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Validate Telegram Login Widget Auth Payloads in PHP and Yii2

Integrating the official Telegram Login Widget allows users to authenticate on a web application using their Telegram account. When a user authorizes via the widget, Telegram passes authentication parameters (such as id , first_name , username , auth_date , and hash ) back to your specified redirect URL or JavaScript callback. In this tutorial, we will construct a backend validation mechanism in PHP and implement it inside a Yii2 application controller. We will compute the expected HMAC-...
[Boost]
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[Boost]

Designing a plugin architecture for third-party database providers in a TypeScript application Cevheri Cevheri ...
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Why Your .NET MCP Tool Classes Crash at Runtime (And the Two-Line Fix)

If you're building MCP servers in .NET with instance-based tool classes — the kind that take ILogger<T> , HttpClient , or a repository through constructor injection — there's a good chance you've already hit this at runtime: System.Reflection.TargetException: Non-static method requires a target. No warning at startup. No compile-time error. Just a crash the moment an AI model calls your tool in production. This post explains why it happens, shows the two-line fix in ...
NO idea where to start learning SQL?
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NO idea where to start learning SQL?

This article is a beginner friendly guide that gets you started into learning SQL as a programming language. Introduction Relational databases store data in tabular form, often referred to as structured data. The alternative is Unrelational databases. Now SQL is simply the programming language that enables you to do so. SQL stands for Structured Querry Language Basics To understand a Structured Querry Language , these 4 concepts should come in mind: Tabl...
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Weekend Build Log: The Timeout Is the Product

You sit down Saturday with one failing test file. The stack trace is ugly and long. You want a tiny helper that groups those failures. Ninety minutes later you are still retrying a model. The helper never became a demo. The weekend dissolved into another chat. This log cuts that loop. You freeze three files. You wrap the run in a timeout. You write a receipt. Then you stop. The Saturday trap You do not lack ideas on Saturday morning. You lack a stop rule. Chat tools invite ...
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Standard JSON Schema vs JSON Schema

Damn, I like standards! I'm so happy to live in a world where we can finally use USB-C for almost everything... Oh, the article is not about USB-C, but about JSON Schema finally getting a "Standard" in 2026! Well, I'm kidding here... JSON Schema is a standard itself, which has existed for a long time already- multiple standards, actually: first proposal 2007, draft-04, draft-07, draft-2020-12, openapi-3.0, and they don't stop. Describing JSON with JSON - what can be better? This is what JS...
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A stale hash failed 29 of 59 tests. The tool that refreshes hashes had never seen that copy.

The project keeps derived claims from rotting with freshness pins. A pin is a row that cites another file and records the hash of the bytes it was derived from. A small device recomputes those hashes and re-keys the rows. If a pin cannot be reproduced, the check that depends on it goes red instead of quietly lying. It went red. The cause was not the pin it named. One bad row, 29 failing tests verdict-check, before the fix tests 59 total, 30 passed, 29 failed OK_READ...
RTK: A High-Performance Rust CLI Proxy That Slashes AI Agent Token Costs
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RTK: A High-Performance Rust CLI Proxy That Slashes AI Agent Token Costs

Eliminating Terminal Bloat: Meet RTK (Rust Token Killer) As developers increasingly delegate terminal tasks, testing, and debugging to AI coding agents (such as Claude Code, Cursor, Codex, and OpenHands), context window saturation has become a major engineering bottleneck. Standard developer tools—such as git diff , test runners, and package managers—were designed for human terminal readability, often generating verbose logs filled with progress indicators, decorative ASCII headers, ...
The 3 Scaling Laws of AI: From Training More to Thinking More
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The 3 Scaling Laws of AI: From Training More to Thinking More

Hello, I'm Rijul, and I'm building LiveReview — a blast-radius aware AI code review built for your business-critical systems. Star us to help devs discover the project, give it a try, and share your feedback to help improve the product. We see the pace of AI development speeding up. One way to view this is through the 3 scaling laws of AI . It originally started with one scaling law, but as AI has advanced, it has grown into 3 different ways of scaling AI capabilities. P...
A Turing Machine in Minecraft
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A Turing Machine in Minecraft

This is an English translation of my original article on Habr , originally published in Russian. A Turing machine is one of the fundamental models in computer science. I've been playing Minecraft for more than 12 years and have built all kinds of mechanisms in the game. After years of university study and working in the industry, I had an idea: combine my hobby with fundamental theory, build a Turing machine using Minecraft's mechanics, and share the result. A Turing machine has three ba...
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How I Built a Bilingual RAG-Powered AI Calling & Chat Agent (With a Full Admin Ops Center)

Most "AI chatbot" projects stop at a demo: a widget, an OpenAI/Gemini call, a canned prompt. Getting one into production for real businesses — across voice calls, web chat, and WhatsApp, in two languages, without hallucinating — is a different problem. Here's how I approached it. The Core Challenge Three requirements shaped the whole architecture: Multi-channel, single brain — phone calls, web chat, WhatsApp, and Instagram all needed to hit the same knowledge base and produce consistent...
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Context aware Spring AI chat microservice

Keeping State in a Stateless World: Building a Context-Aware Gemini Microservice with Spring AI and H2 By default, Large Language Models (LLMs) are completely stateless . Every API call you make to Google Gemini is treated like a first-time introduction. If a user says " My name is Alex " in request one, and " What is my name? " in request two, Gemini will not know the answer. To build a true chatbot experience, your microservice needs to remember the conversation history. In this pos...
HackerNews

Ask HN: What would it look like if AI agents "took over the internet"?

Asking with reference to Dario Amodei’s statement, “It’s my worry that in 6–12 months such a swarm could be capable of taking over the entire internet with a persistent botnet (potentially causing hundreds of billions of dollars in damage), and that the scale of damage would continue to increase from there if AI becomes more powerful without the necessary guardrails.” Comments URL: https://news.ycombinator.com/item?id=49686489 Points: 4 # Comments: 7
HackerNews

Russian developers used AI to build 'kamikaze' attack drone software

Article URL: https://www.theguardian.com/world/2026/sep/12/ukraine-war-briefing-russian-developers-used-ai-to-build-kamikaze-attack-drone-software-anthropic-says Comments URL: https://news.ycombinator.com/item?id=49686825 Points: 3 # Comments: 0
HackerNews

SubmitHub's new AI music policy

Article URL: https://www.submithub.com/story/ai-policy Comments URL: https://news.ycombinator.com/item?id=49686912 Points: 2 # Comments: 0