A Traditional Chinese technical blog delivered by email, mixing system design reading notes that critically examine classic engineering articles with step-by-step LeetCode problem walkthroughs. Readers get practical explanations of distributed locking, caching trade-offs, Kubernetes, Linux, Java, Rust and DevOps topics.
Website: https://www.shar0.dev/
Engineering notes from a developer building AI tools and API-driven systems, with each issue unpacking a specific bug or design lesson. Readers get detailed post-mortems on background jobs, small local models, and template bugs, along with the principles drawn from them.
Explains system design concepts and engineering case studies from large companies, such as how Uber built its Genie support assistant and why Shopify moved off React Native. Each issue breaks a topic into a structured walkthrough based on publicly shared details, with diagrams and references.
Each issue takes one distributed-systems or AI-agent design problem and explains it through a concrete failure scenario. Readers get practical design principles for sagas, agent state and agent memory.
A technical newsletter explaining software and AI engineering concepts such as AI engineering basics, networking fundamentals, and HTTP/2 vs HTTP/3, with short explanations, analogies, and occasional sponsor sections. It helps engineers build practical understanding of how systems and AI tools work.
One short email a week with hand-picked newsletters from the index. Free, no spam, unsubscribe anytime.
