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ExternalSoftware Engineering
DEV Community

Why Dynamic Rotating Proxies Are Burning 30% of Your Budget (And How to Architect a Fix)

Hey dev community, If you are running programmatic SEO networks, web scrapers, or scaling data pipelines for LLM ingestion, you are probably relying heavily on Rotating Proxies. The pitch from proxy vendors is always the same: "We give you millions of residential IPs, and we rotate them automatically on every request so you never get blocked." Sounds perfect, right? But last month, while auditing our Django-based scraping manager, I noticed a painful anomaly: our proxy bill was creeping up by

webdevpythondjango
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ExternalSoftware Engineering
DEV Community

Hello DEV! I'm a Lawyer, Startup Consultant, and Product Builder

Hi everyone, I'm Doris, a lawyer and startup consultant from Nigeria with a growing interest in product management, AI, and technology-driven solutions. Over the years, I've worked in legal practice, human rights, governance, and startup advisory. Today, I'm focused on helping founders build products and businesses that are scalable, compliant, and user-centered. I'll be sharing lessons on startups, product strategy, legal risk, AI, and entrepreneurship. Looking forward to learning and contribut

aidevopsautomation
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ExternalSoftware Engineering
DEV Community

Taming Error Handling in Laravel with Custom Exceptions

When you're building a Laravel application, it's tempting to reach for abort() whenever something goes wrong, let's take a flight booking app. trying to check a user in to a flight: abort(422, 'Passenger has already checked in.'); abort(403, 'Boarding has closed for this flight.'); abort(404, 'Booking not found.'); For a quick controller method, this feels fine. But as your application grows — with services, actions, jobs, and console commands all sharing the same business logic — those abort()

laravelerrors
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ExternalSoftware Engineering
DEV Community

Bash: Brace expansion

Somewhere in my storage I keep PDF files with random content just for fun, for about six years now. The funny thing was, I was revising its owner/group/user permissions and some of them were with a different permission than the usual. A simple chmod command like the following would do the trick: chmod 600 file01.pdf file05.pdf file09.pdf But, as a developer, some times we just have that itch to spend 30 minutes trying an easier way of doing something that usually takes 20 seconds. Just for the

bashlinuxprogramming
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ExternalSoftware Engineering
DEV Community

When SuSiE Says '95% Confident', Is It?

Benchmarking the Honesty of Fine-Mapping Credible Sets Fine-mapping has a promise built into its output, and almost nobody checks whether the promise is kept. When you run SuSiE on a GWAS locus, it hands you a credible set: a small group of variants that, at a stated confidence level like 95%, should contain the true causal variant. That 95% is a claim about reality. Among all the loci where SuSiE reports a 95% credible set, the true causal variant should be inside the set 95% of the time. Is it

bioinformaticsstatisticsdatascience
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ExternalSoftware Engineering
DEV Community

The Agent Is the Harness, Not the Model — and Why That Reorganizes Software Engineering

TL;DR — Every AI system decomposes into two things that matter: the model and the harness (the code wrapping it). Claude Code, GitHub Copilot, ChatGPT — those are harnesses, not models. Right now only frontier labs build both halves. That won't last. As harness engineering becomes its own discipline — domain-specialized, model-agnostic — it absorbs most of what we currently call software engineering. The app store becomes the agent store, and our job shifts from writing code for humans to writin

aiagentssoftwareengineering
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