Auto-aggregated global tech articles · 445 posts
Building a toy Retrieval-Augmented Generation (RAG) prototype takes less than an afternoon using LangChain or LlamaIndex. Taking that system into production—where it must process thousands of enterprise documents, enforce multi-tenant access controls, eliminate hallucinations, and keep API token bil
Why interviewers ask hash map questions They want to see if you can: Trade a little extra memory for much faster runtime. Recognise repeated lookups. Avoid nested loops. A common interview progression is: Candidate writes O(n²) → Interviewer asks, "Can you optimise this?" → Expected answer:
Why Flutter is the Strategic Choice for Mobile MVPs For early-stage startups and businesses launching a mobile product, speed-to-market and capital efficiency dictate survival. Hiring separate native iOS (Swift) and Android (Kotlin) development teams doubles your engineering payroll, creates commu
Your tracker has states for work that has not started, work in progress, and work that is finished. Ask it to express "this was delivered, reviewed, and sent back because it solved the wrong problem" and most of them quietly collapse that into moving the ticket back to In Progress. That collapse th
Why Core Web Vitals Dictate Search Traffic & Revenue Google's Core Web Vitals are not optional academic benchmarks—they are formal search ranking signals that directly influence where your web application appears in organic search results. Slow page delivery increases bounce rates, drains Goog
Why Auditing Beats an Expensive Rewrite When a Node.js REST API starts throwing 504 Gateway Timeouts or dragging under user spikes, engineering teams frequently propose the nuclear option: "Let's rewrite the entire backend in Go or Rust." In 90% of real-world production cases, the runtime is not
Every time I start setting up local staging environments or testing SQL queries, I run into the same problem: generating dummy data for complex database schemas is annoying. Existing tools usually generate flat CSV files. That works for a single table, but as soon as you have foreign keys (like use
Last year, I watched a client burn through $5,000 in LLM credits trying to automate their Shopify product descriptions. The agent, built on a custom LangGraph setup, kept hallucinating product features and generating descriptions that sounded like they were for a completely different store. It was a
A while back, I had to retract one of my own results. A model I'd built was posting a validation score I was genuinely proud of. Then I looked closer: the test set shared rows with the training data. The moment I evaluated on a truly independent set, the improvement vanished. It wasn't a better mod
TL;DR: A report tells you what a session says happened. The artifact on disk and a fresh rerun tell you what you can check. The parent slice log is where the distinction was recorded. Your agent says the gate passed. Before you approve it, can you point to the artifact and rerun the command without
Every auto-apply tool I have taken apart marks an application "sent" at the same moment: the instant it dispatches the click. That is a read-back of our own input, and it is the weakest signal in the whole pipeline. The four signals that look like proof and are not I shipped all four o
A bonus capability for FieldKit, the field-notes PWA I built across this series (code on GitHub). The series wrapped at part 7, but I said the app didn't have to be done — and voice is too good a fit for a field tool to skip. Out in the field your hands are busy, so: dictate a note by talking, and h
When you join a running project — as a lead, an architect, or part-time — your hands itch to start fixing things right away. There it is, the crooked deploy; the database without indexes; the service nobody has touched since last year. Stop. For the first week you fix nothing at all. This article c
Every time I started a new session with Claude, I found myself repeating the same instructions. Which commands to use, how I wanted the code written, what to test. I kept copy-pasting the same saved message from my notes whenever I started a new chat. That’s when I found out about the CLAUDE.md fi
DeepSeek V4 is cheap, fast, and — for a lot of developers — impossible to buy. Not because of the model. Because of the money. If you live in Nigeria, Indonesia, Vietnam, India, Pakistan, Egypt or most of Latin America, the blocker is almost never "is this model good enough". It's "my card got decl
I don't want an AI agent to turn a keyword into another 1,500 words of plausible advice. I want it to inspect the site, find a question worth answering, read the relevant documentation, and give me an article whose claims I can check. Hermes Agent plus Google Search Console gets you part of the way
From graduation project to production: building a Branded Content Management System Branded content is the kind of advertising that doesn't look like advertising. Instead of a banner, an advertiser gets a full article on a publisher's website, written to fit in with the rest of the content. Sounds
Hi Dev.to! Today marks a significant milestone in my software development journey. For a long time, I worked in the high-level web development ecosystem using Python and Django. It was a great and interesting start, but I realized I’m more drawn to deeper systems—understanding how things work under
I'm a dev. Last month I found an archive on an old drive. A 12-year-old project. No README. No tests. Just raw logs. I tried to recompile it. It worked. Build: Passing. But the system started to act weird. High CPU. Processes I didn't remember launching were running in background. So I did what
The test suite was green, as it had been for months. The migration ran clean on H2, the repository tests passed, the CI pipeline gave its usual thumbs up, and the change went out. A few hours later, a batch job that touched category records started failing in production with an error none of us reco
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