Legendary Tech Blogger Chen Hao Legacy | Generated by AI

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Question: Provide an introduction to https://coolshell.cn and its author.

Answer:

CoolShell.cn (酷壳) is a highly influential Chinese technology blog focused on software development, system architecture, programming practices, and critiques of industry trends. Its Chinese tagline is “享受编程和技术所带来的快乐” (“Enjoy the joy brought by programming and technology”), with the English subtitle “Coding Your Ambition.”

The blog covers in-depth, opinionated articles on topics such as:

Many articles are long-form, draw from real-world experience, include code examples or references, and often spark heated discussions in the comments (some posts have hundreds of comments and hundreds of thousands of views). It is widely regarded in the Chinese developer community as a high-quality, independent source of technical insight and career advice.

The site has been running since around 2009 (moved from CSDN blog) and remains accessible with content from as late as 2023 still prominently featured.

The author was Chen Hao (陈皓), better known online by his nickname “左耳朵耗子” (Left-Ear Mouse / Zuo Er Duo Hao Zi). He was a prominent Chinese software engineer, architect, technical influencer, and entrepreneur (born 1976 – died May 13, 2023, aged 47, due to sudden heart attack).

His background included senior technical roles at companies such as Amazon and Alibaba, where he worked on large-scale systems (including Alibaba’s Double 11 events and Aliyun-related projects). In 2015 he founded MegaEase, a company focused on cloud-native infrastructure and service mesh solutions.

Chen Hao started sharing technical writings online around 2003 (initially on CSDN under haoel), moved to the independent coolshell.cn domain in 2009, and later created popular paid courses on platforms like GeekTime (e.g., his legendary “Left Ear Listening to Wind” series on programmer leveling up and architecture). He was respected for his candid, no-nonsense style, deep technical knowledge, willingness to challenge hype (microservices, serverless, etc.), and emphasis on fundamentals, continuous learning, and professional growth.

After his passing in 2023, the community mourned him widely — he is remembered as a “technical evangelist,” mentor to many developers, and one of the most impactful independent tech bloggers in China. The blog remains online as a valuable archive.

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