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The problem I was scratching Every time I was debugging a web app, the same friction kept happening: I'd see a request in Chrome DevTools' Network tab, and to actually test a variation of it — a different header, a different body, a different query param — I had to copy it out to Postman or Insomnia, paste it in, re-add auth headers, and lose all the DevTools context in the process. Small friction, but it happened a dozen times a day. So I built Network Sniper , a Chrome extension that puts an editable, resend-capable request panel directly inside DevTools. Capture a request, edit it in place, hit resend, and see a diff between the old and new response — no context switch. It's local-first by design: no telemetry, no cloud sync, sensitive headers masked by default. That promise turned out to be more important than I expected, for reasons I'll get to. Launch day: smaller than I hoped, which taught me something I posted a Show HN. It didn't hit the front page — under 10 upvotes, a handful of comments. In the first few hours I got about 15 installs, then growth flattened out almost completely. If you're benchmarking your own launch: don't assume a Show HN that doesn't take off means the product is bad. It might just mean the post didn't catch the algorithm's attention that hour. I posted on a Wednesday; in hindsight I'd try a different day and spend more time on the title. The bigger lesson came from what happened after launch, not the launch numbers themselves. Surprise #1: I accidentally asked for way too much permission To support resending requests to any API the user is debugging (which by definition could be any origin — that's the whole point of the tool), my first shipped version declared: "host_permissions" : [ "*://*/*" ] This works, technically. It also means Chrome shows every installer a scary warning: "Read and change all your data on all websites." For a tool whose entire pitch is "trustworthy, local-first, minimal," that's a bad first impression — and i

Integrating plugins into Claude Code can turn standard AI prompts into automated developer workflows. Based on my recent blog Collection of 10 Amazing Claude Code Plugins on Medium, here is a concise overview of 10 useful plugins and how to install them: 1. UI UX Pro Max Purpose: Provides design guidance for color schemes, font pairings, layout structures, accessibility standards, and responsive UI design. Commands: /plugin marketplace add nextlevelbuilder/ui-ux-pro-max-skill /plugin install ui-ux-pro-max@ui-ux-pro-max-skill 2. GitHub Purpose : Connects directly to your repositories so Claude can navigate codebases, inspect pull requests, and analyze issues without manual copy-pasting. Commands: /plugin install github@claude-plugins-official 3. Code Review Purpose : Leverages multi-agent execution to analyze pull requests for potential bugs and verify adherence to your project's CLAUDE.md guidelines. Commands: /plugin install code-review@claude-plugins-official 4. Superpowers Purpose: Structuring development iterations by guiding Claude through problem discussion, plan creation, test writing, feature implementation, and code review. Commands: /plugin install superpowers@claude-plugins-official 5. Hookify Purpose : Converts prompt guardrails into Markdown rules and automated hooks that warn or block prohibited actions (e.g., debug console outputs). Commands: /plugin install hookify@claude-plugins-official 6. Overnight Dev Purpose: Facilitates long autonomous coding tasks using pre-commit Git hooks running linter checks, automated test suites, and coverage evaluations. Commands: /plugin marketplace add jeremylongshore/claude-code-plugins-plus-skills /plugin install overnight-dev@claude-code-plugins-plus /overnight-setup 7. Claudebase Purpose: Backs up and restores custom Claude Code settings, agents, and rules via a private GitHub repository with support for multiple configuration profiles. Commands: /plugin marketplace add jeremylongshore/claude-code-plugins-plus-ski

Originally published at nlocoding.com 81%of critical vulnerabilities exploited in 2025 had known fixes available for over 60 days. (CISA, 2026) Software doesn’t get hacked because attackers are clever. It gets hacked because maintainers move slow. That’s the ugly truth. AI is changing the speed equation—sometimes for both sides. ⚠️ Common Mistake: Most teams still scan code monthly. Attackers scan it hourly. You can guess who wins. AI tools are shifting vulnerability detection from reactive to real-time in 2026 AI-driven security tools now analyze codebases, dependencies, and infrastructure 24/7, not just during scheduled audits. According to Gartner’s 2026 Security Report, 73% of high-growth SaaS companies use AI to scan new code on every commit. Manual review? Still vital—but it’s too slow for modern CI/CD. AI platforms like GitHub Copilot Security, Snyk Code, and DeepCode flag vulnerabilities within seconds of a pull request. Miss a critical SQL injection? The tool pings you before your coffee cools. Actionable takeaway: Set up AI scanning to run on every code push, not just once a week. Your future self will thank you. 73%of SaaS companies use AI scanning on every commit (Gartner, 2026) False positives are the #1 friction point for AI vulnerability tools The data shows: 62% of security teams cite "alert fatigue" as their top frustration with AI code scanners (Forrester, 2026). An overzealous bot flags everything as a risk, drowning real threats in noise. Snyk Code introduced context-aware filtering in 2025, cutting false positives by 41%—and saving teams an average of 14 hours per month. Here’s what actually works. Choose tools with explainable AI and granularity controls. Don’t trust black boxes. The best platforms let you tune sensitivity and review flagged lines with context—like DeepCode’s code path visualizations. Actionable: Audit your current alerts. If your team ignores more than 40% of them, you’re overdue for a switch. 💡 Pro Tip: Reduce false positives

AI applications used to be relatively simple. A user sent a prompt. An application sent that prompt to a model. The model returned an answer. The application displayed it. That architecture is changing quickly. Modern AI applications increasingly retrieve information, call external APIs, execute tools, interact with databases, invoke multiple models, run background tasks, maintain state, and sometimes delegate work to other AI agents. At that point, you are no longer building a simple application with an AI feature. You are building a distributed system. This shift is one of the most important architectural changes happening in software engineering today. Google Cloud's recent work on distributed AI agents describes architectures where specialized agents operate as separate services and communicate through orchestration layers. OpenAI's agent guidance similarly describes systems built around models, tools, orchestration, guardrails, and potentially multiple agents. The interesting part is that this transformation is happening even when developers do not intentionally choose a distributed architecture. The Simple AI Application Architecture Consider a basic AI-powered application: User | v Frontend | v Backend | v LLM API | v Response This is straightforward. The backend receives a request, sends it to a model, receives the result, and returns it to the user. There are already challenges around latency, cost, authentication, rate limits, and error handling, but the architecture remains relatively easy to reason about. Now imagine adding a few real-world capabilities. The AI needs to: Search the web Read company documents Query a database Call an external API Remember previous interactions Generate structured output Run background jobs Validate its own output Ask another model for verification The architecture starts looking very different. +----------------+ | Web Search | +-------+--------+ | v +--------+ +----------------+ +------------+ | User +------->| AI Backen

Most teams accept a chatbot the same way: they ask it a handful of questions, the answers look reasonable, and the service is signed off. That procedure proves almost nothing. The short answer Evaluating a Persian-language assistant properly needs three things: a fixed set of questions replayed identically every time, an explicit assertion for each one about which source the answer must come from, and response time measured separately from network time. Without all three, any change to the system can break something nobody notices. "The answer looked fine" is not a criterion A retrieval or generation system almost always returns something. If it does not recognise the topic it returns a default; if it recognises the wrong topic it returns an answer that is correct in itself and irrelevant to the question. The second failure is the more deceptive one, because it reads well. In our own evaluation, the question do you offer enterprise training? was answered with the project-timeline text — entirely accurate, entirely unrelated. Anyone reading only the answer sees nothing wrong. The fix is for each test case to assert not "the answer was good" but that the answer contains a specific marker: the path of the page it should point to, a distinctive phrase from the reference text, or the contact number. A fluent irrelevant answer then fails. // Not this — it passes for any non-empty string: assert ( answer . length > 0 ); // This — it fails a fluent answer that came from the wrong place: assert ( answer . includes ( " /chatbot-karaj " )); Build a question set, not a few scattered checks What worked in practice was a list where every entry carries four fields: the question text, the language, a string that must appear in the answer, and a label saying what the case is testing. const CASES = [ { q : " آموزش سازمانی دارید؟ " , lang : " fa " , expect : " /enterprise-ai-training-karaj " , why : " enterprise vs project timeline " }, { q : " چت‌بات چقدر طول می‌کشد؟ " , lang : " fa

How a failing Web Security Academy lab led to a root-cause analysis of a hidden bug JWT Editor was shortlisted for "Best Auth & Access Control" in PortSwigger's 2026 Burp Suite Extension Awards . This is the story of finding a silent bug inside it. Usually, when something goes wrong, your first instinct is to look at yourself. What did I do wrong? Which step did I miss? It takes a lot to get to the point where you seriously consider that the mistake isn't yours at all: it's the tool's. It's a bit like a developer insisting their code is broken because of VS Code itself. Especially when everyone around you is saying the opposite, and your own eyes keep telling you the same thing they're saying. But sometimes you have to hold onto an old piece of advice: "Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth." — Arthur Conan Doyle (Sherlock Holmes) This is the story of how a training lab that "shouldn't have been failing" turned into a fifteen-hour investigation, a silent bug, and a GitHub issue against the #1 most popular extension in the Burp Suite BApp Store as of today. Some Background: What Is JWT Algorithm Confusion? Before the story makes sense, you need the theory behind it. JWT algorithm confusion is a class of vulnerability that stems from how some backend libraries implement token verification. Some implementations write code like this: publicKey = < public - key - of - server > ; token = request . getCookie ( " session " ); verify ( token , publicKey ); The problem is that if the server receives a token signed with a symmetric algorithm like HS256 instead of the expected asymmetric RS256, some libraries' generic verify() method will happily treat the public key (which is, by definition, public and known to anyone) as if it were an HMAC secret. If an attacker can get their hands on that public key, they can sign their own token with it using HS256, and the server will trust it. If you want the full technical breakd

From a founding engineer in a startup: Don't refactor or do more work than needed unless it's your own company. Prioritize your health and learning. In a traditional job, you're a number for management, and when things get hard, it's all over. Choose your game. Freelancing, consulting, and startup building are about finding clients and solving problems fast. Corporate is about having a great CV, networking with companies, and DSA. There's no perfect path here. Put yourself out there on social media. Don't let your reputation rely on one company; let the world know who you are and what you do. Learn how to communicate and ask high-quality questions. Never create assumptions about anything. Always be building and learning. If your job is not challenging you enough, challenge yourself. Try a new tech stack, get into a new industry, or try to dive deeper into the fundamentals of the tech you use daily (databases are interesting NGL). Read books about everything you can, not just technical ones. Psychology, sales, marketing... Coding is only a part of the job; the rest is people. AI won't replace you if you prepare. Master the fundamentals, develop technical taste, stay flexible to work across the full stack, and understand systems design, trade-offs, scope, and the product you are working on. I learned this the hard way, managing teams, pivoting the business, dealing with executives, working with on-call rotations, and taking care of 2 major apps in production

Seniority in an interview is not measured by how much you say. Every answer below is correct. Only one of each pair gets you the offer, and the difference is smaller and more learnable than most people expect. When engineers ask what a senior answer sounds like, they usually get told to be more confident, or to talk about impact. That advice is not wrong but it is unusably vague. Here is something more concrete. In pair after pair below, the senior answer differs in the same four ways: it names the mechanism underneath, it points at a specific situation rather than the general case, it volunteers the cost, and it says what it would measure. Nothing else. Once you can see it, you can do it. 1. JavaScript closures What is a closure? Junior answer: A closure is a function that remembers the variables from the scope where it was defined, so it can still use them later even after that function has returned. Senior answer: It is a function together with a reference to the scope it was created in, so the variables it captured stay alive on the heap instead of dying with the call. That is what makes module patterns and hooks work, and it is also the classic memory leak: hold a closure over something large in a long-lived handler and it is never collected. It also explains the loop bug people hit with var, since one shared binding gets captured instead of one per iteration. The follow-up here is almost always the loop bug or the leak. If you volunteered both, you have already answered it. for ( var i = 0 ; i < 3 ; i ++ ) { setTimeout (() => console . log ( i ), 0 ); } // 3, 3, 3 -- one binding of i, shared by all three closures for ( let i = 0 ; i < 3 ; i ++ ) { setTimeout (() => console . log ( i ), 0 ); } // 0, 1, 2 -- let creates a fresh binding per iteration The version of this that gets shown in interviews. Knowing that it prints 3, 3, 3 is table stakes; being able to say why in terms of bindings is the answer. 2. React re-renders How would you fix a slow React page? Ju

The Challenge I wanted to prove that a complete streaming platform could be built with zero monetary investment . No AWS credits. No paid hosting. Just free tiers, automation, and a lot of JavaScript. The result: 161+ anime titles, 2,733 episodes, 15 languages, and a full admin panel – all running on $0/month infrastructure. The Stack Layer Technology Frontend Next.js 14, React, TypeScript, Tailwind CSS Backend API Cloudflare Workers (serverless) Database Cloudflare D1 (SQLite) + Supabase (PostgreSQL) Cache Cloudflare KV (< 50ms response time) Auth Supabase Auth Notifications Firebase FCM Video Player HLS.js with custom CORS-proxy bypass Hosting Vercel (frontend) + Cloudflare Workers (API) Infrastructure cost: $0/month. Yes, really. The Hard Parts 1. HLS Streaming with CORS Bypass Video streams (M3U8 playlists) from third-party sources often block cross-origin requests. I built a custom proxy route that: Fetches the M3U8 playlist Rewrites all segment URLs to go through the proxy Streams back the modified playlist to the client Handles CORS headers properly The proxy handles both .m3u8 playlists and binary segments ( .ts , .m4s ) while preserving Range headers for partial content. Code snippet – proxy playlist rewriting: javascript const rewritten = text .split(/\r?\n/) .map(line => { const trimmed = line.trim(); if (!trimmed || trimmed.startsWith('#') || trimmed.includes('/api/proxy')) { return line; } try { const resolved = new URL(trimmed, baseUrl).toString(); return `/api/proxy?url=${encodeURIComponent(resolved)}`; } catch { return line; } }) .join('\n');

Note: this is the fourth post in an ongoing series where our small editorial team tests AI tools in real workflows and writes down what we find. No affiliate links. No "sponsored by" disclaimers to hide. We pay for the tools we review, including this month's experiment, which cost us about $190 in subscriptions and a fair amount of patience. The setup I spent most of August and September doing the same two jobs across eight AI coding tools: building a small internal dashboard (React + a Node API) and maintaining an older Python service at work. Same tasks, same files, same me. The tools were GitHub Copilot, Cursor, Codeium, Tabnine, Replit AI, v0, Bolt, and Lovable. Why those eight? Because those are the ones people actually argue about in our developer group chats — and the ones a colleague keeps asking me to "just try already." I also wanted to answer one question that none of the marketing pages answer: what happens after the first week, when the novelty wears off and the tool has to earn its place in a daily workflow? Quick background so you know where I'm coming from: I'm a working developer, not a journalist. Ten years mostly backend, some frontend when I have to. I'm skeptical of anything that promises to write my code for me, and I've been burned before by autocomplete that produces confident nonsense. The short version If you only take one thing from this: Copilot is still the safest default, Cursor is the most capable if you'll actually use its chat properly, and the no-code app builders (Bolt, Lovable, v0) are not for me — but they're genuinely impressive for people who don't live in an IDE. Everything below is the longer version with the boring details, including the stuff that surprised me. GitHub Copilot: the boring, reliable choice I started with Copilot because it's what most of my team already had. The completions are fast and mostly invisible — which is the point. It suggests the next line or two, you tab, you move on. In the Python service, it was

A fast score is not necessarily a comparable score Browser-based reaction tests are useful, but display refresh rate, input latency, browser scheduling, and device setup all influence the result. Instead of asking “What is my universal reaction time?”, ask: “How does my performance change when I repeat the same test under similar conditions?” Treat a score as a personal benchmark Use the same device, input method, browser, and display mode when possible. Complete several rounds, compare a median or typical result, and look for trends rather than one lucky attempt. Build for the feedback loop Good practice tools make it easy to repeat a task, see what was measured, and compare a new result with a previous personal best. A reaction game is a performance exercise, not a medical or neurological assessment. I built ReflexPeak around this idea. It is a free browser collection with reaction, click-speed, aim, memory, and focus tests. Results stay in the browser, so the emphasis is on a simple personal benchmark rather than a global claim about someone’s reflexes. A practical testing routine Pick one test and one device. Complete several rounds rather than chasing one result. Record the median or typical result. Repeat on another day under similar conditions. Look for a trend, not a verdict. What do you use when you want to make a browser-based measurement more consistent?

Every solo dev dreads opening their inbox to this: "Your project was suspended because it engaged in abusive activity consistent with hijacking resources." Within hours, an unauthorized bot scraped one of my Gemini API keys ( Generative Language API Key3 ) and burned hundreds of dollars in automated, high-frequency requests. Google's automated security tripwires immediately froze my entire project. The Post-Mortem 📉 The Cause : The key was accidentally exposed during a rapid deployment cycle. Scraping bots snatched it within minutes. The Damage : An instant surge to nearly HK$300 in a single day, followed by a total project lockout that took down live user sessions. The Fix : Deleted the compromised key immediately, moved all AI interactions behind server-side Next.js route handlers with rate limiting, and configured aggressive billing budget alerts. What I Was Building: RadioShadow 📻 The compromised key powered RadioShadow — a web app designed to break the dreaded "Intermediate Plateau" in language learning. Textbook apps make you feel confident, but real-world radio—packed with slang, fast speech, and overlapping voices—is an entirely different beast. RadioShadow solves this through the Shadowing technique : Global Radio Streams : Tap into unedited live broadcasts worldwide. Real-Time Subtitles & AI Feedback : Low-latency transcription, live translations, and pronunciation scoring directly through the mic. "✨ Help Me Choose" Wizard : A conversational selector that matches you to the right station based on language and vibe, avoiding the paradox of choice. Tech Stack & Lessons 🛠️ Stack : Next.js (App Router), Tailwind CSS, Framer Motion, Web Audio API, Gemini API, Firebase. Key Lesson : Never let API keys touch client-facing bundles, even for "quick local tests." Always proxy calls through authenticated, rate-limited backend routes. The app is back up at radioshadow.ai.studio (free live streams available to test). How does the audio stream latency feel on your end,

A reader searches for help opening a puzzle box. The result supplies the answer in its preview, includes a later character reveal in the heading, and never explains whether the solution was actually verified. A horror-game guide can fail in two separate ways: it can reveal more than the reader wanted, or express more certainty than its evidence supports. I would treat those as distinct content properties. Identify the two editorial decisions The puzzle page on The Skin Stapler Wiki https://theskinstapler.com illustrates the distinction. It publishes a numeric solution directly in its introduction and a section heading. Elsewhere, it explicitly leaves a tarot-card sequence unconfirmed because the available evidence does not establish the accepted order. It also distinguishes two possible contexts behind searches for a “blood puzzle.” These are useful observations for a design exercise. The page makes some uncertainty visible, while the direct answer placement suggests an opportunity to give readers more control over spoilers. My proposed design would answer two questions for every content block: How much does this reveal? What supports the claim? A verified answer can still be an unwanted spoiler. A vague hint can still be wrong. One label cannot stand in for the other. Model spoiler scope and evidence status separately For a small publishing system, I would begin with two independent fields. Spoiler scope might distinguish general orientation, a local puzzle hint, an exact solution, and a story reveal. Evidence status might distinguish an observed result, a published source claim, an editorial inference, and an unresolved question. These categories are proposed editorial choices, not descriptions of the site’s implementation. Consider a hypothetical puzzle entry. Its first paragraph points readers toward a nearby clue. Its second explains how to interpret that clue. Its third gives the accepted input. Those paragraphs have different spoiler scopes even if they all r

A player opens a warehouse guide because deliveries are not working. The page explains warehouses, lists equipment, and mentions staffing. Yet the player still has to work out which condition to check first. For developers building documentation sites, that gap is worth designing around: a reader needs an explanation that leads to a decision. Start with the question the page must resolve The warehouse page on my independent fan site, Big Ambitions Wiki bigambitionswiki.com, provides a concrete example. It presents a quick answer, then separates its content into an explanation, setup guidance, version limitations, and sources. It also links to related pages about warehouse layout, pallet shelves, and delivery. The opening explanation appears again in several places, including the quick answer and the main text. Those observations suggest a useful design exercise: keep the context, but make each subsequent section answer a different question. For a troubleshooting page, I would define the reader’s goal before choosing the template. “Understand warehouses” is broad. “Identify the next condition to inspect when distribution fails” gives the page a clearer job. That goal could produce three reading paths: Explain the purpose of the system. Walk through an initial setup. Diagnose an existing setup. These paths can share reference material while having different entry points. A reader troubleshooting an established operation should be able to reach the diagnostic section directly. Describe prerequisites as relationships A list of requirements leaves an important question unanswered: how do those requirements connect? For a hypothetical distribution guide, I would describe each dependency using four fields: Condition: what must be present or configured. Relationship: which other part of the workflow it connects to. Observation: what the reader can inspect. Next step: where to continue if the condition is missing. This is a proposed documentation model, not a description of

I spend a lot of time in the AI space -- reading papers, building things, talking to engineers who are actually shipping. And there is a gap between what the demos show and what production systems actually look like that nobody is being fully honest about. So here is my honest take on where things actually are. The Problem With How We Talk About AI Agents Everyone is calling everything an "agent" right now. A function that calls a tool? Agent. A chatbot with memory? Agent. A script with a loop? Agent. This dilution is not just semantic. It is causing real engineering mistakes. When you do not have a precise definition for what you are building, you end up over-engineering simple pipelines and under-engineering genuinely complex ones. I have seen teams spend weeks adding "agentic" orchestration to workflows that would have been fine as a single well-structured prompt. Here is the definition I keep coming back to: an agent is a system that has an objective, not just an instruction. It decides what to do next. It handles failure. It knows when it is done. Everything else is just a fancy function call. 🟢 If your system needs a human to tell it each step, it is not an agent. It is a chat interface. 🔵 If your system can recover from a failed tool call and try a different approach, you are getting somewhere. ✅ If your system can decompose a goal into subtasks and delegate them, that is the real thing. What Is Actually Happening in Production Right Now The honest picture from teams I follow and talk to: Most real agent deployments are narrow. They do one thing well. Customer support triage. Document extraction. Code review on a specific codebase. They are not general-purpose reasoning engines. They are purpose-built pipelines with some intelligence in the decision layer. The teams getting good results are not chasing the latest model release. They are obsessing over: ☑️ Tool design -- what can the agent actually call, and how clean is the interface ☑️ Failure handling -- wh

I spend a lot of time in the AI space -- reading papers, building things, talking to engineers who are actually shipping. And there is a gap between what the demos show and what production systems actually look like that nobody is being fully honest about. So here is my honest take on where things actually are. The Problem With How We Talk About AI Agents Everyone is calling everything an "agent" right now. A function that calls a tool? Agent. A chatbot with memory? Agent. A script with a loop? Agent. This dilution is not just semantic. It is causing real engineering mistakes. When you do not have a precise definition for what you are building, you end up over-engineering simple pipelines and under-engineering genuinely complex ones. I have seen teams spend weeks adding "agentic" orchestration to workflows that would have been fine as a single well-structured prompt. Here is the definition I keep coming back to: an agent is a system that has an objective, not just an instruction. It decides what to do next. It handles failure. It knows when it is done. Everything else is just a fancy function call. 🟢 If your system needs a human to tell it each step, it is not an agent. It is a chat interface. 🔵 If your system can recover from a failed tool call and try a different approach, you are getting somewhere. ✅ If your system can decompose a goal into subtasks and delegate them, that is the real thing. What Is Actually Happening in Production Right Now The honest picture from teams I follow and talk to: Most real agent deployments are narrow. They do one thing well. Customer support triage. Document extraction. Code review on a specific codebase. They are not general-purpose reasoning engines. They are purpose-built pipelines with some intelligence in the decision layer. The teams getting good results are not chasing the latest model release. They are obsessing over: ☑️ Tool design -- what can the agent actually call, and how clean is the interface ☑️ Failure handling -- wh

Not "AI-assisted." Not "copilot suggestions I edited." I mean I made a rule: for 30 days, I don't...

Start a Flask app and the terminal prints a familiar line: "WARNING: This is a development server. Do not use it in a production deployment." Yet plenty of desktop apps bundle that same local Flask server as their actual runtime and keep it running on the user's machine for the life of the session. That looks like ignoring the warning outright, but the underlying assumptions have actually changed. This article works through what has to change for that warning to become safe to set aside — and what you still have to handle yourself, or it turns into a real bug. Note: WSGI (Web Server Gateway Interface) is the standard interface between a Python web application and the server that runs it. Flask itself builds the WSGI application; the part that actually accepts and serves HTTP requests is a separate, swappable component. By default, development uses a lightweight built-in server (Werkzeug), while production deployments normally swap in a dedicated production WSGI server such as Gunicorn. The warning is about an unpredictable crowd of clients What that warning is really about is a public-facing web service: handling concurrent traffic from an unknown number of clients, minimal built-in hardening, and no multi-worker process model for load distribution. In short, "not strong enough to serve the open internet." Using Flask as a desktop app's backend changes that premise entirely. The server binds only to 127.0.0.1 (loopback) and is unreachable from any external network. The only client hitting it is a single browser tab running on the same machine — not an unpredictable crowd, but one tab the user opened themselves. Under that condition, most of the dev server's weaknesses simply stop applying. The flip side matters just as much: accidentally binding to 0.0.0.0 makes the server reachable from any other device on the same LAN, and that premise collapses. When Flask is running as a desktop app's backend, binding strictly to loopback has to be an explicit, deliberate choice

For over a decade, the .mobi format was synonymous with Amazon Kindle. If you bought an independent eBook, downloaded a classic from Project Gutenberg, or received an Advance Reader Copy (ARC), you loaded it onto your Kindle as a MOBI file. However, in late 2022 and throughout recent firmware updates, Amazon formally phased out MOBI support for its popular Send to Kindle service in favor of EPUB . In this article, we’ll explore the technical reasons behind Amazon’s deprecation of MOBI, why standard cloud-based converters pose severe privacy risks, and how client-side web technologies allow fast, 100% private in-browser conversion. The Evolution: Why Amazon Retired MOBI To understand why MOBI had to go, we have to look back at its origins: PalmDOC Roots (1990s - 2000s): MOBI was created by Mobipocket in 2000, built on the PalmDOC format designed for early handheld personal digital assistants (PDAs). It relied on an ancient, monolithic database structure known as the Palm Database ( .pdb ) format. Amazon's Acquisition (2005): When Amazon prepared to launch the first Kindle in 2007, they acquired Mobipocket and adapted the MOBI format into AZW (Kindle Format 7). Typography & Modern Layout Limitations: MOBI was never designed for modern typography. It lacked native support for complex CSS layouts, media queries, scalable vector graphics (SVG), embedded modern fonts, hyphenation dictionaries, and dynamic dark mode styling. The Rise of EPUB 3: The International Digital Publishing Forum (IDPF) and the W3C standardized EPUB as the open industry benchmark. EPUB is essentially a structured, compressed web package (HTML5, CSS3, XML metadata, and SVG) packaged inside an Open Container Format (OCF) ZIP container. Because modern Kindle readers render KF8 (AZW3) and KFX engines that translate HTML/CSS natively, maintaining legacy MOBI parsers created unnecessary rendering inconsistencies. Amazon officially made EPUB the required format for Send to Kindle. The Hidden Danger of Trad

Deploying a web project can sometimes feel complicated, especially when you have to configure servers, upload files, and manage deployment manually. Fortunately, Tencent EdgeOne Makers provides a much simpler workflow. If your project is already stored on GitHub, you can connect your GitHub account, select your repository, and deploy it with just a few steps. In this article, I’ll show you how to deploy a web project using the GitHub integration in EdgeOne Makers. 1. Prepare Your Project on GitHub Before starting, make sure your website or project has already been uploaded to a GitHub repository. For example: For a simple HTML, CSS, and JavaScript project, you can directly upload these files to GitHub. If you are using a framework such as React, Vue, or Vite, make sure your repository contains the required project files, including package.json. 2. Open Tencent EdgeOne Makers Go to Tencent EdgeOne Makers and sign in with your account. From the Makers dashboard, choose the option to create a new project. Instead of uploading your files manually, select the option to import a project from a Git repository. This is one of the most convenient features because EdgeOne Makers can connect directly to your source code repository. 3. Connect Your GitHub Account Select GitHub as your Git provider. You will then be asked to authorize EdgeOne Makers to access your GitHub account. Follow the authorization process and give the required permissions. After your GitHub account has been connected successfully, Makers will be able to display the repositories that are available to your account. 4. Select Your Repository Now choose the GitHub repository containing your web project. After selecting the repository, EdgeOne Makers will analyze the project and determine the appropriate deployment configuration. For common frameworks, Makers can automatically identify the framework and provide suitable build settings. 5. Deploy Your Project Once the repository has been selected, review the de