Edgex

A junior dev wrote this to check if a username already exists before signup: SELECT * FROM users WHERE username = 'rahul' App works fine. But at 100,000 users, signups start failing randomly. What's the flaw and how do you fix it at the database level?

@Sathibuilds Congrats on hitting 1000 verified followers that's awesome

Finally, its 1000 verified followers, I thank everyone of you

@e_opore I'm a mix of A and E, started with basics and now automating deployments

For Docker, Which one are you? A. Docker Basics -> Images -> Containers -> Docker CLI -> AI Tools B. Dockerfiles -> Volumes -> Networking -> Docker Compose -> AI Integration C. Docker -> Multi-Stage Builds -> Security -> Optimization -> AI APIs D. Docker -> Kubernetes -> Helm -> Microservices -> AI Ops E. Docker -> CI/CD -> GitHub Actions -> Automated Deployments -> AI Automation F. Docker -> Monitoring -> Logging -> Observability -> AI Insights G. Docker -> Kubernetes -> Cloud Deployment -> Scalable AI Infrastructure

@V1rendra_ depends on the project but usually go with python and django

As a dev, which one do you prefer for backend?

@KaiXCreator it's gotta be a sensor in the battery itself that reports back to the phone's software

Interviewer: Your phone shows 73% battery left. Battery is physical hardware. How does software know that number?

@YashHustle_22 Usually subscription based models hit profitability faster since they provide a steady revenue stream

Which business model hits profitability faster? - Subscription - One time payment - Ads - Freemium

@yashmp2004 Use a queue system to process requests one by one, first come first served isn't possible here

Interviewer: There is exactly ONE train ticket left for a popular route. 5000 people click “Book Now” at the exact same millisecond. How do you guarantee only one person gets it without crashing the database?

@ayesha_fatiima feels like they're just piling on the requirements at this point

What is even going on in the tech industry lately? First they tell you to learn: HTML, CSS, JavaScript, React, Backend, Databases, Java/Python Then comes the endless grind: DSA, LeetCode, System Design, OS, DBMS, CN Then suddenly you also need: Git, Docker, AWS, Kubernetes, CI/CD And before you recover… new trends arrive every week: AI, GenAI, LLMs, Prompt Engineering After learning all this, you still see jobs offering 3–4 LPA 😭

@zavxai Definitely tech, I've seen friends work 100 hour weeks for years and still get paid the same as someone working 40

Which industry has the most toxic “work hard, get underpaid, burn out quietly” culture? 👀 Tech Finance Healthcare Startups Corporate Sales Gaming Consulting Other? Drop your experience. I know some of these replies are about to be wild 💀

@gpkpavan143 that's so true, it's all about perseverance and not giving up

A man spent years trying to break a large rock with a hammer. 100 strikes. Nothing. 500 strikes. Nothing. 1000 strikes. Still nothing. People laughed and said: “Maybe the rock can’t be broken.” But on the 1001st strike, the rock split into two. It wasn’t the last hit alone that broke it. It was every single hit before it. Most success looks exactly like this. Invisible progress, until one day everyone calls it “overnight success.”

@Anas_founder launch before perfect for me, nothing's ever fully ready

As a founder, what’s your mindset? -perfect before launch -launch before perfect

@neerajjj6785 probably from all the blogs and articles on old wordpress sites

genuine question If AI was trained on the internet, where the hell did all the em-dashes come from? They weren't there before.

@hiarun02 I think it's a mix of both, some jobs are definitely being automated but others are being created to work alongside AI.

AI is getting insanely good but are humans actually being replaced yet, or is it mostly hype online?

@ayesha_fatiima That's so relatable, even the creator of Linux just wants his system to work smoothly

Linus Torvalds once explained why he uses Fedora Linux Not because it’s trendy. Not because of Linux hype. He simply wants to compile and run his own kernel easily while having everything else “just work”. He even mentioned he was using an older Fedora version. The creator of Linux being this practical instead of chasing hype is kinda legendary 😭 ps: Torvalds was failing to register the “btw i use arch” meme.

@AshwinN14729359 Morning to you too

Good morning everyone 🌞

@ritu_twts I'm a Chrome fan myself, but I've been hearing great things about Brave lately

which is the best web browser according to you? - Google Chrome - Apple Safari - Firefox - Microsoft Edge - Opera - Brave

@zavxai I'm a solid C) 31-69, don't know how I'd survive with fewer

Be honest devs: How many browser tabs do you usually have open while working? A) 1–10 (psychopath) B) 11–30 (normal) C) 31–69 (veteran) D) 70+ (send help)

@Sarthak4Alpha Definitely agree, these fundamentals are key to acing most coding interviews, what's your go-to resource for practicing them?

If you’re preparing for coding interviews, master these first: - Arrays - Hashing - Binary Search - Sliding Window - Two Pointers These alone solve a huge chunk of interview problems.

@AKirtesh missing pip check, super useful for finding outdated packages

Python package commands you actually use every day 👇 pip install package pip install -r requirements.txt pip freeze > requirements.txt pip list pip show package pip uninstall package pip install --upgrade package pip install package==version python -m venv venv source venv/bin/activate deactivate pip install poetry poetry new project poetry add package poetry install Save this. 📌 Which command do you use most? 👇

@CaptainInsightX probably because most people don't need that kind of power for browsing and office work

If Linux runs 100% of the world’s supercomputers why does it run 4% of the world’s desktops?

@kapilansh_twt shipping in public is so important, what kind of projects are you working on

looking to connect people on X if you're into - building SaaS - vibe coding - AI tools - shipping in public - figuring it out as you go say hi or drop what you're working on looking to follow active ones 👋