Curated development tutorials from top sources. Filter by language.
I maintain HeadlessTracker, an MCP server that reads crypto balances across exchanges and wallets and hands them to an AI host. It touches API keys. S
TypeScript template literal types and recursive conditional types: advanced type patterns Understanding the Core Concepts TypeSc
TL;DR: Vercel's Node File Trace only bundles files reached through node_modules. Cross-tree relative imports inside /api/ are never packaged into sibl
Multi-agent workflows are token-hungry by construction. Everyone says it; almost nobody publishes run-over-run numbers. I did, on my own pipeline, and
The best UI library for Next.js in 2026 depends on your use case. Shadcn/ui is the best overall for design control and DX. MUI is best for large team
Adding a second language to an app sounds like a weekend task. In practice, most developers hit the same wall: the routing changes, the translation fi
Migrating from Next.js Pages Router to App Router is a significant but manageable project. The recommended approach is incremental - both routers can
Adding Shadcn/ui to an existing Next.js template takes about 15 minutes if your template uses Tailwind CSS. The main consideration is CSS variable na
A production-quality sticky sidebar in Next.js needs four things: CSS position sticky for the layout, active link detection with usePathname, a mobil
f you build on Cloudflare Workers today and you need background jobs, you have probably had the following conversation: "We can use Cloudflare Queue
Most TypeScript backends you've written have probably used a DI container. Maybe InversifyJS. Maybe tsyringe. Maybe NestJS under the hood. They're erg
Last Sunday I shared nestjs-docfy, a small library to move Swagger decorators out of NestJS controllers into companion *.controller.docs.ts files. The
Today we are shipping HazelJS 1.0.0 — the first stable release of our AI-native TypeScript framework for Node.js. All 47 @hazeljs/* packages are publi
Coding agents are trained against a snapshot of the world. So when you ask one to wire up an LLM call, it reaches for whatever model string was curren
The Typo That TypeScript Hid From Me I spent a good chunk of time debugging a silent failure in a React Native app. I was integrating the Google Rout
Your trading bot spotted the opportunity: Jupiter shows SOL/USDC at a 0.3% premium, Drift has high funding rates for hedging, and gas is below your th
I built this after the nth time I hand-typed a third-party API response into a Zod schema, squinting at the JSON trying to figure out which fields wer
I've written before about the overall automation pipeline at pikkuna.fi — the high-level flow from Stripe webhook to customer confirmation in under 2
Introduction TypeScript, a superset of JavaScript, introduces a robust type system that enhances code quality and developer productivity. L