent Engineering](/en/multi-agent-collaboration-engineering/)**: Dynamic intervention, runtime boundaries, and agentic orchestration.

### 3. Current Affairs & Global Economics
- **[The Economist Readings](/en/tags/economist/)**: Structural analysis of geopolitics, semiconductor sovereignty, and macro trends.
- **[Twilight of the County Town](/en/china-county-economy-twilight/)**: Micro-level investigation of industrial relocation, real estate, and social shifts.

### 4. Engineering Practice
- **[Tmux Practical Guide](/en/tmux-practical-guide/)**: The essential command set for persistent terminal multiplexing and splits.
- **[Distributed Heartbeat Systems](/en/distributed-system-heartbeat-mechanism/)**: Failure detection, leases, and partition tolerance.

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## About ByF

**ByF** and **BaiFan (白帆)** are two spellings of the same name. Backend & AI systems engineer, author of the [byf terminal AI coding agent](https://www.npmjs.com/package/@byfriends/cli) and the [dev-skills engineering skill set](https://github.com/ByronFinn/dev-skills). The canonical home of this digital identity is [baifan.site](https://baifan.site); technical writing lives at [blog.baifan.site](https://blog.baifan.site).

Once a reader of Earth's deep history, now a builder of digital systems.

- **The Deep-Time Perspective**: Geology taught me to evaluate evolution in large epochs — maintaining restraint and clarity amid technological frenzy.
- **First-Principles Engineering**: Backend systems and distributed infrastructure are my craft. Understanding fundamental contracts and true runtime costs is the rule.
- **A Gentle Cynicism**: Seeing technical reality and system constraints clearly, without bitter nihilism or hollow cheerleading.

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## Connect

- **Home**: [baifan.site](https://baifan.site)
- **Email**: [blog@baifan.site](mailto:blog@baifan.site)
- **GitHub**: [@ByronFinn](https://github.com/ByronFinn)
- **X**: [@ByFanX](https://x.com/ByFanX)
- **RSS Feed**: [/en/index.xml](https://blog.baifan.site/en/index.xml)