A project I'm working on needs 3 things to happen before dev/build:

Hash legal content (license, terms) to detect changes.

Split a huge GeoJSON file into per-region chunks.

Generate static SEO landing pages from a metadata JSON. npm's pre- scripts hook into dev and build automatically. But chaining 3+ steps gets messy fast. ## What I tried first

json { "scripts": { "predev": "node scripts/hash.js && node scripts/split.js && node scripts/gen.js", "prebuild": "node scripts/hash.js && node scripts/split.js && node scripts/gen.js", "dev": "vite", "build": "vite build" } } Works. Two problems:

Duplication: predev and prebuild are identical. Add a 4th step and you change two places. Hard to debug: if step 2 fails, the error reaches you but the chain stops without context.…