Models
Notes on the mechanisms inside modern neural networks, written to support a consistent reading of papers, source code, and training behavior.
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现代大语言模型的架构细节：从 RMSNorm 到 Loss 计算 ZH
From decoder-only blocks, GQA, RoPE, and MoE to inference and loss, with an emphasis on why each design exists.
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搞清楚 BatchNorm、LayerNorm、RMSNorm 到底在干嘛 ZH
A comparison of how normalization methods choose their statistics and how those choices affect training and model behavior.
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强化学习算法笔记：用一套框架串起 MC、TD、DQN、PPO、SAC ZH
A unified view of common reinforcement learning algorithms through value, policy, and data reuse.
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强化学习基础笔记 ZH
Core notation, value functions, Bellman equations, and policy optimization, organized as a reference for reading papers.
Agents
What a small agent with real file access reveals about tools, context, permissions, and the execution loop.
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从零写一个 AI 编程助手：MiniCode 的设计笔记 ZH
Tool design, context management, and safe file operations, explored through a coding agent implemented in Go. GitHub
Engineering
Problems that emerge as systems move beyond a demo, especially around permissions, caching, concurrency control, and extension boundaries.
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STEP File Viewer Online: Open and Inspect CAD Files EN
A practical browser workflow for reviewing STEP and STP models, checking dimensions, and understanding geometry properties.
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从插件系统到微内核平台 ZH
The boundary between a stable kernel and business plugins, using NocoBase to examine how a platform remains extensible.
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从 Mini NocoBase Demo 看无代码平台的微内核与插件化设计 ZH
A small Python implementation used to understand dynamic tables, actions, permissions, UI schema, and workflows.
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给 FastAPI 后台模板补了一轮生产化能力 ZH
Caching, background tasks, and observability, with attention to problems that appear only after a service enters a real runtime environment. GitHub
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一个分布式锁没能拦住的重复下发问题 ZH
A failure analysis of why a duplicate-send path remained even after the distributed lock appeared to work.
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FastAPI-Template 实践笔记：以依赖注入管理请求生命周期 ZH
Using dependency injection to manage transactions and request-scoped resources after global sessions caused data issues.
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FastAPI-Template 设计笔记：从“可扩展”到“可落地” ZH
The architectural boundaries required for a reusable service foundation.
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聊聊我在 FastAPI 项目里踩的一个缓存坑 ZH
How custom JSON responses and a cache layer failed together in a way the type system did not capture.
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一次接口文档站工程化实践 ZH
Using VitePress, Swagger, and Cloudflare to consolidate API documentation into a single site.
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