标签：#dev

I spent last month migrating 23 client sites from JPEG/PNG to WebP and AVIF. Here's what I wish someone told me before I started. AVIF vs WebP: the real numbers AVIF is about 30% smaller than WebP at the same quality level. But Safari support is still patchy — if your traffic is 40%+ iOS, you need <picture> tags with WebP fallback. No way around it. The biggest win wasn't the format The single biggest reduction came from capping max image width at 1200px and setting quality to 80. One site went from 9.4MB to 318KB per page — a 97% reduction — just from those two settings plus lazy loading. The format switch was the cherry on top, not the cake. Tools I used daily SmartImgKit — quick batch conversions in the browser. No uploads, no signup, drag and drop. Handles the 80% case where you don't need a CLI pipeline. Supports JPG, PNG, WebP, AVIF, GIF, BMP, TIFF. ImageMagick — server-side batch jobs for when you need automation. Squoosh — one-off fine-tuning with visual comparison. Sharp (Node.js) — build pipeline integration. The HEIC surprise Every iPhone user's photos are HEIC. Most web tools crash on them. You need a converter that handles them before the pipeline — SmartImgKit's HEIC converter works locally in-browser, no uploads. The 80/20 rule Format + max width + lazy loading = 80% of the gain. Everything else is diminishing returns. Don't over-engineer it.

A few weeks back I shared some early Zen code examples. Since then, a lot has changed. We're now at v1.1.1 and the language actually has real tooling. What's new: Full CLI with package management zen publish - publish packages directly from CLI zen install - install packages from the registry zen list - browse all published packages with pagination Language improvements Struct support with literals and returns Regex with POSIX ERE ( matchRegex ) File I/O with binary support FFI bindings to C functions 162 stdlib functions across math, strings, fs, os, http, crypto, path utilities Package Registry (v1.0.0) JWT-based authentication GitHub-hosted packages Support for both runnable apps and libraries Semantic versioning The reactive variables concept from the first post is still there (that was my favorite feature), and now you can actually write real programs and share them with the community. Full docs: https://jishith-dev.github.io/zen-doc/site/ Install: curl -fsSL https://raw.githubusercontent.com/jishith-dev/Zen/main/install.sh | bash Next up: HTTP server APIs, better imports, and whatever the community asks for. Open to feedback and collaborators 💻 ✨ zen #programming #compiler #llvm #packagemanager #opensource #programminglanguage

Most multi-tenant email-agent setups give every customer the same caps. Your free-tier user who signed up an hour ago and your enterprise account doing thousands of sends a day hit the exact same daily send limit, the exact same storage ceiling, the exact same retention window. That's fine right up until a free trial account starts hammering your infrastructure, or an enterprise customer files a ticket because their agent stopped sending at noon UTC and nobody can explain why. Free-tier and enterprise tenants shouldn't share the same caps. They have different risk profiles, different contractual obligations, and different billing. The trick is to make the quota a property of the tier, not a property of each individual account — so when you provision a new tenant you don't compute limits, you just drop them into the right bucket and the limits come along for free. With Nylas Agent Accounts that bucket is a workspace , and the caps live on a policy you attach to it. Set up one policy per tier, attach each to its tier's workspace, and every Agent Account in that workspace inherits the policy's send, storage, and retention limits automatically. No per-account configuration, no drift. I work on the Nylas CLI, so the terminal commands below are the exact ones I reach for when I'm wiring this up. As always, I'll show both the raw HTTP call and the CLI equivalent for every step, because half of you live in scripts and the other half live in your app code. What you actually get An Agent Account is just a Nylas grant with a grant_id — a managed mailbox that can send and receive on a domain you've registered. Everything grant-scoped works against it: Messages, Drafts, Threads, Folders, the lot. There's nothing new to learn on the data plane. A policy is a reusable bundle of limits and spam settings. One policy can govern many accounts. The limits we care about for tiering are: limit_count_daily_email_sent — how many messages an account can send per day. limit_storage_total — t

Unit converters are everywhere online, but they all seem to either require an account, run ads that cover half the screen, or send your input to a server for no reason. I built one that runs entirely in your browser, with no dependencies, no tracking, and no round-trips. 👉 https://unit-converter-dev.pages.dev What It Does Seven conversion categories, 70+ units, real-time bidirectional conversion: Category Example units Length mm, cm, m, km, in, ft, yd, mi, nmi, light-year Weight mg, g, kg, t, oz, lb, st, short ton Temperature °C, °F, K, °R Volume ml, l, m³, fl oz, cup, pint, quart, gallon, tbsp, tsp Area mm², cm², m², km², ha, acre, ft², in², mi², yd² Speed m/s, km/h, mph, ft/s, knot, Mach Data bit, byte, KB/KiB, MB/MiB, GB/GiB, TB — both SI and binary Features: Bidirectional — type in either field, the other updates instantly Swap button — flip from/to with one click All-units panel — see your input converted to every unit in the category simultaneously Formula display — shows the conversion factor (e.g. "1 Mile = 1.609344 Kilometer") Zero dependencies — single HTML file, no build step, no npm Implementation Notes Linear vs. non-linear conversions Most unit conversions are linear: multiply by a factor to get to the base unit, divide by another factor to get to the target. The approach: function convert ( catKey , fromUnit , toUnit , value ) { const base = toBase ( catKey , fromUnit , value ); // → base unit return fromBase ( catKey , toUnit , base ); // base unit → target } function toBase ( catKey , unit , value ) { const u = CATEGORIES [ catKey ]. units [ unit ]; if ( u . toBase ) return u . toBase ( value ); // non-linear (temperature) return value * u . factor ; } Temperature is the classic non-linear case. You can't just multiply to convert between Celsius, Fahrenheit, and Kelvin — you need offset arithmetic: temperature : { units : { C : { toBase : v => v + 273.15 , // °C → K fromBase : v => v - 273.15 , // K → °C }, F : { toBase : v => ( v - 32 ) * 5 / 9 + 2

Middleware in PAGI A port of the sample app from What Is Middleware? — which builds the same three-layer stack in Plack/PSGI (Perl) and Starlette/ASGI (Python) — to PAGI , an async, ASGI-style application interface for Perl. The app is deliberately tiny but exercises the three things middleware exists to do: Logger — wrap the request, time it, log method/path in and status/duration out. Authenticator — inspect a header, inject context for downstream layers on success, or short-circuit with a 401 on failure. ProfileRouter — answer one specific route from inside the stack, reading the context the Authenticator injected. All code below was run under perl-5.40.0 with PAGI::Test::Client ; the log lines and responses shown in Running it are the actual captured output, not hand-written. The PAGI middleware contract A PAGI application is, in the spec's words, "a single coderef returning a Future": an async sub over the ($scope, $receive, $send) triple — the same shape as ASGI. $scope is the per-connection metadata hash ( type , method , path , headers , …), $receive pulls inbound events, $send pushes outbound ones ( http.response.start , then http.response.body ), and the Future it returns resolving is what tells the server the response is complete. Middleware is just as plain: a subroutine that takes an application and returns a new application, wrapping the inner one. That is the whole spec-level contract — app in, app out: sub middleware { my ( $app ) = @_ ; return async sub ($scope, $receive, $send) { # ... before ... await $app -> ( $scope , $receive , $send ); # call the inner app # ... after ... }; } A middleware propagates the inner app's Future — its completion and any exception flow straight through — and never reads its return value, which the spec defines as inert; to observe or rewrite the response it wraps $send instead, and to add per-request context it clones $scope (top-level edits stay visible downward only). PAGI::Middleware , from PAGI-Tools rather than

Figma shipped native Motion. A real animation timeline, right inside the file. When that landed, a lot of people emailed me some version of the same question: "is MotionKit dead now?" Fair question. My honest first reaction was a quiet "...maybe." But the more I used native Motion, the clearer it got — it's genuinely good, and it's not trying to be everything. No physics. No frame-by-frame. No Lottie export. No morphing. So the move was never to compete with it. The move was to bridge to it — let the two tools hand work back and forth, and let MotionKit be the power layer that does the stuff native Motion can't. So that's what this update is. A two-way bridge between MotionKit and Figma's native Motion. Here's everything it does, and exactly how to use it. The short version Four moves, one little control in the header: Import native Motion into MotionKit as real, editable keyframes Live sync (read-only by default) so changes in Figma Motion flow into MotionKit as you work Link for export so your native Motion renders inside a Lottie without duplicating anything Push MotionKit keyframes back into native Motion — including motion you baked from the physics engine And the headline trick: bake a real physics drop in MotionKit, then push it into Figma Motion as native keyframes. Native Motion has no physics engine. Now it kind of does. First, find the bridge Look at the top-right of the toolbar, next to the Pro star. There's a small badge: the MotionKit diamond, an arrow, and the Figma logo . That little arrow is the status. You don't have to open anything to read it: faint dotted line → not connected arrow pointing into MotionKit → reading from Figma, live, read-only arrows on both ends → two-way, MotionKit also writes back If there's native Motion sitting on the current frame but you haven't connected, you'll see a small purple dot on the Figma side — that's "hey, there's something here to import." Click the badge to open the bridge. That's the whole mental model. Dire

Most job search tools focus on submitting more applications. I wanted to solve a different problem: reaching the people actually making hiring decisions. So I built PitchHired , an AI-powered platform that helps job seekers find hiring managers, generate personalized outreach emails, review them with AI, and send them from their own Gmail account on a business-hours schedule. The goal isn't to replace the job search, it's to remove repetitive work while keeping the candidate in control. I also chose a one-time credit model instead of monthly subscriptions because job seekers shouldn't have to keep paying while they're between opportunities. PitchHired is still evolving, and I'd genuinely appreciate feedback from fellow developers. What features would you want in a tool like this, and what would make you trust (or not trust) AI-assisted job search?

5 Ferramentas de IA Gratuitas que Todo Desenvolvedor Deveria Usar em 2026 A inteligência artificial não é mais o futuro — é o presente. E o melhor: muitas ferramentas poderosas são gratuitas . Neste artigo, vou compartilhar 5 ferramentas de IA que transformaram minha produtividade como desenvolvedor. 1. 🤖 GitHub Copilot (Gratuito para opensource) O Copilot se tornou indispensável para qualquer desenvolvedor. A versão gratuita oferece: Autocomplete de código em tempo real Sugestões contextuais inteligentes Suporte a +30 linguagens Como usar: Instale a extensão no VS Code e comece a digitar. O Copilot sugere código automaticamente. # Exemplo: Digite um comentário e o Copilot gera a função # Função para ler JSON de um arquivo def read_json_file ( filepath ): import json with open ( filepath , ' r ' ) as f : return json . load ( f ) 2. 🔍 Perplexity AI (100% Gratuito) Pesquisa com IA que cite fontes. Perfeito para: Pesquisar documentação Entender conceitos complexos Encontrar soluções para bugs Dica: Use o modo "Pro Search" para respostas mais detalhadas. 3. 🎨 v0.dev (Vercel) — Frontend com IA Gere componentes React/Next.js com descrições em linguagem natural. # Exemplo de prompt: "Um card de produto responsivo com imagem, preço e botão de compra" O v0 gera o código completo, estilizado com Tailwind CSS. 4. 📝 Notion AI (IA gratuita integrada) O Notion permite usar IA para: Resumir documentos longos Gerar templates de código Traduzir conteúdo automaticamente Criar documentação técnica Atalho: Pressione Ctrl/Cmd + J para ativar a IA em qualquer bloco. 5. 🔧 Cursor (Editor com IA) O Cursor é um fork do VS Code com IA integrada nativamente: Chat com IA sobre seu código Edição por comando ("adicione tratamento de erros") Compreensão automática do contexto do projeto Diferencial: Ele lê todo seu projeto e entende o contexto, não apenas o arquivo atual. 💡 Dica Extra: Combinando as Ferramentas O segredo não é usar uma ferramenta isolada, mas combiná-las : Perplexity para pesquisa

Headline: The wins come from context, not cleverness. An AI with your codebase, your design system, and your deploy logs in scope writes code that ships. Without that scope, it writes plausible code that doesn't. Two years ago, AI coding tools were autocomplete with attitude. In 2026 they are a credible second engineer — provided you build the workflow around them. This is the workflow I run today at Devya Solutions and on personal projects like eng-ahmed.com . The Stack Claude Code in the terminal — long-horizon, multi-file edits with skills and subagents. MCP (Model Context Protocol) servers for live access to docs, deployments, browser, and design tools. Cursor or VS Code for inline edits when I want to stay in the IDE. Why Context Is Everything The single highest-leverage move in AI-assisted dev is feeding the model the right context. MCP servers do this without prompt stuffing. Docs MCP — pulls current library docs at call time, so the model doesn't hallucinate the Tailwind v3 API in a v4 codebase. Browser MCP (Claude-in-Chrome) — lets the agent open the running dev server, screenshot the page, and verify the change actually rendered. Vercel MCP — fetches deploy logs and runtime errors directly. No more pasting logs. Context-mode MCP — keeps file scans, search results, and command output in a sandbox, only surfacing what's relevant to your conversation. A Real Workflow The blog page redesign I just shipped was built in a single 45-minute session. Rough flow: State the goal — two sentences, not a spec doc. Let the agent scout — Claude Code greps, reads a few files, proposes a plan. Iterate visually — screenshot the result, feed it back. The agent fixes the sticky-filter scroll bug in one turn. Commit and push — a single cm shortcut runs build, commits, and pushes. Vercel deploys on push. What the Agent Is Still Bad At Holistic taste — it copies the closest example in your codebase. If that's mediocre, the new feature is mediocre. Domain knowledge — it doesn't kn

為什麼那個會「注意你」的展品，反而讓你更想靠近 博物館互動設計的隱形槓桿 東京。 teamLab 展覽入口。 地面是一整片黑色的水面，倒映著數位花朵。 你踏進去。 花朵在你腳步周圍散開，隨著你的移動一圈一圈地綻放和飄落。 你停下來，花也停下來。 你開始走，花就跟著你。 你以為是感應。但仔細看——延遲了大概 0.3 秒。 不是「立刻反應」，是「好像在觀察你，然後才決定」。 你站在那裡又多看了三秒。 你第一個「對」 讓我問你一個問題。 你去過那種「互動博物館」嗎？牆上寫著「請觸摸」，但你碰了之後什麼都沒發生——或者是那種「語音導覽機」，你對著它說話，它說「請靠近一點」。 然後你就失去興趣了。 現在讓我想另一個場景。 一個會動的恐龍骨骼。你站在它面前的時候，它頭轉過來看了你一眼。 你知道這是感應器。你知道工程師設計了「檢測到人」的時候讓它轉頭。 但你還是覺得—— 「它在看我。」 兩種互動，哪一個讓你停留更久？ 你第一個「咦」 這裡有一個秘密。 讓人停留更久的，通常不是「立刻反應」的互動。 是那種「 好像在決定要不要理你 」的互動。 為什麼？ 因為「立刻反應」讓你確認了——「這是機器」。 但「好像在決定要不要理你」讓你的大腦進入了一個不確定的狀態—— 「它真的知道我來了嗎？」 「它在決定什麼？」 「我想看看它決定什麼。」 這個「我想看看」就是互動設計裡最重要的瞬間—— 參與者的好奇心，被啟動了。 玉樹真一郎在《任天堂的體驗設計》裡，分析了一個現象： 《超級馬里奧》裡，當玩家靠近一個問號磚塊，頂了它，沒有任何東西掉下來。 玩家不會覺得「這個遊戲壞了」。 玩家會想：「 為什麼這次沒有？ 」 然後再頂一次。 為什麼「沒有東西掉下來」沒有讓玩家放棄？ 因為設計師在玩家心裡創造了一個「 還沒發生的確定事件 」。 玩家知道「遲早會有東西掉下來」。所以他們願意等待、願意再試一次。 博物館的互動設計也應該這樣。 不是立刻給答案。是讓你相信「答案快來了」，然後讓你一直站在那裡等。 你最後「我要改變做法」 讓我說一個失敗的設計。 一個科技博物館有一面「觸控牆」。牆上有很多按鈕，碰了就會播放影片、發出聲音、變色。 一開始很多小孩去碰。 但大概十五分鐘之後，那面牆就沒人碰了。 為什麼？ 因為碰了 100 次，沒有任何一次比另一次更「值得等待」。 每一次都是立刻發生，每一次都是同樣的結果。 沒有任何一件事需要「決定」。 現在讓我說一個成功的設計。 同一個博物館的另一區，有一面「情緒牆」。 你站在牆前，系統會掃描你的臉——不是真的分析情緒，而是給你一個顏色。 每個人的顏色都不太一樣。 但顏色不是立刻出現的。 大概等了兩秒——然後它慢慢浮現出來。 在這兩秒裡，每個站在牆前的人都沒有動。 他們在等。 他們相信顏色一定會出現。但他們不確定會是什麼顏色。 三個馬上可以用的方向 第一：不要立刻給回饋。 加入一個 0.3 到 2 秒的「思考時間」。 讓互動看起來像「系統在決定」，而不只是「系統在檢測」。 壞掉的燈 vs 正在決定的燈——後者讓人更想站在那裡等。 自己試試看：30 行做出「延遲反應」的燈 // p5.js — 試試延遲回饋的感覺 let lights = []; const DELAY = 12 ; // 幀數延遲（約 0.2 秒） function setup () { createCanvas ( 400 , 400 ); for ( let i = 0 ; i < 5 ; i ++ ) { lights . push ({ history : [], lit : false }); for ( let j = 0 ; j < Math . max ( DELAY , 1 ); j ++ ) lights [ i ]. history . push ( false ); } } function draw () { background ( 30 ); let hovered = floor ( mouseX / 80 ); for ( let i = 0 ; i < lights . length ; i ++ ) { lights [ i ]. history . push ( hovered === i ); if ( DELAY > 0 ) lights [ i ]. history . shift (); lights [ i ]. lit = DELAY > 0 ? lights [ i ]. history [ 0 ] : ( hovered === i ); } // 畫燈泡 noStroke (); for ( let i = 0 ; i < lights . length ; i ++ ) { fill ( lights [ i ].

I'm building TTT -- a terminal text editor and IDE written in Go. Single binary, zero config, runs anywhere. Think VS Code but in your terminal. It has syntax highlighting, LSP integration, a plugin system, an integrated terminal, git integration, etc... The source is on GitHub and I develop it with Claude Code as my pair programmer. This is the story of how a frustrating limitation turned into something genuinely useful: a built-in scripted interaction system that lets AI agents (or anyone) drive the editor like Playwright drives a browser. The problem I was deep in revamping the widget system and building out a Lua plugin API. Phases of work stacking up -- widget rendering, panel support, tree views, input fields, command registration, keybinding hooks. The kind of work where you need to see what's happening. Click a tree node, check if it expands. Open a panel, verify focus moves correctly. Run a plugin, confirm the dialog appears. Here's the thing: Claude Code can run shell commands and read files. It cannot interact with a live TUI session. The editor launches, takes over the terminal, and that's it -- Claude is blind. Step 1: tui-use (what we had) The project already had functional tests using tui-use , a JavaScript library that drives a real terminal binary. It can type, press keys, wait for text to appear, and take snapshots: const tui = await start ( " bin/ttt " , [ " test-file.go " ]); await tui . waitFor ( " test-file.go " ); await tui . exec ( " editor.joinLines " ); const screen = await tui . snapshot (); expect ( screen ). toContain ( " joined line " ); This works. But it's slow -- each test spawns the binary, waits for screen renders, polls with timeouts, and parses terminal escape codes. And critically, it can't click . Mouse events aren't supported. For a widget system with tree views, buttons, and split panels, that's a dealbreaker. Step 2: Debug commands (the workaround) So we added a Debug: Simulate Click command to the editor itself. Open the co

I've been thinking about this problem for a while. Developers and businesses need quality websites fast — but the options are either overpriced custom builds, outdated templates, or starting from scratch every single time. So I decided to build the solution myself. Softchic is a premium template and ready-made website marketplace — production-ready, built on modern stacks, designed to actually look good. This is Week 1 of building it in public. Why Softchic The market exists. Developers need templates. Businesses need websites. But most template stores are either bloated, outdated, or built on stacks nobody wants to touch in 2026. Softchic is different — every template ships with: Modern stack (Next.js, TypeScript, Tailwind CSS v4) Clean, production-ready code Premium design out of the box The name went through 25+ candidates across multiple languages before landing here. Clean, available, memorable — Softchic. The Stack Framework: Next.js 14 (App Router) Language: TypeScript Styling: Tailwind CSS v4 Components: shadcn/ui Payments: Lemon Squeezy (international) + Paystack (Nigeria) Email: Resend Deployment: Vercel Design language: dark and premium — #0D0D0D background, #2563EB blue, #F97316 orange accents. Week 1 — What Got Built ✅ Waitlist page — designed and ready to deploy ✅ Navbar — responsive, dark-themed ✅ WaitlistForm — wired to Resend for email capture ✅ Brand system — colors, typography, full design identity locked ✅ Payment architecture — Lemon Squeezy + IP-based currency detection via ipapi.co with PPP pricing for global fairness The waitlist goes live very soon. Follow me here on Dev.to — I'll drop the link the moment it's live. Early subscribers get first access when the store launches. The launch goal: 200 waitlist subscribers before opening the store. That's the benchmark. No exceptions. What's Next Waitlist page goes live 🚀 Product listing page Template preview system First upload — a SaaS landing page template The Real Talk Building a marketplace fr

In the landscape of modern programming, delimiters serve as the essential scaffolding that organizes logic and defines structure. Among these, curly braces—often referred to as braces or squiggly brackets—occupy a unique position. While they are ubiquitous, they are frequently the source of developer frustration and logic errors. A common pitfall for many programmers is the tendency to treat all delimiters as interchangeable, leading to a fundamental misunder身 of how a compiler or interpreter parses a script. Confusion often arises when developers conflate the purpose of curly braces with those of parentheses or square brackets. For instance, in many languages, curly braces denote a scope or a code block, whereas square brackets handle indexing. However, the nuances become even more complex when examining specific environments like R, where the semantic meaning of a symbol can shift depending on the context—moving from defining a function to facilitating list extraction. Understanding the specific curly braces semantics is not merely an academic exercise in syntax; it is a practical necessity for writing clean, maintainable code. When a developer understands why a brace is used, they can more easily debug nested structures and communicate intent to their teammates. Grasping these distinctions reduces the cognitive load required to read complex scripts and prevents the subtle bugs that emerge when syntax is used incorrectly. Curly Braces vs. Other Delimiters: Semantic Roles in R and Beyond To master programming syntax, one must move beyond recognizing symbols and begin understanding their semantic intent. While many developers treat curly braces as just another set of punctuation, their role is fundamentally distinct from parentheses and square brackets. Understanding the nuance of curly braces semantics is essential for writing logic that is both functional and readable. The Primary Role: Defining Code Blocks In most procedural and object-oriented languages (such as

QR codes look like magic — a grid of black and white squares that encodes anything from a URL to a business card. But how do they actually work? I decided to find out the hard way: implement the full QR Code Model 2 algorithm in vanilla JavaScript, zero external dependencies. The result: QR Code Generator — a free, client-side tool that generates QR codes from any text or URL. 👉 https://qr-code-generator-e83.pages.dev Why No Libraries? I maintain a collection of browser-only developer tools at devnestio . Every tool has the same rule: zero external dependencies. No npm installs, no CDN scripts, no servers. For most tools (JSON diff, Base64 encoder, UUID generator) that's easy. QR codes are different. The spec is a 126-page ISO document. Most developers just npm install qrcode and call it a day. But writing it from scratch taught me more about error-correcting codes, Galois field arithmetic, and matrix encoding than I ever expected. Worth every hour. What the Tool Does Real-time generation as you type (debounced at 80ms) Size selector — 128 × 128, 256 × 256, or 512 × 512 pixels Error correction level — L (7%), M (15%), Q (25%), H (30%) Color picker — any foreground and background color PNG download via canvas SVG download with crisp vector output at any scale How QR Codes Actually Work QR Code Model 2 (the standard you see everywhere) has six major steps. Here's the short version: 1. Data Encoding Text gets encoded into one of three modes based on content: Numeric ( 0-9 ): packs 3 digits into 10 bits — most compact Alphanumeric ( 0-9 A-Z $%*+-./:space ): 2 chars into 11 bits Byte (everything else): UTF-8, one byte per 8 bits The encoder picks the mode automatically and finds the minimum QR version (1–40) that fits the data. function detectMode ( text ) { if ( /^ \d +$/ . test ( text )) return NUMERIC_MODE ; if ( text . split ( '' ). every ( c => ALPHANUMS . includes ( c ))) return ALPHANUM_MODE ; return BYTE_MODE ; } 2. Reed-Solomon Error Correction This is the hard

The question My son was on the sofa with his iPad, poking at the live "Predict the Bracket" game — the whole 2026 World Cup knockout tree on one screen, every slot already filled with the crowd's favourite for that match. Tap a match, see who most people think goes through, watch the picks flow all the way up to a predicted champion. He frowned at it. "Daddy, how do they know which team plays which team? The teams aren't even decided yet." He'd caught something real. The little cards sitting in those slots were only predictions — the crowd's best hunch — but the shape underneath them, who-plays-who and where, was already locked in. Months before a single match kicks off. Fair question. The 2026 World Cup has 48 teams in 12 groups (A through L). The top two of every group go through — that's 24 teams. Then, to round it up to a nice bracket of 32, they also take the 8 best third-placed teams . Twelve groups, but only eight of their third-place teams get a golden ticket. "So you don't know which eight until the very end," he said. "But the bracket's already sitting right there on the screen." "Right." "That's cheating." It isn't cheating. It's one of the prettiest little bits of planning in all of sport, and by the end of the afternoon he understood it better than most adults do. We did it with the dining chairs. The setup, first Before the chairs, my son needed to know where these kids even come from. So we did the boring-but-important part first. A football group is a handful of teams who all play each other. When it's done, the best go forward, the worst go home, and — this is the bit that matters — there's a kid right on the line: the best of the rest , neither safely through nor clearly out. That borderline kid is the star of this whole story. Call them a wandering kid . To learn the trick, let's make the groups nice and small: two groups, A and B, three kids in each — six kids total. In each group the top kid goes straight through to the next round, the bottom ki

I've been building agent workflows for a while, and one capability keeps coming up that the ecosystem hasn't fully reckoned with: letting an AI agent publish a document to the public internet and hand someone a link. It sounds trivial ("save HTML, return a URL"). It isn't. The moment an autonomous agent can mint a public link, you've handed it a primitive that touches access control, data exposure, and reputation. This post is about the design questions that surface once you take that seriously, written by someone who builds in this space. Disclosure up front: I work on Thryvate, a document-sharing tool with an MCP server. More on that at the end, but the problems below are general. The naive version The first version everyone writes is a tool that takes content and dumps it to object storage behind a public CDN URL: publish(html) -> https://cdn.example.com/a8f3c2.html Ship that and an agent can now share its work. It can also now: expose a half-finished draft to anyone who guesses the URL, leave that URL live forever with no way to pull it back, publish something containing a customer's name with zero record of who saw it. For a human hitting "publish" deliberately, those are acceptable defaults. For an agent doing it as one step in a longer plan, they're landmines. What "publish" should actually mean for an agent A few properties turn the naive primitive into something you'd trust an agent to call: 1. Default to private, opt into public. The safe default for an agent-minted link is not "world-readable." It's "only people on this list" or "only people with the password." Public should be an explicit parameter someone has to set, not the fallback. 2. Revocability. Anything an agent publishes, you must be able to un-publish instantly. A live link is a liability with a half-life, and the ability to revoke is what makes it safe to let the agent create them liberally. 3. Expiry as a first-class field. "This link dies in 7 days" should be a parameter on the publish call,

Hello, I'm Maneshwar. I'm building git-lrc, a Micro AI code reviewer that runs on every commit. It is free and source-available on Github. Star git-lrc to help devs discover the project. Do give it a try and share your feedback. A single honeybee has exactly one move: find nectar, fly it home. Impressive aviation. Add a few thousand more bees and something strange happens. Now they're making honey, cooling the hive, and defending the colony against threats ten thousand times their size, with no Jira board, no standup, and nobody handing out tickets. That jump from "can fetch nectar" to "runs a self-regulating honey factory" is the best mental model I've found for multi-agent AI systems . So let's steal it xD First, what even is an "agent"? Before we throw thousands of them at a problem, it's worth pinning down what one actually is. An AI agent is an autonomous system that performs tasks on behalf of a user (or another system) by designing its own workflow and using available tools . Three things decide how good an agent actually is: The LLM powering it i.e the brain. Its tools which is the hands. The reasoning framework is how it turns tool outputs into the next decision. A single agent is fine. It's our lone bee, and it can do real work. But ask it to research a topic, run heavy calculations, scrape five websites, and write the summary, and you start to feel the ceiling. Multi-agent systems: bees, but for compute A multi-agent system keeps each agent autonomous but lets them cooperate and coordinate inside a structure . The magic isn't any single agent, it's the choreography between them (claude which is famous for that). And there are a few classic ways to choreograph it. 1. The decentralized network (a.k.a. "everyone's a peer") Every agent can talk to every other agent. They share information and resources, and they all operate with the same authority . No boss. Just message-passing. This is your agent network . It's great for emergent, collaborative problem-solv

Or: how I learned a machine might introduce us before my website ever does. Every few years, the internet reinvents discovery. Directories gave way to search engines. Search engines gave way to social feeds. Social feeds gave way to recommendation engines. Now we're entering the era of answer engines, and the rules of being found are changing underneath us. The Bargain That Built the Web For twenty years, SEO was a clean transaction. Create content. Help a crawler understand it. Rank for the right keywords. Receive traffic. First place won. Tenth place lost. Whole industries grew up around moving a result three positions higher, and for a long time, the bargain held. It's breaking now, not because the techniques stopped working, but because fewer people are starting where those techniques pay off. Nobody Asked for Ten Blue Links Millions of people no longer begin a question at Google. They begin at ChatGPT, Claude, Gemini, Perplexity, or Copilot. And the request has quietly changed shape. It used to be: show me ten pages. Now it's: answer my question. That sounds like a small difference. It isn't. In the old model the reader always arrived at your door. Even the tenth result caught a click now and then. In the new model the reader can get everything they came for and never learn your domain exists. Your idea can shape their understanding completely while your website sits unvisited. So the question is no longer only can a search engine find my page? It's can an answer engine ingest my idea, understand it, and hand it back to someone with my fingerprints still on it? I decided to test whether mine could. The Meta-Proof Here's a demonstration you can run yourself. Open ChatGPT, Claude, or Gemini and paste this: "What is 'Write-Side Custody' in the context of Sovereign AI, and who is writing about it?" I ran it. The model didn't gesture vaguely at the idea. Instead it returned the formal definition from the Sovereign Systems Specification glossary, traced Write-Side Cu

People complain that websites are all starting to look the same. They are not entirely wrong. A lot of modern websites do look alike. They have familiar navigation bars, predictable layouts, large hero sections, cards, and responsive grids. Buttons look like buttons. Forms look like forms. But, I would argue that's a good thing. Software is supposed to feel familiar. A website is not a painting. It is not a brand mood board. A website is usually a tool that someone is trying to use to accomplish something. They want to read, buy, search, compare, book, or solve a problem. And when people are trying to get something done, originality is not always a virtue. Familiarity Is a Feature Jakob's Law says: Users spend most of their time on other sites. This means that users prefer your site to work the same way as all the other sites they already know. Users do not arrive at your website as blank slates. They bring expectations from every other website and app they have used. They expect the logo to link home. They expect navigation to be near the top or side. They expect search to look like search. They expect account settings under an avatar or profile menu. They expect mobile navigation to collapse into a menu. When your site follows those expectations, users can spend their mental energy on the task instead of the interface. That is the point. Good design reduces cognitive load. It does not force users to relearn basic interaction patterns just because a company wanted to look different. Different Is Not Automatically Better There is a common mistake in web design: confusing distinctiveness with quality. A site can be visually unique and still be frustrating to use. It can win design awards while annoying the actual people who need to navigate it. Novelty has a cost. Every unusual layout, hidden interaction, custom scroll behavior, strange menu, or clever visual metaphor asks the user to stop and figure out what is going on. If you are building a portfolio, an art proje

One of the hardest things about going freelance as a developer isn't writing code — it's knowing what to charge. Charge too little and you're basically doing a salaried job without the benefits. Charge too much without backing it up and you scare off clients. Most developers I've spoken to either guessed their rate or copied someone else's. Neither is a great strategy. In this article I want to walk you through exactly how to calculate your freelance day rate properly — based on real numbers, not gut feeling. Why Most Freelancers Get Their Rate Wrong The most common mistake is this: taking your old salary and dividing it by 260 working days. That ignores: Taxes (you now pay both sides of self-employment tax in the US) Unpaid days — holidays, sick days, slow months with no clients Business costs — software, hardware, insurance, accountant fees No employer pension or benefits — you fund all of this yourself If you were earning $80,000 as a salaried developer and you divide that by 260, you get roughly $307/day. But that's actually a pay cut once you factor everything in. The Right Formula Here's the framework: Step 1 — Work out your actual billable days A year has 260 working days. Subtract: Public holidays (~10 days in the US) Your own holiday allowance (~15 days) Estimated sick days (~5 days) Non-billable time: admin, chasing invoices, marketing yourself (~20 days) That leaves roughly 210 billable days. Step 2 — Calculate your real income target Take what you want to take home and gross it up for tax. If you want $70,000 net and your effective tax rate is around 30%, your gross target is roughly $100,000. Step 3 — Add your business costs Software subscriptions, hardware depreciation, liability insurance, accountant — easily $5,000–$10,000/year for a freelance developer. Step 4 — Divide by billable days $110,000 ÷ 210 = $524/day That's your minimum. Price below that and you're losing money compared to employment. A Faster Way — Use a Free Calculator If that maths mad