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Harrison Guo

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Testing Real-World Go Backends Isn't What Many People Think
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Testing Real-World Go Backends Isn't What Many People Think

#go #testing #backendengineering
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8 min read
Scale-Up vs Scale-Out: Why Every Language Wins Somewhere
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Scale-Up vs Scale-Out: Why Every Language Wins Somewhere

#programminglanguages #systemdesign #scale #rust
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7 min read
From Locks to Actors: The Four Pillars of Modern Concurrency
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From Locks to Actors: The Four Pillars of Modern Concurrency

#concurrency #systemdesign #go #erlang
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8 min read
RPC vs NATS: It's Not About Sync vs Async — It's About Who Owns Completion
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RPC vs NATS: It's Not About Sync vs Async — It's About Who Owns Completion

#distributedsystems #rpc #nats #grpc
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7 min read
Go Context in Distributed Systems: What Actually Works in Production
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Go Context in Distributed Systems: What Actually Works in Production

#go #context #concurrency
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8 min read
Go's Concurrency Is About Structure, Not Speed: chan and context as Lifecycle Primitives
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Go's Concurrency Is About Structure, Not Speed: chan and context as Lifecycle Primitives

#go #concurrency #channels
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8 min read
Why Go Handles Millions of Connections: User-Space Context Switching, Explained
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Why Go Handles Millions of Connections: User-Space Context Switching, Explained

#go #concurrency #distributedsystems
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6 min read
Claude Code Deep Dive Part 4: Why It Uses Markdown Files Instead of Vector DBs
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Claude Code Deep Dive Part 4: Why It Uses Markdown Files Instead of Vector DBs

#claudecode #memory #agents #openclaw
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7 min read
Claude Code Deep Dive Part 3: The 5-Level Compression Pipeline Behind 1M Tokens
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Claude Code Deep Dive Part 3: The 5-Level Compression Pipeline Behind 1M Tokens

#claudecode #contextengineering #agents #compression
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8 min read
Claude Code + Codex Plugin: Two AI Brains, One Terminal
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Claude Code + Codex Plugin: Two AI Brains, One Terminal

#claudecode #codex #agents #openai
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5 min read
Claude Code Deep Dive Part 2: The 1,421-Line While Loop That Runs Everything
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Claude Code Deep Dive Part 2: The 1,421-Line While Loop That Runs Everything

#claudecode #agents #architecture #systemdesign
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7 min read
Claude Code Source Leaked: 5 Hidden Features Found in 510K Lines of Code
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Claude Code Source Leaked: 5 Hidden Features Found in 510K Lines of Code

#claudecode #anthropic #agents #security
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5 min read
The AI Stack Explained: LLM Talks, Program Walks
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The AI Stack Explained: LLM Talks, Program Walks

#ai #llm #mcp #agents
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6 min read
Why Your "Fail-Fast" Strategy is Killing Your Distributed System (and How to Fix It)
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Why Your "Fail-Fast" Strategy is Killing Your Distributed System (and How to Fix It)

#distributedsystems #redis #systemdesign #backend
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9 min read
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