标签：#Productivity

Hello, I'm Shrijith Venkatramana. I'm building git-lrc, an AI code reviewer that runs on every commit. Star Us to help devs discover the project. Do give it a try and share your feedback for improving the product. Every developer eventually discovers the same frustrating pattern. Your application sends a 20,000-token prompt to an LLM. The first request takes 2 seconds. The next request contains the exact same 20,000 tokens plus a tiny user message at the end. And somehow the model processes the entire thing again. At least, that's what many developers assume. Modern LLM systems have a trick called prompt caching that can dramatically reduce latency and cost by reusing work from previous requests. But unlike traditional application caches, prompt caching isn't storing generated text. It's storing something much deeper inside the model. To understand how prompt caching works, we need to follow a prompt all the way through the transformer itself. The Expensive Part of Processing a Prompt When a prompt enters a transformer model, it isn't immediately generating text. First, the model must process every input token through every layer of the network. Imagine a prompt like: System: You are a helpful coding assistant. Project Documentation: [20,000 tokens of documentation] User: How does authentication work? Before generating a single output token, the model performs: Tokenization Embedding lookup Multi-head attention Feed-forward networks Layer normalization ...across dozens or even hundreds of transformer layers. For a large model, this preprocessing is often more expensive than generating a short answer. If another user asks: System: You are a helpful coding assistant. Project Documentation: [Same 20,000 tokens] User: Explain the database schema. Most of the prompt is identical. Without caching, the model would recompute everything from scratch. Prompt caching exists to avoid that waste. The Key Insight: Cache Internal Transformer State, Not Text A common misconception

In early 2026, Anthropic researchers ran an experiment with 52 junior developers. Half used an AI assistant to learn an unfamiliar Python library. The other half worked without one. Both groups finished the task. But when tested on how well they understood the code they had just written, the AI-assisted group scored 50% on a comprehension quiz - versus 67% for the unassisted group. That 17-percentage-point gap has a name: cognitive debt. It is one of the most important concepts in software engineering right now, and most developers are not paying enough attention to it. What Is Cognitive Debt? Cognitive debt describes the growing gap between the volume of code that exists in a system and the amount that any developer genuinely understands. It is not a new term, but it crystallized across multiple research streams in early 2026. Addy Osmani (Google Chrome) described it as "comprehension debt" - the hidden cost that accumulates when code becomes cheap to generate but understanding still requires deliberate effort. Margaret-Anne Storey (University of Victoria) formalized the concept in a March 2026 arXiv paper, framing it as a team-level problem and extending it into a Triple Debt Model: technical debt in the code, cognitive debt in the people, and intent debt - the missing rationale that both humans and AI agents need to safely work with code. Cognitive Debt vs. Technical Debt These two ideas are easy to conflate, but they are fundamentally different problems. Technical debt lives in the code - it shows up as slow builds, tangled dependencies, and failing tests. Cognitive debt lives in people - it surfaces as an inability to explain, debug, or extend code that the team themselves wrote. The critical difference: technical debt announces itself through friction. Cognitive debt breeds false confidence. Your tests are green, velocity looks fine, and nobody realizes the system is fragile until something breaks in production and the team cannot reason through why. What the

Hermes Agent already has memory, and that matters. It keeps local context, it improves over time, and it works without forcing you into a cloud service. It also supports several external memory providers. I still built hermes-mempalace , because none of the existing options fit my setup quite right. I wanted something: local-first isolated by Hermes profile verbatim, not just extracted facts easy to inspect on disk simple enough to trust over time That last part is the important one. I did not want a memory layer that turns conversations into an opaque pile of embeddings or summaries you cannot really audit. I wanted actual transcripts, mined into a readable structure, with no hidden server in the middle. Why the existing options were not enough Hermes already gives you a few paths: built-in memory and session context external providers for different use cases enough flexibility to adapt, if you are willing to bend your workflow around them And to be clear, some of those options are good. But ... I run Hermes on a headless machine at home. And I use separate profiles for different contexts. And I do not want conversation content depending on a cloud API or a separate service unless there is a very good reason. So, the best fit had to check a few boxes: [x] no API key [x] no external server [x] no extra runtime I did not already want/install [x] storage isolated by HERMES_HOME [x] memory we can actually read later That let to MemPalace , or https://mempalaceofficial.com/ (hopefully, that's the right one!) What hermes-mempalace does hermes-mempalace wires MemPalace into the Hermes memory provider interface. It follows the same lifecycle as the rest of Hermes memory providers: system_prompt_block() adds a short memory reminder to the prompt. prefetch() can run a MemPalace search before the first model call. sync_turn() buffers completed turns without slowing the chat loop. on_session_end() writes buffered turns to markdown and mines them into the palace. shutdown() flu

The Only Productivity Hack That Actually Worked for Me I've tried every website blocker in existence. They all have the same flaw: one click and they're off. That settings toggle might as well not exist when the urge to procrastinate hits. I needed something I couldn't override. So I built the opposite. The Problem Every blocker follows the same pattern: it blocks, you unblock, you procrastinate. The issue isn't discipline — it's that your future self and your present self want different things. And that future self will happily undo anything you set up. What I needed was a system where both selves agreed on the rules upfront and then neither could break them. The Solution kblocker is a Linux kernel module that hooks into netfilter and drops TCP connections to whatever sites I configure. The key feature isn't the blocking — it's how you turn it off. When blocking is enabled, kblocker generates a 128-bit key. With PGP mode, it automatically encrypts that key to people I trust and then erases it from kernel memory. The raw key no longer exists anywhere on my system. To disable the blocker, one of those people has to decrypt it and send it back to me. I outsourced my willpower. When I want to focus, I run: sudo kblockerctl enable 120 Two hours of blocked distractions. If I feel the urge to procrastinate, I can't — I'd have to text a friend, explain why, wait for them to decrypt it, and paste the result. By then the urge is gone. The Result I've gone from losing entire afternoons to YouTube to actually finishing things. The blocker has caught me mid-reflex to type youtube.com more times than I can count. It's free if anyone wants it: github.com/Dan-J-D/kblocker If you keep breaking your own focus tools, this is for you.

For a long time I found myself checking different European stores to see where products were cheapest. It was slow and annoying. I had to open lots of tabs, change countries, check delivery costs and compare prices myself. I used other comparison websites, but I wanted something simpler. So I decided to build Haggl.eu. Haggl lets you compare prices across Europe from one search, helping you find better deals and save money. This is my first public project and I am learning a lot while building it. The site is still a work in progress, but I have plenty of ideas for the future. I want to add more stores, more countries, price history tracking and better delivery comparisons. My goal is to make it as easy as possible to find the best deal without spending ages clicking through different pages. I would love to hear any feedback or suggestions. Thank you everyone :) https://haggl.eu

For months, the most interesting model at Anthropic was one we could not use. Mythos was the internal system the company said was too capable to release, the one that found software vulnerabilities at a level that tripped its own safety thresholds. On June 9, 2026, that tier went public for the first time, as Claude Fable 5. Opus 4.8, the model anchoring production coding agents, suddenly had a successor that's a full capability class above it. This raises two questions for anyone running coding agents. The practical one is whether you should move your fleet from Opus 4.8 to Fable 5. The bigger one is whether a Mythos-class model, the tier Anthropic held back as too capable to ship, lives up to what the name promised. This article answers both, and the numbers tell a more interesting story than the announcement did. We ran both models through the same evaluation, close to 1000 shared scenarios scored twice each, once with no skill supplied and once with the relevant skill in context. The short answer, as of mid-2026, is that Opus 4.8 is still the better value for most agent fleets, and the gap between the Mythos hype and the measured reality is the real story in the data. A Mythos-class model is a tier of Claude that sits above the Opus class in capability . It reaches a threshold Anthropic considers high-risk, particularly at discovering and exploiting software vulnerabilities. Fable 5 and Mythos 5 are the same underlying model with the same capabilities. What separates them is the safeguards: Fable 5 is the public version that ships with safety classifiers, while Mythos 5, restricted to approved partners, runs without them. What the industry expected from a Mythos-class model Before launch, the speculation was not subtle. Across Reddit, X, and a run of explainer posts, Mythos was framed as the model that would change how agents work, not just how well they answer. The recurring predictions clustered around four capabilities: Restructuring a large codebase in one c

The hype cycle for AI adoption in businesses often follows a familiar, and often frustrating, trajectory. It begins with the undeniable allure of a powerful new tool—seeing ChatGPT effortlessly summarize documents or Copilot intelligently autocomplete code is undeniably impressive. The immediate reaction is almost universally: "We need to get AI." So, tools are procured, workshops are run, and initial enthusiasm soars. Yet, more often than not, six months down the line, that excitement has waned, and the needle on actual business transformation hasn't moved. The fundamental operational rhythm of the organization remains unchanged. As a Senior IT Consultant and Digital Solutions Architect with over a decade of experience, I've observed this pattern repeatedly across various client engagements. This isn't a failure of the technology itself, but rather a profound strategy failure . It’s the single most common and costly mistake I encounter in AI adoption today. The Critical Distinction: Tool Acquisition vs. Strategic Integration Think of buying an AI tool like purchasing a state-of-the-art machine for a workshop. Its inherent value is immense, but if it sits in a corner, unused or without a defined process around it, that value remains entirely theoretical. It's an expense, not an asset generating return. Real AI integration , on the other hand, is a disciplined, multi-faceted endeavor. It's about deeply understanding your existing business processes, meticulously identifying precisely where intelligent automation can create genuine, measurable leverage. It involves designing a holistic system that delivers this leverage, and critically, establishing robust mechanisms to measure the actual outcomes against predefined business objectives. This holistic approach is strategy. The tools—be it an LLM, a specific AI platform, or an automation suite—are merely components that strategy carefully selects and orchestrates to achieve a greater aim. Where AI Integration Truly Crea

I was working on a project and needed to convert some Markdown to HTML. Searched for it online, found a site, done. Next day I needed HTML back to Markdown. Searched again, different site. Then JSON to CSV. Then something else. Different site every time, half of them slow. At some point I just thought — why not build one site that handles all of this? So I did. That's QuickConvert . What It Is Just a collection of the conversions I kept searching for: JSON → CSV and back Markdown → HTML and back JSON → YAML XML → JSON CSV → JSON HTML → PDF Nothing fancy. No account needed. Everything runs directly in your browser — no data is sent anywhere, nothing is saved on a server. Why Astro I also wanted to try Astro for a while. I kept hearing it was great for content-heavy sites because of how little JavaScript it ships by default. A converter site felt like the perfect use case — mostly static pages with one interactive tool on each. Since Astro works with React components, it wasn't a big adjustment once I got the basics down. You write your page layout in .astro files and drop in React components where you need interactivity. Clicked pretty quickly. The result — 100 on Lighthouse across the board. The pages load instantly because there's barely anything to load. Hosting Deployed on Cloudflare Pages (now cloudflare workers). Free tier. The only thing this site costs me is the domain name. Try It quickconvert.dev Runs in your browser, no account, no data saved anywhere. I'm planning to keep adding more conversions — the everyday ones that developers reach for and end up Googling every single time. Maybe we can make something that becomes a tab that just stays open. Feedback welcome — especially if a conversion you need isn't there yet.

Programming is all about solving problems efficiently. Two concepts that play a major role in writing reusable and efficient programs are loops and functions . Loops help us perform repetitive tasks without writing the same code again and again, whereas functions help us organize code into reusable blocks. Let's understand these concepts in detail. Why Do We Need Loops? Suppose we want to print "Hello" five times. Without loops, we would write: console . log ( " Hello " ); console . log ( " Hello " ); console . log ( " Hello " ); console . log ( " Hello " ); console . log ( " Hello " ); Although this works, it violates one of the fundamental principles of programming: Don't Repeat Yourself (DRY) Repeating code: Increases the number of lines. Makes maintenance difficult. Introduces more chances for errors. Loops solve this problem by allowing us to execute the same block of code multiple times. Types of Loops in JavaScript JavaScript provides three looping statements: Loop Type Category while Entry-Check Loop for Entry-Check Loop do...while Exit-Check Loop Entry-Check Loop / Entry-Controlled Loop In entry-Check loops, the condition is checked before executing the loop body. If the condition is false initially, the loop body never executes. Examples: while loop for loop Exit-Check Loop / Exit-Controlled Loop In an exit-Check loop, the loop body executes first and then checks the condition. Therefore, the body executes at least once. Example: do...while loop Components of Every Loop Every loop generally consists of three parts: 1. Initialization Determines where the loop starts. let i = 1 ; 2. Condition Determines whether the loop should continue executing. i <= 5 3. Increment or Decrement Updates the loop variable after each iteration. i ++ ; or i -- ; 1. while Loop The while loop repeatedly executes a block of code as long as the condition remains true. Syntax while ( condition ) { // statements } Example: Print Numbers from 1 to 5 let i = 1 ; while ( i <= 5 ) { cons

If you use Claude daily, you've probably hit a wall mid-task. The reason it's so easy: Claude doesn't have one limit. It has several. A rolling 5-hour session window A weekly pool shared by all models Separate weekly caps per model (Opus, Sonnet, Claude Design) And the weekly pool is sneaky: Fable has no cap of its own and draws that shared pool down ~2× faster than Opus . So you can burn the week without realizing it. I wanted that state visible at a glance instead of digging through settings, so I built Claude Usage Monitor — a small browser extension for Chrome and Firefox. What it does It puts a color-coded % badge in your toolbar , and one click shows the full breakdown: Current 5-hour session + live countdown to reset Weekly all-models pool (with the Fable draw-down flagged on the card) Per-model weekly caps: Opus, Sonnet, Claude Design Daily Claude Code routine runs Extra-usage credits + prepaid balance for pay-as-you-go Auto-detects your plan (Pro / Max 5x / Max 20x / Team), so every number matches your subscription Six themes The privacy part (the part I cared about most) It's open source (MIT) and runs 100% locally — no backend, no analytics, no servers. A design decision I'm happy with: the host permissions are scoped to exactly four claude.ai endpoints (org list, usage stats, routine-run budget, prepaid balance). It physically can't read your chats, projects or files. Narrow permissions = less to trust, and less to exploit. One honest caveat: it reads claude.ai's own usage endpoints, so it can break if Anthropic changes them. Not affiliated with Anthropic. Try it It's free, no account needed (desktop Chrome & Firefox): 🔗 claude-monitor.com Chrome Web Store Firefox Add-ons Happy to hear what else you'd want tracked — drop a comment.

Six months ago, I could tell you which model to use for almost any job, and I would have said it with confidence. Today I hedge, and so does almost everyone I talk to who builds with these tools. The reason is simple. The ground keeps moving under us. Models get smarter on a schedule no one can forecast, and they get cheaper to run on a second schedule that is just as hard to predict. Both curves are bending at once, and they point in directions that change how I build and how I think you should build too. I spend my days crafting development, content and productivity workflows that lean on these models. I wire up agents, route tasks, and watch the bills. So this is not a far-off observation for me. It is the thing I am living with week to week, and it has forced me to rethink habits I held for years. This is not the usual story about a single breakthrough. It is four shifts happening together. Frontier performance is climbing past what most of us guessed was possible this year. Small models are getting good enough to run on a phone or a thirty-five dollar computer. The smart move has stopped being "pick the best model" and started being "build a system that picks for you." And a coding startup with a rocket company behind it is showing what happens when product, data, and compute sit under one roof. Let me take these one at a time. Then I want to show you what they add up to, because the sum is bigger than the parts. Performance Is Outrunning the Forecasts Start at the top of the market, where the most capable models live. Anthropic now ships a tier above its Opus line. The Fable and Mythos family is a class of model built for problems that smaller systems still fumble: long chains of reasoning, deep code work, research that needs to hold many threads at once. Claude Fable 5 carries extra safety work so it can go out to the public. A more powerful sibling, used inside a small set of trusted partners, stays behind tighter controls. The names are not the point. The p

Working with complex JSON payloads can quickly become a nightmare. You end up chaining .map() , .filter() , and .reduce() calls across multiple lines just to pull out a few nested values. Add optional chaining to avoid crashes and the code becomes nearly unreadable. There is a cleaner way - JSONata . It is a compact, purpose-built query and transformation language for JSON data. Think of it as XPath for XML, but designed from the ground up to work with JSON objects and arrays. What is JSONata? JSONata is an open-source project originally created by Andrew Coleman at IBM. It gives developers a declarative syntax to extract and reshape JSON data without writing procedural JavaScript loops. Where vanilla JS might take 15 lines, a JSONata expression often takes one. It is available as an npm package and integrates naturally into Node.js and TypeScript projects. Simple Path Navigation The foundation of JSONata is its dot-notation path traversal. Given a nested JSON object, you simply trace the path to the value you need: customer.address.city This returns the city value without any need for null checks or defensive coding. JSONata handles missing properties gracefully by returning undefined rather than throwing errors. Automatic Array Mapping When JSONata encounters an array during path traversal, it automatically maps across all items. There is no need to write an explicit .map() call: customer.orders.product This returns an array of all product names from every order in one clean expression. Inline Filtering You can filter arrays directly using bracket notation with a condition: customer.orders[price > 1000].product This returns only the products from orders where the price exceeds 1000. No .filter() callback required. Built-in Aggregation Functions JSONata ships with a solid set of built-in functions for math, strings, and arrays. Aggregating a set of values is straightforward: $sum(customer.orders.price) Other useful functions include $count() , $average() , $string(

From Confused to Confident: How I Finally Mastered GitHub Copilot in Every Situation I still remember the afternoon I rage-closed VS Code because Copilot kept suggesting the wrong function signatures — again . I had been treating it like a magic oracle, typing vague comments and expecting perfect code to rain down from the AI heavens. Spoiler: that's not how it works. After weeks of trial, error, and a few embarrassing pull request reviews, I cracked the code (pun intended). Here's everything I wish someone had told me about using GitHub Copilot accurately — across Chat , Plan , and Agent modes. 🧠 First, Understand What Copilot Actually Is Before diving into tips, let's reset expectations. GitHub Copilot is not a search engine. It's not Stack Overflow with a fancy UI. It's a context-aware AI assistant trained on massive amounts of code. That means: The quality of your output depends directly on the quality of your input . It works best when it has rich context — open files, good comments, clear naming. It can be wrong. Confidently wrong. Always review what it generates. With that mindset locked in, let's explore each mode. 💬 Copilot Chat: Your Pair Programmer in the Sidebar The first time I opened Copilot Chat, I typed: "fix my code." It stared back at me, basically confused. Of course it was — I hadn't told it which code, what was broken, or what I expected. Tips for Accurate Chat Usage 1. Be specific and contextual. Instead of: "Why isn't this working?" Try: "This useEffect hook in React runs on every render instead of only when userId changes. Here's the code: [paste snippet]. What's wrong?" The more context you give, the more surgical the answer. 2. Use slash commands to guide intent. Copilot Chat supports built-in commands that dramatically improve accuracy: /explain → Explains selected code in plain English /fix → Suggests a fix for a highlighted bug /tests → Generates unit tests for selected code /doc → Writes documentation for a function or class These aren'

Eight years ago (a geological epoch or two ago in Internet terms) Nicholas Jitkoff released itty.bitty.site - a website which could render whole websites just based on what was in the link, something like: itty.bitty.site?SOMEBASE64ENCODEDVALUE== et voilà! Free web-hosting if you could make it fit ;) At the time, I was rather obsessed with qr-codes thanks to developing QRGoPass and was working with aster plots a lot, so I developed an app that could fit into a qr-code! Today itty.bitty.site no longer exists so I can't do that any more... But I did make it 80% smaller without "cheating" and using modern CSS instead of d3.js ;)

The default for AI-assisted development is one of two failure modes. Either you're babysitting the agent line by line — approving each diff, re-explaining context it dropped three messages ago — or you've handed it the wheel and you're hoping the PR that lands at the end resembles what you asked for. Son of Anton is neither. It's a delivery orchestrator built on a single claim: there are exactly three moments where a developer's judgment is irreplaceable. The orchestrator owns everything in between. The three gates Every project moves through three human decision points. Nothing important happens without you signing off. Gate 01 — Approve the WHAT ( /soa plan ) A grill-me session forces the AI to surface its assumptions, constraints, and scope decisions back to you before a single ticket exists. You say yes or you refine. It does not proceed until you have. Gate 02 — Approve the HOW ( /soa decompose ) The approved plan becomes a ticket stack — ordered, dependency-aware, sized for review. Architectural judgment stays with you. Ticket authorship goes to the agent. Gate 03 — Approve DONE ( /soa closeout ) An adversarial subagent reviews every ticket before its PR opens. When the phase is complete, you decide whether to accept. Closeout squash-merges the stack onto main. Nothing merges without you. Between the gates, you are not needed That's the whole point. Once you've approved the plan and the tickets, the orchestrator runs the loop:

Most of the "Cursor vs Claude Code" takes I read are framed wrong. It's not a cage match. They're not competing for the same job — they're good at different jobs, and once that clicked for me, both got more useful. After months of leaning on both for actual day-to-day work (not demos, not toy repos), I've settled into a pretty stable split: Cursor handles about 90% of my coding, and Claude Code handles the 10% that actually moves the needle. Here's where I draw the line, and the rule of thumb that decides it. The 90%: why Cursor owns my day Most coding isn't dramatic. It's small, local, iterative work: tweak this function, rename that, fix the bug in the file I'm already staring at, ask "what does this block do" without breaking focus. That's exactly Cursor's home turf. It lives inside the editor, so I never leave my flow. Inline edits, fast completions, quick questions about the code in front of me — all without context-switching. When the work is local and I want to stay in the loop keystroke by keystroke, an in-editor copilot is the right tool. It keeps me fast and in context, which is most of what a normal coding day actually is. The 10%: where I close the editor and open Claude Code Then there's the other kind of task — the one where I don't want to babysit every edit. Claude Code is terminal-native and agentic. Instead of sitting beside me suggesting the next line, it works more like something I hand a well-described task to and let run across the whole project. That changes what it's good for: Codebase-wide refactors that touch a dozen files at once "Understand this whole repo and do X" type tasks, where the work depends on grasping how everything connects Jobs I want to delegate and step away from , rather than steer line by line The mental model that finally made it stick for me: Cursor is a copilot sitting next to you. Claude Code is more like handing a ticket to a capable teammate and checking the result. Different relationship, different jobs. How I actu

Few lines of code look more innocent than this: retry ( 3 ) It feels responsible. Professional. Resilient. After all, networks fail. Servers become unavailable. Databases occasionally time out. Retrying seems like the obvious solution. And sometimes it is. But after enough years building production systems, I've become convinced of something: Retry is one of the most dangerous keywords in software. Not because retries are bad. Because retries amplify everything. Good systems become more reliable. Bad systems become disasters. The problem is that many developers treat retries as a reliability feature when they're actually a distributed systems feature. And distributed systems are where simple ideas go to become complicated. Why Retries Exist Imagine: await fetch ( " /api/users " ); The request fails. Maybe: Network hiccup Temporary database issue Load balancer restart Service deployment The operation might succeed if attempted again. So we write: retry ( 3 ) Seems reasonable. And in many cases: It Works Which is why retries become popular. The Dangerous Assumption Most developers unconsciously assume: Failure = Operation Did Not Execute Unfortunately that's not always true. A request can: Execute Successfully ↓ Response Never Arrives From the client's perspective: Failure From the server's perspective: Success Now a retry becomes dangerous. The Double Payment Problem Imagine a payment service. await chargeCard ( order ); The card processor successfully charges: $100 The response is lost due to a network issue. Client sees: Request Failed and retries. await chargeCard ( order ); again. Now: Charge #1 = Success Charge #2 = Success The customer paid twice. Nobody wrote bad logic. The retry created the bug. The Email Storm Problem Consider: await sendWelcomeEmail ( user ); Email provider accepts the message. Response times out. Application retries. await sendWelcomeEmail ( user ); again. Customer receives: Welcome! Welcome! Welcome! Welcome! Support ticket created. Marke

It is one of the most frustrating experiences in online learning: you sit down to focus on a Udemy course, but the video player constantly pauses, freezes, or refuses to load. Meanwhile, YouTube, Netflix, and every other app on your Mac run perfectly fine. Because other platforms work without a hitch, it is easy to assume the issue lies with Udemy's servers. However, the root cause is usually a silent conflict between your browser settings, macOS security features, and Udemy’s strict digital rights management (DRM) protections. If you are stuck on a looping loading wheel, here is exactly why it happens and how to fix it in less than two minutes. Quick-Fix Troubleshooting Checklist Save or screenshot this step-by-step breakdown to instantly diagnose and fix your playback issues: Step 1: Open Chrome in Incognito Mode Open a new Incognito window ( Cmd + Shift + N on Mac). Try playing the video again. If it works: Disable ad blockers. Disable VPN privacy shields or browser extensions one at a time. If it still fails: Continue to Step 2. Step 2: Disable Hardware Acceleration Open Chrome. Go to Settings → System . Turn off Use graphics acceleration when available . Relaunch Chrome. Test the video again. Step 3: Check Mac Security and Display Connections Disconnect any external monitors or docking stations. Close applications that may interfere with video playback: Zoom Discord OBS Studio Screen recording tools Test video playback again. Step 4: Clear Temporary Browser Data Open Chrome. Go to Settings → Privacy and Security → Clear Browsing Data . Select: Cookies and other site data Cached images and files Clear the data. Restart Chrome and try again. Still Not Working? If the issue persists after completing all four steps: Update Chrome to the latest version. Update macOS. The Main Culprit: Hardware Acceleration Conflict The most common reason Udemy videos stutter or freeze on a Mac is a feature called Hardware Acceleration inside Google Chrome. What is Hardware Accelerat

Everyone's debating whether coding is dead. I actually do this job.. with AI writing code beside me for most of my working hours. Here's what the headlines get wrong. Open your feed right now and you'll find the same headline in a dozen costumes: "Why AI will replace 80% of software engineers by 2026." "Is coding dead?" "Should you still learn to code?" It's the most-clicked anxiety in tech, and it's everywhere for a reason, it taps a real fear about real careers. But here's the thing about almost every one of those posts: they're written from the sidelines. Predictions about a job by people who don't do it. I'm writing this from the other side. I'm an engineer, and I drive AI coding agents every single day. They read code, write changes, run tests, and open reviews for most of my working hours. So when someone asks "should you still learn to code in 2026?" , I'm not guessing. Here's my honest answer: Yes. Absolutely. But the job you're learning for has quietly become a different job and almost nobody is telling you which one. The hype isn't entirely wrong Let me start by giving the doomers their due, because pretending the shift isn't real would make me exactly the kind of person I'm criticizing. The productivity jump is genuine, and it's not subtle. Industry surveys in 2026 put the share of new code that's AI-assisted somewhere north of 40%, and developers using these tools self-report double-digit speedups on routine work. That matches my experience. The agent now handles: Boilerplate and glue code —-> the stuff I used to type on autopilot, gone in seconds. First drafts —-> "scaffold something that does X" gets me 80% of the way instantly. Syntax recall —-> I stopped breaking focus to look up things I half-remember. Tedious refactors —-> rename-this-everywhere, migrate-this-pattern, done fast. and all the kludgy things that I dread to do. If your mental image of "coding" is typing syntax into an editor , then yes.. a big chunk of that is being automated. The vira

有時候我剛跑完一個指令，馬上發現其實只需要改其中一小部分。 例如我剛用 ffmpeg 轉了一個影片： ffmpeg -i calligraphy01.mp4 -c :v libx264 -c :a aac calligraphy_good_01.mp4 然後我想用同樣的指令處理下一個檔案： ffmpeg -i calligraphy02.mp4 -c :v libx264 -c :a aac calligraphy_good_02.mp4 如果用傳統方法，我可能會按上箭頭，然後手動把兩個地方的 01 改成 02 。 但在 zsh 裡，可以直接輸入： !! :gs/01/02/ 意思是： 拿上一個指令，把所有的 01 都換成 02 ，然後執行。 所以這個： !! :gs/01/02/ 會展開成： ffmpeg -i calligraphy02.mp4 -c :v libx264 -c :a aac calligraphy_good_02.mp4 語法是什麼意思？ !! 代表「上一個指令」。 :gs/01/02/ 代表「把所有 01 全部替換成 02 」。 所以完整的： !! :gs/01/02/ 意思就是： 使用上一個指令，把所有 01 改成 02 ，然後執行。 先預覽，不要馬上執行 有時候我不想讓它立刻執行，尤其是指令比較長、比較重要，或者執行成本比較高的時候。 這時可以加上 :p ： !! :gs/01/02/:p 它會只印出修改後的指令，不會執行： ffmpeg -i calligraphy02.mp4 -c :v libx264 -c :a aac calligraphy_good_02.mp4 如果看起來沒問題，就按一下 上箭頭 ，把剛剛印出的指令帶回命令列，再檢查一次，然後按 Enter 執行。 比較安全的流程就是： !! :gs/01/02/:p 確認輸出結果後： 上箭頭 → 再看一次 → Enter 這對比較長、比較容易打錯、或不想立刻執行的指令很有用。 只替換第一個地方 如果你只想替換第一個出現的地方，也可以用： ^01^02 不過像上面的 ffmpeg 例子，輸入檔名和輸出檔名裡都有 01 ，所以通常會比較適合用： !! :gs/01/02/ 這種小技巧每次可能只省幾秒鐘，但如果你常常在 command line 裡重複處理檔案、日期、編號、影片、圖片或 migration，累積起來真的會讓工作順很多。