nodejs-backend

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Scope

Server-side Node.js: the shape of a service that survives production. The general layer — lifecycle, validation, errors, logging, configuration, injection, streams, the event loop — is in ## Core rules and applies whatever the framework is. Framework-specific mechanics live in one branch reference per framework, selected from package.json (rule 1).

Written against Node.js 24 LTS, Fastify 5, NestJS 12 and Hono 4. Rules that need a newer runtime carry a version floor inline.

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