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ExternalSoftware Engineering
DEV Community

Stop Shipping Broken Env Config: Comparing 4 TypeScript Validators

I've built enough projects to know that environment variable validation isn't glamorous — until your app silently uses undefined as a database URL. There are a bunch of tools for this now, and picking the wrong one means either fighting your tool or fighting your own config. Here's how they stack up. Tool Size Dependencies CLI Framework support CtroEnv under 5 KB gzip 0 Yes Node, Vite, Next.js Zod + manual 50 KB+ 0 (Zod itself is ~13 KB gzip, plus your glue) No You build it envalid 8

typescriptnodejavascript
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ExternalTechnology Trends
The Verge Tech

Nvidia says its AI data center design runs hotter to use a lot less water

Public pushback against data centers has emphasized their water and energy consumption, and now Nvidia is highlighting its claim that the Rubin generation reference design for a fully liquid-cooled data center has "eliminated massive amounts of power usage and pretty much all water usage." Still, it doesn't address all of the concerns around AI data centers, including during their construction, and for the power generation requirements of the massive facilities. Also, as Gizmodo points out, Nvid

The Verge TechRead original
ExternalSoftware Engineering
DEV Community

How to make an AI research agent label facts vs inferences — a deterministic provenance pipeline

Originally published on hexisteme notes, part of a series on building and running an AI agent fleet. To stop an AI research or RAG agent from presenting its own inferences as retrieved facts, split the work so the LLM never decides what is a fact: let the LLM only extract and summarize, and let a deterministic, non-LLM pipeline do all scoring, cross-checking, and labeling. Tag a claim FACT only when a rule is satisfied — corroboration by ≥2 independent sources, or one official API — and downgrad

aillmrag
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ExternalSoftware Engineering
DEV Community

how do you get real-world experience before your first job?

hello ! im a CS student (2nd year) and ive been look around for some tech jobs. any kind because honestly i just want a tech related job (i <3 tech). but the problem is,so many jobs/places want you to have experience in the real-world but literally no one is willing to offer it. they want minimum 3-years experience. im considered learning some other programming languages that they require for jobs that could be useful. however, i want to practice what ive learnt in a real job setting. of course

programmingcareerdiscuss
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ExternalSoftware Engineering
DEV Community

Running Async Python Inside Celery Is Harder Than You Think.

The problem is straightforward to state and surprisingly hard to solve correctly. Celery workers are synchronous. Celery spawns prefork worker processes, and when a task arrives, it calls your task function like this: task_function(*args, **kwargs). It expects a return value. It blocks the worker thread until it gets one. It does not know or care that you wrote async def. But modern Python services are async. FastAPI is async. SQLAlchemy 2.0 is async. httpx, aiohttp, asyncpg the entire interesti

architecturebackendprogramming
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ExternalSoftware Engineering
DEV Community

Building a Design System Without Recreating CSS

One of the easiest traps to fall into when building a design system is accidentally recreating CSS. At first, it seems harmless. You add a few utility classes. Then a few responsive options. Then a few layout helpers. Then a few exceptions. Before long, you've built an entirely new syntax for doing the exact same thing CSS already does. I've become increasingly interested in a different approach. Not replacing CSS. Not hiding CSS. Creating a layer above CSS that focuses on intent. Developers lov

webdevcssarchitecture
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ExternalSoftware Engineering
DEV Community

Why Daily Transaction Volume is the Wrong Number to Quote in System Design Interviews

The Mistake Most Candidates Make The interviewer nods. But that number just told them very little about whether you can actually engineer the system. Leading with total daily volume is the most common trap candidates fall into. It sounds like a big, impressive number. But in reality, quoting a daily aggregate proves you are looking at the system through a marketing lens, not an engineering one. What Actually Matters: The Shape of the Workload Peak TPS (Transactions Per Second): The absolute high

systemdesignbackendengineeringinterviewprep
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