DEV Community • 2026-07-26 18:06

Tracing Voice AI is Hard: How I Instrumented Streaming LLMs with OpenTelemetry and SigNoz

Voice AI agents are magical until they start lagging. Suddenly my Groq-powered voice assistant started taking 3 seconds to respond and standard APM tools were useless. They could tell me that an HTTP request was open, but they couldn’t tell me if the bottleneck was the Speech-to-Text (STT) transcription, the LLM’s Time to First Token (TTFT), or the Text-to-Speech (TTS) synthesis. Here’s how I di...

DEV Community • 2026-07-26 18:03

How to Build a Platform Engineering Team & Internal Developer Portal: Lessons from Modern Engineering Organizations

Platform engineering has become one of the fastest-growing disciplines in software engineering. As organizations scale, the number of services, pipelines, cloud resources, and operational tools grows just as quickly. Without a common platform, every product team ends up solving the same infrastructure problems independently. I've found that successful platform engineering initiatives don't begin ...

DEV Community • 2026-07-26 18:02

MCP Deep Dive, Part 12: Building MCP Servers in C# and .NET 9 — The SDK, DI, and Native AOT

We've built servers, clients, tools, auth, and governance across this series — all in C#, without ever slowing down to look at how the .NET tooling makes it pleasant. This part does. If your backend is already .NET, an MCP server turns out to be one of the highest-leverage things you can build: a thin, attributed, DI-native surface over the domain services you already own. This is Part 12 of a ...

DEV Community • 2026-07-26 18:01

SQLite vs PostgreSQL: Choosing the Right Database

SQLite vs PostgreSQL: Choosing the Right Database tags: database, sql, tutorial, programming tags: database, sql, tutorial, programming Imagine you're building a new web application, and you're faced with a crucial decision: choosing the right database to store your data. You've narrowed it down to two popular options: SQLite and PostgreSQL. But which one is right for your proje...

DEV Community • 2026-07-26 18:00

Optimizing Large-Scale MongoDB Aggregation Pipelines: A Deep Dive into Performance Strategies

Originally published on tamiz.pro. MongoDB's aggregation framework is a powerful tool for processing and transforming data. However, as datasets grow and pipelines become more complex, performance can degrade significantly. Optimizing large-scale aggregation pipelines requires a deep understanding of MongoDB's execution engine, index strategies, and data modeling choices. This article will delve ...

Hacker News: Front Page • 2026-07-26 17:58

It's not empowering to hand off the details

Article URL: https://davidnicholaswilliams.com/its-not-empowering-to-hand-off-the-details/ Comments URL: https://news.ycombinator.com/item?id=49060592 Points: 9 # Comments: 1

DEV Community • 2026-07-26 17:51

The Delegate Pattern: Run Claude Code + Codex + Gemini in Parallel — Zero-Cost Rate Limit Bypass for Multi-Agent AI

Why I Built This The motivation was simple: AI stops. Frequently. When running large tasks with Claude Code, you hit Anthropic's rate limits fast. When you add more sub-agents to run in parallel, Claude's own context gets polluted and performance degrades. I also tried a real-time message bus (agmsg). Multiple CLI windows throwing messages caused confusion. SSE connections dropped, lo...

Hacker News: Front Page • 2026-07-26 17:51

How AST-grep Rewrote Tree-sitter in Rust and Made It 30% Faster

Article URL: https://astgrep.com/blog/tree-sitter-rust-rewrite Comments URL: https://news.ycombinator.com/item?id=49060509 Points: 8 # Comments: 0

Hacker News: Front Page • 2026-07-26 17:49

French firefighters face 'pyrocumulonimbus' for first time

Article URL: https://www.france24.com/en/live-news/20260726-french-firefighters-face-pyrocumulonimbus-for-first-time Comments URL: https://news.ycombinator.com/item?id=49060495 Points: 10 # Comments: 1

DEV Community • 2026-07-26 17:49

NestJS v12.0 vs. Ditsmod v3.0: Application Lifecycle and Graceful Shutdown (Part 5)

Welcome to Part 5—the grand finale of our "NestJS v12.0 vs. Ditsmod v3.0" series! Over the last four articles, we have unpacked the strict Dependency Injection hierarchies, Native ESM migrations, compile-time Extension Groups, and powerful Metadata Reflection APIs of these two enterprise Node.js frameworks. But building a robust enterprise application isn't just about how it starts up or how it ...

DEV Community • 2026-07-26 17:43

README.md explains the project to humans. AGENTS.md explains it to AI coding agents. I think it'll become a standard file for teams using AI-assisted development. Are you using one yet?

DEV Community • 2026-07-26 17:43

Microservices: The Part Nobody Puts in the Slide Deck

I've lost count of how many architecture diagrams I've seen where microservices are drawn as a bunch of clean little boxes with arrows between them, everything labeled, everything tidy. Reality never looks like that. Reality looks like a whiteboard somebody gave up on halfway through, with three arrows crossing each other and a sticky note that just says "ask Felipe." That gap between the diagram...

DEV Community • 2026-07-26 17:42

Building AI Agents with the GO Agent Development Kit (ADK) — 2026 Edition (v2)

Summary of 2026 Updates (v2) This updated edition incorporates several key architectural improvements, production hardening, and dependency upgrades over the initial release: Go ADK Core Upgrade: Upgraded from v0.2.0 to v1.5.1 (google.golang.org/adk), delivering enhanced model context handling and agent execution pipelines. Google GenAI SDK Upgrade: Upgraded to v1.65.0 (google.golan...

DEV Community • 2026-07-26 17:41

Claude Opus 5 vs Opus 4.8, Measured: Same Price, 3x Apart

Claude Opus 5 and Claude Opus 4.8 bill the same $5 per million input tokens and $25 per million output, and on identical prompts the default Opus 5 configuration cost 3.1x more. The reason is adaptive thinking: Opus 5 thinks by default, bills the thinking as output, and never shows it to you. One request setting closes the gap to exact parity, and it is a setting the bigger Fable 5 refuses to acce...

DEV Community • 2026-07-26 17:40

Tracing a multi-agent LLM system: otel-swarm and a SigNoz dashboard pack

The problem A single LLM call is easy to reason about. You send a prompt, you get tokens back, you log the latency and you move on. A swarm is not that. Four or five agents run, some in parallel, each with its own model. One of them times out and quietly falls back to a cheaper model. A critic agent reads the output and sends work back for another round. When the whole thing takes 40 s...

Lobsters • 2026-07-26 17:39

Forth Moving Lisp Moving Forth

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DEV Community • 2026-07-26 17:31

Andrej Karpathy's "Deep Dive into LLMs like ChatGPT"

I wanted to dive deeper and learn more about the underlying architecture and function of LLMs. I discovered Andrej Karpathy's YouTube video, "Deep Dive into LLMs like ChatGPT" to be extremely informative and also full of resources to keep learning on my own. As a software engineer, I use Claude Code to write code, generate architecture diagrams, investigate issues, complete Jira tickets, u...

Hacker News: Front Page • 2026-07-26 17:29

How to Write English Prose

Article URL: https://thelampmagazine.com/blog/how-to-write-english-prose Comments URL: https://news.ycombinator.com/item?id=49060295 Points: 3 # Comments: 0

DEV Community • 2026-07-26 17:29

Mastering GA4 for Mobile Apps — From Events to Business Insights

Integrating Firebase Analytics is an excellent first step toward understanding how users interact with your application—but it's only the beginning. The real value comes from Google Analytics 4 (GA4), where raw events are transformed into meaningful reports, dashboards, funnels, audiences, and business insights. GA4 helps developers, product managers, and marketers answer questions like: How a...

DEV Community • 2026-07-26 17:28

Best Data Grid for Python Dash in 2026

Dash gives us a way to put Python data in a browser. There is a lot of stuff we can add there, but main focus of this article is data grids, its the most common request for us. I work on RevoGrid, so I know that option best. But RevoGrid is not the only choice, and different grids suit different projects. Here is the short, practical version of how the main Dash data grids compare in 2026. ...