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VERCEL_EXPERIMENTAL_DEV_SKIP_LINK: Stop Dev Link Hangs

TL;DR If the Vercel CLI keeps trying to open a dev link against your Vercel project during local next dev runs, set VERCEL_EXPERIMENTAL_DEV_SKIP_LINK=1 in the shell that launches the dev server, or add it to .env.local at the project root, and restart the process. The flag is opt-in, all-uppercase, and only affects local CLI behaviour. It never reaches your deployed build, and the production runtime on Vercel does not read it. If the CLI still tries to link after a restart, scroll to Debugging when the skip link isn't working for the version-compatibility and process-tree checks that catch the cases the basic setup misses. I have shipped this flag in three production monorepos and the same four mistakes account for almost every "I set it and it did nothing" report I see. What VERCEL_EXPERIMENTAL_DEV_SKIP_LINK actually does VERCEL_EXPERIMENTAL_DEV_SKIP_LINK is an opt-in environment variable the Vercel CLI honours when it runs alongside a local Next.js dev server. Its job is narrow: tell the CLI to skip the step where it would normally reach out to Vercel and create or refresh a dev link against your Vercel project. A "dev link", in the Vercel sense, is a local connection record that lets vercel dev and some Vercel-only local emulators (KV, Postgres, Edge Config) pull real values from a Vercel project. It is useful when you want production-shaped data during development, and a real annoyance when you do not — for example in CI sandboxes, offline laptops, monorepo workspaces that share a single project, or any time you want next dev to behave like a plain Node process without the CLI wrapping it. The variable is shipped under the VERCEL_EXPERIMENTAL_ namespace, which Vercel uses to mark features that can change between CLI versions. That has two practical consequences: the name must be uppercase with underscores, and you should not build production logic on top of it. I treat it like a local-dev knob, set per shell session, and never check it into CI as a hard dependen

2026-06-27 原文 →
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Prime Day has served up several great deals on 4K TVs

There are three times of year that are best for buying a new TV: leading up to the Super Bowl, Black Friday, and of course now, during Amazon Prime Day. Many of the new 2026 models have been released, and while some will be seeing discounts, the majority of the best deals are going to […]

2026-06-24 原文 →
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Unpacking Manifest V3: Chrome’s Big Extension Shakeup! 🛠️

Hey tech family! 👋 If you’ve noticed your favorite Chrome extensions acting a bit differently lately or if you're a developer currently sweating over a massive codebase rewrite you are experiencing the era of Manifest V3 (MV3) . 🤖 Google has officially pushed the web ecosystem forward by deprecating Manifest V2, making MV3 the absolute standard for how browser extensions behave. But why is this happening, what actually changed, and why is the internet so divided over it? Let’s break it all down in plain English! 👇 🧐 What Exactly is Manifest V3? Think of a "Manifest" as the blueprint file ( manifest.json ) that tells the browser exactly what an extension is, what files it uses, and what permissions it needs to run. Manifest V3 is Google's major architectural overhaul of this system. Its core mission sounds great on paper: improve user privacy, beef up security, and boost browser performance . However, achieving those goals meant rewriting the core rules of how extensions interact with your browser. 🛠️ The Biggest Changes & New Features MV3 isn't just a small patch; it fundamentally alters the underlying extension engine. Here are the headline shifts: Goodbye Background Pages, Hello Service Workers! 💤 In MV2, extensions used hidden, persistent background pages that ran 24/7, hogging your computer's RAM even when you weren't using them. MV3 replaces these with Service Workers. They are event-driven meaning they wake up, execute a task (like clicking an extension icon), and go right back to sleep. Hello, free RAM! 🐏 The Ad-Blocker Shakeup: webRequest vs. declarativeNetRequest 🛑 This is the most controversial change. In MV2, powerful extensions like uBlock Origin used the webRequest API to intercept, read, and block network requests in real-time using complex code. MV3 replaces the blocking version of this with declarativeNetRequest . Instead of letting the extension intercept the data, the extension must now hand Chrome a pre-defined list of rules, and Chrome does the b

2026-06-13 原文 →