Trevor I. Lasn, Building 0xinsider

Join the 0xInsider.com Discord community — talk markets, odds, and predictions with fellow prediction market traders in real time.

Every time I bet on myself instead of taking a paycheck, and what each one taught me.

What Answer Engine Optimization and Generative Engine Optimization mean, and how to get your site cited by AI Overviews, ChatGPT, Claude, Perplexity, and Gemini.

No QA team.

A year of watching people bet real money on outcomes changed how I think about everything.

BotID verifies browser challenges before proxying to the backend.

Pull GSC data into Claude Code to find CTR problems, indexing bugs, and keyword gaps — then fix them in the same conversation.

Polymarket analytics for sports and esports in real-time.

What AI agents are, how the agent loop works, and why they're different from chatbots.

Buy YES and NO for less than a dollar.

How to build a MCP server that works with Claude Code, Gemini CLI, Cursor, and more.

Style connected UI elements with CSS pseudo-classes that respond to user interest.

Create animated transitions between different states of your app without complex animation libraries.

The ::details-content pseudo-element lets you style the expandable content of details elements separately from the summary, no divs needed.

Give your AI agent access to your running application.

Superpowers is an MCP plugin for Claude Code that enforces planning, TDD, and debugging workflows.

Lighthouse CI fails your builds when performance drops.

The Next.js DevTools MCP connects Claude and Cursor to your running dev server.

Context7 MCP server pulls version-specific library docs into Claude Code, Cursor, and other AI editors.

Set up IndexNow to notify Bing, DuckDuckGo, ChatGPT, and Perplexity the moment you publish.

Complete guide to Next.js 16 — async params, Turbopack default, stable caching APIs, and how to upgrade.

When everything looks the same, being different becomes valuable again

With AI tooling, a developer with 1 year of experience can match the output of someone with 10 years.

With AI tools like Claude Code, Cursor, GitHub Copilot, OpenAI Codex, and Lovable, is learning to code still valuable?

Ever wished your AI agent would slow down and think things through?

A CLI tool that checks packages for security issues and social engineering attacks before they hit your project

While everyone debates models and features, Google owns the distribution channels that make AI stick

Have you ever been curious how JavaScript was written back in the day?

V8's compile hints let you control which JavaScript gets compiled immediately during page load

Why the new Error.isError() method solves important cross-realm issues and provides more reliable error identification than instanceof

How I use the 'Three Layers of Data' architecture pattern for React and Next.js apps to avoid common pitfalls, tech debt, and improve performance

Understanding the new 16-bit floating point array in JavaScript

An exploration of Google's new open protocol that enables different AI systems to exchange information and collaborate

How scheduled developer freedom weeks can revolutionize your codebase and team morale

The vulnerability skips Next.js middleware security checks by adding a single HTTP header

Research reveals the ideal ratio of positive to negative feedback within high performing teams

Stop writing manual duration formatting code.

Work for free and in return watch your passion get crushed by entitled users who are never satisfied

Be the authentic voice in a world of manufactured personas

This package compares your Node.js version against the Node.js Security Database, providing immediate feedback about potential security risks.

Create overlays and dropdowns easily with the native HTML popover API

Understanding how WeakRef helps manage memory in JavaScript

Honey's controversial affiliate link practices and what it teaches us about Silicon Valley's ethics

Use AsyncLocalStorage to carry request IDs, user context, and tracing data through async calls without passing them as arguments.

Use scrollbar-width to thin or hide scrollbars and scrollbar-gutter to prevent layout shift.

The simplest setup for adding Clerk authentication to your Astro project, with minimal code

A look at how browsers can highlight text fragments using CSS ::target-text, making text sharing and navigation more user-friendly

Finally, we can center things in block layouts without flexbox gymnastics

The new pseudo-classes :user-valid and :user-invalid give us a smarter way to style form validation states based on user interaction

Building a tech career with a sword tattooed on my neck