Backups aren’t optional. If you run PostgreSQL, Jenkins, or any Linux server, you *will* lose data someday. This guide shows practical backups with pg_dump, tar, scp, and cron 👇 https://t.co/RObEs0WoRP

https://t.co/Dgwtt2z6Sc tip #1: Rooms are server-side only. Clients never “see” rooms — they just join names. Your auth logic defines privacy, not https://t.co/Dgwtt2z6Sc.

RAG isn’t magic — it’s a smarter way to make AI answer with real facts. Instead of guessing, the model searches your data, pulls what matters, and then generates. Cleaner answers. Less hallucination. Simple idea, huge impact. #AI美女 #RAG

When it is about using postgres in golang i prefer the sqlx and squirrel they work very well together sqlx solves my headache to Scan rows and putting in right pointer and squirrel does query building part What are your preference in golang ecosystem? #golang #sqlx #postgres

Jumping from Node.js to Python? Use uv — it feels way closer to npm than anything Python had before. Quick tips: 1. `uv venv` = your new project init 2. `.venv` is basically node_modules (don’t commit it) 3. `uv pip install <pkg>` is your npm install moment #python

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Jest isn’t just for React — it’s a powerhouse for clean, predictable JS testing. Quick tips: 1. Test pure functions first — they give the biggest ROI 2. Mock only what matters (over-mocking kills clarity) 3. Snapshot tests are helpful, but don’t rely on them blindly #Jest

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Python feeling slow? Stop guessing where the bottleneck is. Tips: 1. Scalene shows CPU vs memory hotspots separately 2. It highlights the exact slow lines 3. AI suggestions often fix 80% of issues 4. Use --html for a cleaner report #Python #Performance #Scalene

Tip: Real concurrency isn’t “run everything at once.” It’s “run only as much as your system can handle.” Use asyncio.Semaphore to throttle async tasks. #Python #AsyncIO

`asyncio.gather()` is the easiest way to fire multiple coroutines concurrently. Use it when you want "run these at the same time and tell me when all are done." #PythonTips #Async

Tip: `await` blocks your coroutine. If you're waiting on multiple I/O tasks, switch to `asyncio.create_task()` and run them *together*, not one by one. #Python #AsyncIO

Underrated trick: promisify DOM events. Want your async function to “pause” until a button click? Wrap the event in a Promise. Beautiful control flow. #JavaScript #Frontend

Anti-pattern alert: Don’t wrap synchronous logic in a Promise. It doesn’t make the code async — it just makes it confusing. #JavaScript #CleanCode

JS Promises aren’t just for fetch() calls. They’re perfect for async flows, multi-step sequences, ✨and✨ user-driven pauses. If your async logic feels messy, Promises probably fix it. #JavaScript #webdev

⚙️ useSyncExternalStore keeps React in sync with outside state (like Redux, Zustand, or browser APIs). It’s the key to smooth, tear-free renders in concurrent React. #React #StateManagement #Hooks

🧩 useDebugValue is your friend when publishing hooks. It shows meaningful labels in React DevTools — so others see more than “Anonymous Hook”. Small touch, big dev-experience boost. #ReactJS #DX #Frontend

⚛️ React tip: useImperativeHandle lets you expose only what the parent needs from your component — not the whole DOM node. Controlled power for library authors. #ReactJS #WebDev

💡 Go Tip: Your io.ReadCloser (like an http.Response.Body) is a remote control to a data stream, not the data itself. You're holding the spigot, not the 10GB water pipe. Think interfaces, not concrete bytes. #golang #go

🐹 Go tip: `io.ReadCloser` isn’t just a reader — it's a contract to clean up resources too. If you read but don’t close, you're leaking. Always `defer rc.Close()` the moment you get it. #Golang #Backend #SoftwareEngineering