Corentin GS

Corentin GS

@corentings.dev

Teaching Go for cloud-native microservices to backend beginners. Self-taught developer with 5 years of experience. Making the practical course I wish existed.

37 followers57 following222 posts

These languages won’t get you a dev job tomorrow. But they’ll teach you how to think, adapt, and face any coding challenge. Hardcore? Sure. But you don’t become a Jedi without sacrifice. #Programming #CodeNewbie #LearnToCode #SoftwareEngineering

How Go's context package transforms chaotic goroutine sprawl into orchestrated control flow. From resource leaks to graceful cascading cancellations—context is the unsung hero of distributed Go systems. #golang #programming

DDD isn’t an architecture. It’s a mindset. • Business logic becomes clear • Code reads like user stories • Bugs get squashed fast • Features map to reality It’s the difference between organizing code vs. understanding the business. #cleancode

If you’re still scattering business logic across 15 files… Read this. DDD means: • Business in one place • Fewer bugs • Clearer features • Faster onboarding It changed how I code and think. #ddd

MVC shows you where to put code. DDD shows you what it should say. • One place for business logic • Domain-first thinking • Less glue code, more clarity I’d trade 5 years of patterns for 1 year of DDD. #domainmodeling

Context leaks in Go are silent killers. They don’t crash your app — they slowly drain it. Unreleased goroutines = invisible technical debt. Fix it before it breaks you. #golang #backend

The truth? Rust is brilliant. But Go is a cheat code. • Idiomatic Go in 2 weeks • Real-world output day one • No fighting with the compiler Want velocity? Go wins. Rust’s complexity isn’t worth it for most teams. #programming

Most devs learn MVC first. Big mistake. You learn structure before meaning. DDD flips it: • You code business, not boxes • Features shrink from days to hours • Logic finally has a home Learn the language before the grammar. #softwaredesign

You’re not building an OS. You’re building CRUD APIs. Stop over-engineering: • Go gets new hires productive in days • Rust drops team velocity by 50% • Most apps don’t need a borrow checker Choose speed over struggle. #devlife

The most brilliant engineers I know don’t always pick the “best” tech. They choose what yields the best results quickly. • Go reads like English • Devs ship in weeks • Hiring is easy • Teams move fast Rust? It slows you down for marginal gains. #softwareengineering

Choosing Rust for CRUD services is like buying a jet to drive to work. Sure, it’s fast. But you’ll burn time, money, and team morale just trying to park it. Go is simpler, faster, and way more practical. You can use the right tool for the real-world job. #backend

Stop trying to write "perfect" code as a beginner. My early Go app: 6 layers, 3 frameworks, total mess My rewrite: Just stdlib, 10x faster Your "failures" teach more than tutorials. #coding #webdev #buildinpublic

Want to build stunning CLI tools in Go? Use Bubbletea. • Beautiful text UIs • Elegant architecture • Fun to use Make your terminal apps feel like magic. #cli #golang #opensource

Tired of "works on my machine"? Use Dev Containers. • Instant dev environment setup • Reproducible across the team • All dependencies pre-installed No more setup hell. Just code. #devcontainers #docker #devops

The best messaging system I’ve used in 2025: NATS. • Lightning-fast pub/sub • Lightweight & reliable • Supports clustering + persistence Easier than Kafka. More robust than Redis. Built for scale. #eventdriven #golang #scalability

Go-task made me ditch Makefiles for good. • YAML-based task runner • Dependency-aware • Cross-platform • Built-in variable support Cleaner builds, easier automation. Perfect for Go projects. #golang #buildtools

Debugging microservices used to be painful—until Jaeger. • Full request tracing • Visual bottleneck mapping • Instant visibility into distributed systems If you're scaling services, this is non-negotiable. #microservices #observability #devops

The single best Go code quality tool: golangci-lint. • Runs 40+ linters • Catches bugs pre-commit • Flags performance issues • Integrates seamlessly into CI/CD Set it up once. Let it guard every PR. #golang #devtools

The six #backend tools that transformed how I build production systems in 2025. After 4 years of coding 7/7, these are the non-negotiable tools in my stack. Thread 👇

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Bonus: Bubbletea - Go's elegant TUI framework for building beautiful command-line tools users want to use. #GoLang #BackendDev #DevTools #Microservices #SoftwareEngineering #Programming #TechStack What's your essential backend tool? 👇

The six #backend tools that transformed how I build production systems in 2025. After 4 years of coding 7/7, these are the non-negotiable tools in my stack. Thread 👇

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Dev Containers: Consistent development environments that eliminate "works on my machine" forever. Reproducible, isolated environments with all dependencies pre-configured. Your entire team runs identical setups instantly.

NATS: The messaging system scales without complexity. Lightweight, high-performance pub/sub with built-in clustering, persistence options, and incredible throughput. Simpler than Kafka, more reliable than Redis.

The six #backend tools that transformed how I build production systems in 2025. After 4 years of coding 7/7, these are the non-negotiable tools in my stack. Thread 👇

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Jaeger: Distributed tracing that shows you exactly where your microservices are failing. Essential for debugging complex systems - visualizes request flows, identifies bottlenecks, and makes mysterious performance issues crystal clear.

go-task: A modern alternative to Make that makes sense. YAML-based task runner with dependency management, cross-platform support, and built-in variable interpolation. Perfect for automating build pipelines and development workflows.

The six #backend tools that transformed how I build production systems in 2025. After 4 years of coding 7/7, these are the non-negotiable tools in my stack. Thread 👇

golangci-lint: The ultimate Go code quality enforcer that catches bugs before they ship. Runs 40+ linters simultaneously, finds performance issues, enforces best practices, and integrates seamlessly into CI/CD pipelines.

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Want to master Go concurrency? Stop memorizing syntax. After 4 years of production Go: The real secret isn't about knowing every feature - it's about knowing when NOT to use them. A thread on building robust concurrent systems 🧵👇 #golang #programming

Most devs over-engineer because they start with tools, not problems. Start with why, design with clarity, build with boring code. That’s the Fundamentals-First way.

💥 Rewrote an old Go app I built as a junior. Back then: 6 layers, 3 frameworks, benchmark-driven madness. Now: Just stdlib, clear logic, no fluff. ✅ 10x faster ✅ Half the code ✅ Zero confusion Lesson? Simplicity scales. Start with fundamentals.

Most Go performance issues aren’t about your code. They’re about your setup. • No pooling = more GC • More GC = slower app • Slower app = bad UX Fix it with resource pooling. Easy win.

Spinning up a new DB connection every time? Stop. • Pools cut latency • Reduce memory allocations • Improve scalability Reuse expensive resources. Your Go app will thank you.