A Beginner’s Guide to Growing Mushrooms at Home (2026)
From countertop kits to a bathroom bucket full of straw and beyond, I spent a year testing popular mushroom-growing methods. Here’s what fruited—and what just grew mold.
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From countertop kits to a bathroom bucket full of straw and beyond, I spent a year testing popular mushroom-growing methods. Here’s what fruited—and what just grew mold.
China's leading AI companies are ramping up the pressure on Silicon Valley, as Moonshot and Alibaba unveiled models they claim can go toe-to-toe with the best from OpenAI and Anthropic at a fraction of the cost. The rapid-fire releases suggest America's lead at the AI frontier is increasingly tight, just as the technology is becoming […]
Several Chinese businesses associated with the ebike brand Aipas settled a lawsuit with Amazon and the safety certification company UL in July.
A new toolkit for attorneys in Massachusetts targets the technologies police use—and conceal—to build criminal cases, from facial recognition to AI-written police reports.
A few weeks ago a Business Manager handed me a 50-page AI-generated technical spec. The document was impressive. The perspective behind it was the problem. I had talked to him a few days earlier about a new internal tool the company needed. We discussed the use case and the requirements in depth. Later on, I discussed those same requirements with my IT team and assigned them the job of making the technical specification. But before my team finished, the Business Manager handed me his own spec. A spec ready to be executed. The document was generated with AI assistance and it was impressive — fifty pages long, detailed feature breakdown, implementation timeline, cost projections. Everything looked professional. The AI had done exactly what it was asked to do. I read the whole document and noticed a problem. Not with the quality of the document but with the perspective that shaped it. The spec called for a manual Excel-based workflow with several manual steps and validations in-between. All seemed clean and manageable, matching the Business Manager's mental model of how that business workflow should work. When I checked the spec my team was working on using the same AI assistance tools, I noticed they had produced something completely different: automated data ingestion, real-time dashboards, API integrations with existing systems. Both specs addressed the same business need. Both were technically sound. Both could be built in roughly the same timeframe. But they were fundamentally different architectures, shaped by fundamentally different perspectives on how work should happen. The Business Manager's version was optimized for control and visibility — he could see every step, every piece of information and approve everything manually at any stage. The technical lead's version optimized for efficiency and scale — minimal manual intervention, automated error handling, designed to handle 10x the current volume without breaking. Neither person was wrong. But the AI amplifi
Here's a problem every agent builder eventually runs into: your assistant needs to be good at a lot of things. Writing SQL. Composing emails. Debugging code. Maybe more later. So where do all those instructions go? The obvious answer is: cram them all into the system prompt. But that "obvious" answer causes real problems as your agent grows. In this post, I'll walk through those problems first, then show how the skills pattern in LangChain fixes them, using a small working example. The problem: one giant prompt Let's say you want a single assistant that can write SQL, draft emails, and help debug code. The naive approach is one big system prompt: You are a helpful assistant. When writing SQL: - Write queries using only SELECT, INSERT, UPDATE, DELETE - Always use parameterized queries to prevent SQL injection - Format SQL keywords in UPPERCASE - Include brief comments for complex queries When writing emails: - Keep emails concise and professional - Use clear subject lines - Structure: greeting -> purpose -> details -> call to action -> sign-off - Adjust tone based on context When debugging: - First reproduce the error - Check logs and error messages - Isolate the root cause - Suggest a fix with explanation ... This works fine for three domains. But keep adding more — legal reviewing, data analysis, customer support scripts, code review standards — and you run into a few concrete issues: 1. Prompt bloat. Every single request pays the token cost of every domain's instructions, even if the user only asked about SQL. That's slower and more expensive for no benefit. 2. Instructions start to blur together. When the SQL rules, the email rules, and the debugging rules all sit in the same block of text, the model has to sift through everything at once. It's easy for instructions from one domain to bleed into another, or for the model to lose track of which rule applies where. 3. It doesn't scale. Every time you want to add a new specialty, you're editing one long, increasingl
If you’ve spent any time recently writing detailed product requirement documents or meticulously...
Suppose leadership rewards teams for increasing the percentage of “AI-assisted pull requests.” The dashboard rises. Did productivity improve, or did people learn which box to tick? Before launching that metric, I would run a consequence-mapping session: Intended behavior Plausible adaptation Counter-metric try useful assistance label trivial PRs as assisted retained task outcome ship faster split work into tiny PRs lead time per task share adoption avoid difficult non-AI work task-mix distribution accept suggestions reduce review scrutiny rollback and defect rate The metric card should make disagreement possible: name : ai_assisted_pr_share purpose : detect workflow adoption, not productivity owner : developer-experience known_game : self-label inflation counter_metrics : [ task_mix , review_minutes , rollback_rate ] review_date : 2026-08-19 retire_when : classification cannot be audited Then interview both high and low scorers without treating the score as performance. Ask what work disappeared, what new verification appeared, and what behavior the dashboard encouraged. Include an anonymous channel: a metric cannot reveal pressure if challenging it carries career risk. The SPACE framework argues that developer productivity cannot be captured by one dimension. That is especially relevant when AI telemetry is easy to count but verification and rework are harder to observe. My launch gate is not “the metric is accurate.” It is: teams can inspect its definition, challenge its interpretation, and show where it changes behavior. If the counter-metrics diverge, pause incentives before refining the chart. What behavior would your current AI dashboard accidentally reward?
An accepted AI suggestion is an event, not a durable outcome. If the code is rewritten tomorrow, acceptance rate still calls it a success. For an adoption review, I would connect three timestamps: suggestion : accepted_at : 2026-07-19T09:00:00Z repository : api task_type : test change : retained_lines_24h : 31 rewritten_lines_24h : 9 reverted_at : null review : human_minutes : 12 incident_link : null Then report a funnel rather than one flattering percentage: shown → accepted → merged → retained_24h → retained_14d A useful unit is cost per retained task : (tool cost + review labor + rework labor) / retained tasks “Retained” needs a written contract. For example: the change remains merged after 14 days, passes required checks, and has not caused a linked rollback. Line survival alone is weak because formatting and refactoring can change lines without rejecting the solution. Segment the result by task type and repository. Boilerplate tests and unfamiliar security changes should not be blended into one portfolio average. Also publish counter-metrics: review time, escaped defects, rollback rate, and developer-reported interruption. GitHub documents available fields and limitations in its Copilot metrics API . Those product metrics can be inputs, but the retained-task join belongs to the adopting organization and should be versioned like any other analytics contract. My pilot gate would be simple: expand only if retained-task cost beats the existing workflow without worsening rollback rate. Otherwise, change the workflow before buying more seats. Record the baseline before enabling the tool, and keep one comparable task cohort outside the rollout; without that counterfactual, a rising retention rate may only reflect easier work entering the sample. What retention window would make an accepted change meaningful for your team?
A consumer health app isn't one product. It's eleven products stitched together into a single...
.The V8 engine speeds up JavaScript by dynamically compiling frequently run bytecode into optimized native machine code. However, if you pass inconsistent argument types to these optimized functions, V8 panics and deoptimizes back to bytecode. Keeping your functions monomorphic (single-typed) prevents this costly deoptimization loop, ensuring maximum runtime execution speed. If you’ve spent as much time digging into V8 execution flags as I have, you quickly realize that JavaScript is constantly rewriting itself under the hood. We like to think of JavaScript as a dynamically typed scripting language. But at runtime, engines like V8 are working tirelessly to turn your code into a highly optimized, statically typed powerhouse. When we violate that type stability, we pay a massive performance tax. How does the V8 engine optimize JavaScript at runtime? V8 uses a multi-tiered compilation pipeline that starts with an interpreter for fast startup times, then upgrades hot functions to optimized machine code using a JIT compiler. By tracking runtime type patterns, the engine can safely make assumptions to skip expensive dynamic lookups. When I look at V8’s execution pipeline, I see two primary systems working in tandem: Ignition (the interpreter) and TurboFan (the JIT compiler). Initially, Ignition compiles your raw JavaScript into bytecode so your app can boot instantly. As this bytecode executes, V8 allocates a data structure called a Feedback Vector for each function. Inside this vector are Feedback Slots (managed by Inline Caches, or ICs). These slots act as recorders, capturing the exact types (or "shapes") of the variables passing through your code. Once a function runs frequently enough to cross an execution threshold, V8 marks it as "hot" and hands it to TurboFan. TurboFan reads those feedback slots, assumes the types will remain identical in the future, and compiles a highly streamlined, native machine code version of that function. What happens when you pass differe
Modern web applications demand responsive, non-blocking user flows. This tutorial demonstrates a production-grade implementation for handling form submissions without full-page reloads using the native Fetch API and clean async/await syntax. The Complete Source Code Create a file named app.js and drop in the following event-driven architecture: JavaScript document.getElementById('registrationForm').addEventListener('submit', async (event) => { event.preventDefault(); // 1. Stop full page reload const form = event.target; const formData = new FormData(form); const submitBtn = form.querySelector('button[type="submit"]'); const responseMessage = document.getElementById('responseMessage'); // 2. UI Feedback: Disable button during network request submitBtn.disabled = true; submitBtn.textContent = 'Processing...'; responseMessage.textContent = ''; try { // 3. Asynchronous Fetch Request const response = await fetch(form.action, { method: 'POST', body: formData, headers: { 'X-Requested-With': 'XMLHttpRequest' } }); // 4. Status Code Validation if (!response.ok) { throw new Error(`HTTP error! Status: ${response.status}`); } const result = await response.json(); // 5. Dynamic UI State Handling if (result.success) { responseMessage.style.color = '#155724'; responseMessage.textContent = result.message; form.reset(); // Clear form on success } else { responseMessage.style.color = '#721c24'; responseMessage.textContent = result.error || 'Submission failed.'; } } catch (error) { // 6. Global Error Catching responseMessage.style.color = '#721c24'; responseMessage.textContent = 'A network error occurred. Please try again.'; console.error('Submission tracking error:', error); } finally { // 7. Reset UI State Guaranteed submitBtn.disabled = false; submitBtn.textContent = 'Submit Data Securely'; } }); The Problem with Synchronous Form Lifecycles Traditional submissions trigger a synchronous navigation cycle: the browser constructs a payload, issues a full HTTP request, and replaces the
Jensen Huang left Tokyo with deals spanning Japan's entire tech ecosystem.
GenPage is a generative AI system developed by Netflix to replace its traditional multi-stage recommendation pipeline by directly generating personalized user homepages. GenPage leverages user history and request context as a prompt to produce the entire page, resulting in improved user engagement and reduced serving latency. By Sergio De Simone
To learn how to analyze an error, we are going to use the error below as an example: nx run mobile : android ✔ 7 / 7 dependent project tasks succeeded [ 6 read from cache ] Hint : you can run the command with -- verbose to see the full dependent project outputs ————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————————— > nx run mobile : android > npx expo run : android › Opening emulator Medium_Phone › Building app ... Starting a Gradle Daemon ( subsequent builds will be faster ) Configuration on demand is an incubating feature . > Configure project : [ ExpoRootProject ] Using the following versions : - buildTools : 36.0 . 0 - minSdk : 24 - compileSdk : 36 - targetSdk : 36 - ndk : 27.1 . 12297006 - kotlin : 2.1 . 20 - ksp : 2.1 . 20 - 2.0 . 1 > Configure project : app ℹ️ Applying gradle plugin ' expo-max-sdk-override-plugin ' [ expo - max - sdk - override - plugin ] This plugin will find all permissions declared with `android:maxSdkVersion` . If there exists a declaration with the `android:maxSdkVer sion` annotation and another one without , the plugin will remove the annotation from the final merged manifest . In order to see a log with the changes run a clean build of the app . ℹ️ Applying gradle plugin ' expo-dev-launcher-gradle-plugin ' > Configure project : react - native - firebase_app : react - native - firebase_app package . json found at / home / user / projects / my - app / node_modules / @ react - native - firebase / app / package . json : react - native - firebase_app : firebase . bom using default value : 34.10 . 0 dencies of : app : debugRuntimeClasspath > : react - native - firebas : react - native - firebase_app : play . play - services - auth using default value : 21.5 . 0 : react - native - firebase_app package . json found at / home / user / projects / my - app / node_modules / @ react - native - firebase / app / package . json : react - native - firebase_app : version set from
Welcome back to TechCrunch Mobility, your hub for the future of transportation and now, more than ever, how AI is playing a part.
The line between editorial content and paid promotion has been eroding for years. On most major retail platforms, in countless lifestyle publications and across the breadth of social media, content that presents itself as independent assessment is frequently underwritten by the very brands being assessed. This is not a new problem, but it is a worsening one. The consequences are practical. Consumers who believe they are reading a review and acting accordingly may be making purchasing decisions on the basis of what is, in effect, an advertisement. The financial cost of that mistake is modest in most individual cases. The cumulative effect on consumer trust is not. Understanding what separates a genuine review from disguised promotional content requires more than checking for a disclosure label. It requires looking at structure, incentive, methodology and language - and recognising that some of the most effective adverts are those that most convincingly resemble reviews. What a Review Is Actually Supposed to Do A review serves one primary function: to help a reader make an informed decision about a product, service or brand. That function is incompatible with advocacy. A reviewer who is trying to help a reader decide cannot simultaneously be trying to persuade that reader to buy. This distinction sounds obvious. In practice, it collapses quickly when the person writing the review has a financial relationship with the brand, when the product was provided free of charge without conditions, or when the publication depends on advertising revenue from the sector it covers. None of those arrangements automatically invalidates the content produced. But each one creates a structural incentive that pushes in a specific direction - and that direction is rarely towards harder scrutiny. The Disclosure Problem Regulatory frameworks in the UK, including guidance from the Advertising Standards Authority and the Competition and Markets Authority, require that paid-for content be clea
Over the past few months, I've been exploring how AI can move beyond chatbots and become an active part of business workflows. That journey led me to build SmartStock AI , an inventory management platform that combines modern web technologies with AI agents, Retrieval-Augmented Generation (RAG), demand forecasting, and automation. Instead of only tracking inventory, SmartStock AI helps businesses make proactive decisions. What SmartStock AI Can Do 🤖 Forecast future product demand 📦 Recommend purchasing decisions through AI agents 📚 Answer inventory-related questions using Hybrid RAG with source citations 📄 Process invoices using multimodal AI ⚡ Generate real-time inventory alerts 🔐 Secure the platform with JWT authentication and role-based access control Technology Stack Frontend React 19 Backend Django 5 Django REST Framework Database PostgreSQL pgvector AI LangChain Hybrid RAG AI Agents Prophet Forecasting Infrastructure Celery Redis Docker GitHub Actions What I Learned Building SmartStock AI taught me much more than integrating an LLM into an application. Some of the biggest lessons were: Designing AI features that solve real business problems. Building reliable agent workflows instead of simple chatbot interactions. Combining vector search with structured database queries. Managing asynchronous AI tasks using Celery and Redis. Creating production-ready APIs with Django REST Framework. Deploying and maintaining a modern full-stack application. Demo 🎥 YouTube Demo https://www.youtube.com/watch?v=DQJqs6bgE98 🌐 Live Demo https://smart-stock-dev.vercel.app/ Demo Account Email: viewer@smartstock.ai Password: Viewer123! 💻 GitHub Repository https://github.com/Eng-Ayman-Mohamed/SmartStock-AI Final Thoughts This project was developed as my graduation project during the Information Technology Institute (ITI) Full Stack Web & Generative AI Program. It was an incredible opportunity to explore AI engineering, backend architecture, and modern software development while buildin
"Everybody knows the Greeks are inside."
Current AI, a non-profit building AI that leaves no one culture behind, has made remarkable progress across devices, AI chat and more.