Arch-specific S...
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Oct 15
Arch-specific SIMD in Go
Go 1.26 gave amd64 an experimental SIMD API. Go 1.27’s headline change: the same API now lands …
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Punit NaranWelcome to Golang4U, your one-stop platform for everything Go.
Whether you’re a beginner just starting with Go or an experienced developer looking to share knowledge, Golang4U has everything you need — from learning resources and community events to a full-featured playground and marketplace.
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Go Playground
Write, compile, and run Go code directly in your browser. No backend required. Experience our new frontend-only IDE powered by WebAssembly and Monaco Editor.
9 min read
Better HTTP/1 c...
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Oct 15
Better HTTP/1 connection reuse
100 sequential http.Get calls against index.golang.org, HTTP/1 only: 710 ms on Go 1.26, 150 ms on Go …
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Punit NaranClaude Code / A...
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Oct 15
Claude Code / AI Shows Potential For Reverse-Engineering Hardware For Linux Support
Claude Code Reverse-Engineered a Scanner: the 80% of hardware RE that is tedious …
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Punit NaranCode That Passe...
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Oct 15
Code That Passes Every Test Can Still Break the Next AI Agent That Touches It
Code that passes every test can still break the next AI agent that touches it
The New …
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Punit NaranDesign Patterns...
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Oct 15
Design Patterns in Go: The Once-per-Lifetime Patterns That Actually Pay Off
Every Go developer has read Design Patterns (Gang of Four, 1994) and thought “this is …
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Punit NaranDocker, K8s, an...
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Oct 15
Docker, K8s, and Terraform: The Go Ops Triad That Actually Ships
The three tools every Go deploy runs on are all written in Go: Docker builds the image, Kubernetes …
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Punit Naran