Archives.

Entropy Coding and File Compression: Distinctions, Common Methods, and the Role of Local Continuity

从信息熵、概率模型和完整压缩流水线出发，讲清 Huffman、算术编码、Range Coding、ANS、Golomb/Rice，以及 RLE、LZ、BWT、预测、变换和量化等方法。

Agentic RAG Explained: Turning Retrieval into a Planning and Reflection Loop

A practical guide to Agentic RAG: how it differs from traditional RAG, how the control loop works, common architectures, implementation patterns, …

Object, File, and Block Storage: How to Choose in the Cloud

A practical explanation of object, file, and block storage through addressing, metadata, I/O paths, consistency, redundancy, and workload fit.

The Complete MCP Guide: Architecture, Remote Call Flow, and Building Your Own Server

Understand MCP hosts, clients, servers, and primitives; trace a remote call end to end; then build, deploy, secure, and connect a Python MCP server to …

FastGPT in Depth: RAG, Workflows, and Self-Hosting

A practical guide to FastGPT architecture, RAG retrieval, visual workflows, self-hosting, APIs, production tuning, and project fit.

From Keyword Matching to Vector Retrieval: Three Ways to Search

A practical comparison of keyword matching, fuzzy search, vector retrieval, and RAG, with diagrams and classic application patterns.

互联网架构演进：从单机到云原生，一篇讲清楚

基于视频《互联网架构就这？1个故事讲清楚》整理并扩展，按业务压力、技术解法和架构代价梳理互联网系统从单机到微服务、云原生的完整演进路径。

Those Mystery Processes Finally Make Sense: OpenEnd

A screenshot-led introduction to OpenEnd, a Windows tool for understanding occupied ports, local processes, resource usage, and leftover development …

KV Cache 深入理解：为什么只存 K/V，不存 Q

从 Transformer 自注意力、Prefill/Decode、缓存张量形状、显存公式到工程优化，系统讲清楚 KV Cache 的工作方式，以及为什么旧 Query 没有缓存价值。

Common Image Formats Explained: JPG, PNG, GIF, WebP, AVIF, SVG, and More

A practical comparison of common image formats by compression, transparency, animation, quality, compatibility, and use cases.

Flask 实战教程：面向 Python 开发者的轻量 Web 后端入门

面向已有 Python 基础的开发者，从第一个 Flask 路由开始掌握请求响应、模板、表单、Session、Blueprint、测试和生产部署。

FastAPI 实战教程：面向 Python 开发者的现代 API 入门

面向已有 Python 基础的开发者，从第一个接口开始掌握 FastAPI 的路由、Pydantic 校验、依赖注入、异步 I/O、测试和部署。

A Practical Linux Tutorial: From the Basics to Everyday Use and Service Management

Start with Ubuntu setup and learn terminal commands, file permissions, log analysis, development environments, processes, networking, SSH, systemd, …

How Token Counting Works: How AI Providers and API Proxies Track Usage

A practical explanation of tokenizers, context windows, input and output tokens, streaming usage, tool calls, multimodal billing, and how API proxy …

K8s Container Cloud Deployment: From Dockerfile Image Build to Release

A practical walkthrough for deploying services on an internal Kubernetes container cloud platform, with extra focus on Dockerfile design, image …

HTTP 和 HTTPS 的区别：从明文到加密，一篇讲清楚

从请求响应、明文传输、TLS 握手、证书校验、性能影响和迁移实践几个角度，系统梳理 HTTP 与 HTTPS 的区别。

从 Docker 到 Kubernetes：面向 Docker 用户的 K8s 从 0 到 1 教程

面向已经学过 Docker 的读者，从概念映射、本地集群、Deployment、Service、ConfigMap、Secret、Ingress、发布回滚和排错开始系统入门 Kubernetes。

Docker, Kubernetes, and OpenShift: Relationship, Features, and Differences

A practical explanation of how Docker, Kubernetes, and OpenShift fit together, where their boundaries are, and how to choose between them.

How SfM Works: Recovering 3D Structure from Photos

A visual explanation of Structure from Motion, from feature matching and epipolar geometry to triangulation, PnP, and Bundle Adjustment.

From Fjords to Northern Lights: Nordic Inbound Tourism Visualization, 2015-2024

A public Hugo-hosted version of my data visualization course project.

3D Gaussian Splatting Principles:Rebuilding the World with Millions of Gaussians and Its Cost

Vector Databases vs. Traditional Databases

About the timing of fine-tuning

Claude Code 和 Codex 的区别：从产品形态到工作流，一次讲透

Strapi Explained: From Headless CMS to Customizable Node.js API Backend

Classic interview question:How exactly should you set RAG retrieval top-k?

RAG Fully Explained:From "Closed-Book" to "Open-Book" LLMs

XaaS Explained:Understanding SaaS,PaaS,BaaS and the Whole "as a Service" Family

Databases Panorama:From SQLite to MongoDB, A Complete Guide

CI/CD Complete Guide:From Principles to Practice

MongoDB Tutorial

Deep Learning And Machine Learning Classic Algo

LightGaussian Paper Sharing

About Go Interview

About RabbitMQ Interview

RabbitMQ interview common questions and answers

About gRPC Interview

About Agent Interview

Gin Tutorial

A Deep Dive into Go's Standard Library net Package and TChannel Package

MySQL Tutorial

PyTorch

Design Pattern

RabbitMQ Tutorial for Beginners (Go)

Complete Docker Tutorial from Scratch with Go Language Examples

About Protocol Buffer

Go gRPC Tutorial

Deformable Beta Splatting Interpretation and Sharing

TCP/IP Protocol Stack Interview Questions (Continuously Updated)

MySQL Interview Questions (Continuously Updated)

Redis Interview Questions (Continuously Updated)

C++ the underlying implementation of STL

Redis Basics Learning Document

C++ Features of Each Version

Organized the features of each version since C++11.

CMake Tutorial

The Roles and Differences of auto, auto&, and auto&&?

Based on my understanding, I will briefly explain the differences among the three types of auto.

Git Guide and Principles

Instant Messaging System base Golang

This is a Instant Messaging System base Golang

Golang Learning Note

This is my Golang Learning Note

Eliminate Bugs

MarkdownSyntax

This is Markdown Syntax.