The 2026 testing stack: Vitest for units, Playwright for everything else
Jest is dead for new projects. Vitest took the unit test layer. Playwright's component testing is now stable. Here's the setup, the…
Appesto
Tag: dx
Turborepo monorepo in practice: structure, caching, and the mistakes to skip
Remote caching is free on Vercel. pnpm workspaces + Turborepo is the settled stack. Here's the folder structure, turbo.json, and the three…
Vibe coding vs. agentic engineering: the distinction that matters in 2026
Vibe coding shipped MVPs. Agentic engineering is shipping production systems. Here's the workflow, the tooling stack, and exactly where each approach breaks…
TypeScript 5.8: the three changes that actually matter
Granular conditional return checking, the --erasableSyntaxOnly flag for native TS execution, and require() of ESM modules. What landed, what it means, and…
Type-safe API clients with Zod and fetch – without the codegen
Schema validation at the boundary, not just the form. How we replaced generated API clients with a thin Zod-typed fetch wrapper that's…
Vite 7: what changed and what it means for your dev loop
Rolldown replaces Rollup under the hood, ESM-first becomes the default, and the plugin API gets a cleaner shape. Here's what actually changes…
Turning on every strict TypeScript flag – was it worth it?
noUncheckedIndexedAccess, exactOptionalPropertyTypes, and friends. The bugs we caught, the noise we tolerated, and what we'd do again.