You’re a little company, now act like one - You’re afraid that looking like being a small company means you’ll lose sales. It’s actually the opposite – you’re alienating your best customers. startups, business
Root for Your Friends - The concept of this post might seem trivial, but it can improve your career, happiness, and the people you care about. social
Stuff I learned at Carta. - Today’s my last day at Carta, where I got the chance to serve as their CTO for the past two years. I’ve learned so much working there, and I wanted to end my chapter there by collecting my thoughts on what I learned. carta, cto, engineering
On File Formats - I've been meaning to write something about file format design for a while, and might as well do a blog post. This is pretty unorganized, in a moment thing, so take it as it is. files
AI Makes Bad Managers - It’s performance-review season and I’m watching managers kneecap their careers. Gleefully they share the best prompts to have ChatGPT write their performance assessments - exactly the sort of shortcut that guarantees they’ll never get better at the job. leadership, ai
Teachable Machine - Train a computer to recognize your own images, sounds, & poses. ml
reverse-linear-sync-engine - A reverse engineering of Linear's sync engine for learning purposes. Endorsed by Linear's CTO. sync, linear
Read it! Read it! Read it!
Announcing Rolldown-Vite - Try out the Rolldown-powered Vite today by using the rolldown-vite package instead of the default vite package. It is a drop-in replacement, as Rolldown will become the default bundler for Vite in the future. Switching should reduce your build time, especially for larger projects. vite, rust, rolldown 🔥
Code and Tools
F2 - F2 is a cross-platform command-line tool for batch renaming files and directories quickly and safely. Written in Go! cli, tools
SuperUtilsPlus - A superior alternative to Lodash with improved performance, TypeScript support, and developer experience. typescript, tools 🔥
lnk - Git-native dotfiles management that doesn't suck. dotfiles
React Photo Studio - React Photo Studio is a free online photo editor for photography and design images, photoshop 🔥
trailbase - A blazingly fast, open-source application server with type-safe APIs, built-in JS/ES6/TS runtime, realtime, auth, and admin UI built on Rust, SQLite & V8. server
Stalwart - All-in-one Mail & Collaboration server. Secure, scalable and fluent in every protocol (IMAP, JMAP, SMTP, CalDAV, CardDAV, WebDAV). email, collaboration
PgDog - PgDog is a transaction pooler and logical replication manager that can shard PostgreSQL. Written in Rust, PgDog is fast, secure and can manage hundreds of databases and hundreds of thousands of connections. postgres
FlowGram.AI - FlowGram is a node-based flow building engine that helps developers quickly create workflows in either fixed layout or free connection layout modes graphs, flow
ForesightJS - ForesightJS is a JavaScript library that predicts user intent by tracking the mouse. Great for prefetching without wasting resources. predictions
Tesseral - Open source auth infrastructure for B2B SaaS auth
RockPack - Rockpack is a lightweight, zero-configuration solution for quickly setting up a React application with full support for Server-Side Rendering (SSR), bundling, linting, and testing. react, ssr
everywhere.tools - Collection of open-source tools for designers & creatives tools 🔥
Donut Browser - A powerful browser orchestrator that puts you in control of your browsing experience. browsers
Polar - Payment infrastructure for the 21st century payments
LiveStore - LiveStore is a next-generation state management framework based on reactive SQLite and built-in sync engine. state-management
Sequor - Sequor is a SQL-centric platform for building API integrations without lock-in and black boxes. Fuses API execution with SQL logic to provide an open, flexible platform for all your data and app integrations. apis, sql
The Book of Secret Knowledge - A collection of inspiring lists, manuals, cheatsheets, blogs, hacks, one-liners, cli/web tools and more. knowledge, gallery
Claude Squad - Manage multiple AI agents like Claude Code, Aider, Codex, and Amp. 10x your productivity ai, claude, cli
Figma’s new grid — you must understand CSS Grid as a designer - At Config 2025, Figma rolled out many exciting updates, including a brand-new layout grid. At first glance, it might seem like just another way to organise your designs, but there’s more to it. figma, grid
Lazy Tetris - No time pressure, just solving the puzzle tetris
CSS Minecraft - There is no JavaScript on this page. All the logic is made 100% with pure HTML & CSS. html, css 🔥
Tutorials
Mastering Focus Management in React with flushSync - Focus management is one of those things you don't think about until it's broken. But when it is, it can make your app feel clunky, inaccessible, or just plain wrong. react
SVG Favicons in Action - Ever heard of favicons made with SVG? If you are a regular reader of CSS-Tricks, you probably have. But does your website actually use one? svgs 🔥
Web animations today and tomorrow - Join us to explore the latest advancements in web animation to help developers create richer, more dynamic, and performant web experiences. We'll cover new and upcoming features, including @starting-style, enhancements to View Transitions, the ability to animate the details element, and improved DevTools support. css, animations
Published on 2025-06-02, last updated on 2025-09-14 by Adam
Comments or questions? Open a new discussion on
github.
Adam Urban is fullstack engineer, loves serverless and generative art,
and is building side projects like
weeklyfoo.com,
flethy.com and
diypunks.xyz in his free time.