DEV Community • 2026-08-02 22:14

I Built Kikar — An AI Messaging Platform That Creates Digital Versions of People

For the last few months, I've been working on Kikar, an AI-powered social messaging platform with a simple goal: What if every user could have an AI version of themselves that learns from conversations and can chat in their own style? Instead of building another generic chatbot, I wanted to explore the idea of AI personalities that evolve over time. Tech Stack Next.js React TypeScript Tailwind CS...

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DEV Community • 2026-08-02 22:10

Getting FTDC out of MongoDB Atlas

Every MongoDB server writes FTDC, Full Time Diagnostic Data Capture, into a diagnostic.data folder next to its log. Roughly 5,700 metrics, once per second, compressed hard enough that days of history fit in a few hundred megabytes. It's what MongoDB support asks for when you open a performance ticket, and it's the difference between "the database was slow" and "the WiredTiger ticket pool hit zer...

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DEV Community • 2026-08-02 22:09

I ran Lighthouse on 269 Shopify stores. The median mobile score was 48.

I spent a July weekend running the Google PageSpeed Insights API against 269 live Shopify and DTC storefronts, one mobile audit each. I expected mediocre scores. I did not expect the biggest brands to be the worst offenders. Here is what the data says, and what almost every store gets wrong. The headline numbers Median mobile Performance score: 48 (out of 100) 53.4% of stores score...

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DEV Community • 2026-08-02 22:08

Did the client read my proposal? What an open tells you, and the one thing you must never do with it

You spent two days on it. You attached it, wrote three careful sentences in the body, and pressed send. That was Tuesday. It is now Friday and there has been nothing at all. That silence is why a lot of freelancers and small agencies install a read receipt tool the week after sending their first serious proposal. I build one, so treat this as an interested account. It is also the article where I ...

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Hacker News • 2026-08-02 22:06

Show HN: Mu – Tools for Agents

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DEV Community • 2026-08-02 22:06

Did the recruiter open my application? What a read receipt can and cannot tell you

Applying for a job is one of the few situations where you send something important and get nothing back at all. Not a rejection, not a delay, not an acknowledgement. Silence, for weeks. That silence is why so many people install a read receipt tool right after sending an application. I build one, so this is an interested account. It is also the article where I argue that the tool answers a smalle...

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DEV Community • 2026-08-02 22:04

One API key across OpenAI, Claude and Gemini: how to compare token cost per model

Bottom line: if you want one API key across OpenAI, Claude and Gemini and you're choosing mainly on token cost, put a thin router in front of your app and let it price each request before sending it — with per-model pricing pulled from the same API you're calling, not from three vendor pricing pages you'll forget to re-read. For a two-person startup that buys you one credential, one place to compa...

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DEV Community • 2026-08-02 22:00

Give Your Angular Modal a URL: Three Router-Based Approaches

Opening a modal is easy. Giving it a URL, and making that URL behave like a real part of the application, is where things become interesting. Let’s look at three ways to connect a modal to the modern Angular Router, including the trade-offs that are easy to miss. Why route a modal at all? The usual modal starts with a click handler: <button (click)="openEditDialog(product.id)"&g...

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14m read
DEV Community • 2026-08-02 21:59

Palantir performance highlights enterprise AI adoption trends

Enterprise artificial intelligence currently faces a significant hurdle as the vast majority of projects fail to progress past the initial pilot stage. Recent industry data indicates that between 70% and 90% of these initiatives stall before they can reach full operational status within large organizations. Growth through customer integration Palantir stands as a notable exception to t...

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DEV Community • 2026-08-02 21:59

My Wise Buddy and I #2: Deciding Less, Twice

My Wise Buddy and I #2: Deciding Less, Twice I have an ordinary office job in the food industry — mostly planning work, no engineering — and I build this AI project in the hours around it. I watched AI from the stands for three years and only opened a terminal for the first time this year. This is the week I found out that my main contribution to my own project had quietly become: being...

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Hacker News • 2026-08-02 21:51

Show HN: Alfa. Killing AI hallucinations with resonance

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DEV Community • 2026-08-02 21:50

I checked who comments on my MCP posts. Most of the good ones are bots.

I've published seven posts about the MCP ecosystem in a week, all built on measurements — endpoint health, schema drift, tool ambiguity. They drew a decent number of comments, several of them genuinely sharp. One reframed my whole approach and I thanked the commenter for it. Then I did to the commenters what I'd been doing to MCP servers: I measured them. Most of the best comments came from auto...

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DEV Community • 2026-08-02 21:40

What I Learned Shipping 90+ Mobile Apps with AI Coding Agents

Over the last year I've shipped more than ninety mobile apps to the App Store and Play Console, almost all of them built with heavy help from AI coding agents (Claude Code, mostly, with a mix of other tools along the way). That number sounds absurd until you understand what most of these apps actually are: small, focused utilities and niche games built by a team of one, not ninety separate startup...

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DEV Community • 2026-08-02 21:40

I built in-app Polymarket copy trading with MetaMask EIP-712 — no private keys, no redirects, one click

I just shipped one-click copy trading on WhaleTrack — here's the architecture that makes it work without ever touching a private key. The Problem Polymarket's CLOB API needs two auth layers: EIP-712 order signing HMAC-SHA256 HTTP auth Most tutorials store private keys server-side. That's a security nightmare. The Solution — Split Architecture Backend builds the unsign...

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School cellphone bans don't boost scores or attendance, study finds
newest submissions : multi • 2026-08-02 21:39

School cellphone bans don't boost scores or attendance, study finds

submitted by /u/lofty23_smart to r/technology [link] [comments]

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HackerNoon • 2026-08-02 21:37

Crypto Exchanges Are Quietly Becoming Financial Operating Systems

Crypto exchanges are expanding into stocks, derivatives, and tokenized assets. The real challenge is building reliable infrastructure to connect them safely.

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DEV Community • 2026-08-02 21:33

AI Makes Developers Faster. Why Can It Make Teams Slower?

This was first published on the Vibsync blog. Reposting for the DEV community. The short version: AI reliably makes each developer faster. Whether it makes the team faster is a separate question — and the gap between the two is where a lot of quiet cost hides. Below: the five coordination costs that eat the difference, a ten-question diagnostic, and five operating principles. Picture three de...

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Vue.js - The progressive Javascript framework • 2026-08-02 21:32

No official guidelines to create a component library?

Hello! I have an issue/question for the experts who dwell this virtual space, if I may be so bold. I'm trying to determine the best way to create a component library using Vite, but shockingly enough, the official Vue documentation has zero guidelines about creating component libraries. Fine, I guess I can learn by example. I have checked a couple, and it seems that bundling is the way people go. ...

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Hacker News: Front Page • 2026-08-02 21:30

Flock – Chilling Effects: Long Island's Emerging Open-Air Prison

Article URL: https://www.11971.com/ Comments URL: https://news.ycombinator.com/item?id=49148541 Points: 7 # Comments: 1

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DEV Community • 2026-08-02 21:28

Building Your First MCP Server for Network Devices - Part 2

This is Part 2 of a 7-part series on AI-assisted network operations with MCP and Agent Skills. Part 1 explained why your network devices need an MCP server. This article builds the first useful version. Table of Contents The Smallest Useful MCP Server Inventory Before Tools The Driver Abstraction The Netmiko Backend The First Tools Bounded Data, Not Raw Dumps Family-Specific Exampl...

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