A year after Bun 1.2 and the runtime explosion, here is the field verdict: who to pick for what, and when hype misleads.
Bun shook the ecosystem. Deno 2 went Node-compatible. Node 24 shipped native TS. Where do we stand?
Default for 80% of projects. Native TS strip, .env, test runner, watch mode.
Faster cold start, package install, tests. Shines in CLI tools and DX.
Node-compatible, TS native, explicit permissions. Shines for isolated scripts and edge.
Node for prod APIs, Bun for CLI and monorepo package manager, Deno/Bun for edge.
Iterator helpers, Promise.try, Set methods, Regex /v flag. ES2025 is the densest update since ES6. Full tour with real use cases.
Three years after the tease, one year after Next.js 15. Production feedback on RSC: what really works and what still breaks.
Concrete tour of TypeScript 5.7 features, with patterns I adopted and those I skipped.
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