JL Kruger
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Homepage (site/index.html): integration-v14 promoted, Writings section integrated with 33 pieces clustered by type (stories/essays/miscellany), Writings welcome lightbox, content frame at 98% opacity. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
64 lines
1.3 KiB
Markdown
64 lines
1.3 KiB
Markdown
---
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title: Use Single Dependency Versions Across Monorepo
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impact: MEDIUM
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impactDescription: avoids duplicate bundles, version conflicts
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tags: monorepo, dependencies, installation
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---
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## Use Single Dependency Versions Across Monorepo
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Use a single version of each dependency across all packages in your monorepo.
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Prefer exact versions over ranges. Multiple versions cause duplicate code in
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bundles, runtime conflicts, and inconsistent behavior across packages.
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Use a tool like syncpack to enforce this. As a last resort, use yarn resolutions
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or npm overrides.
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**Incorrect (version ranges, multiple versions):**
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```json
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// packages/app/package.json
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{
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"dependencies": {
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"react-native-reanimated": "^3.0.0"
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}
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}
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// packages/ui/package.json
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{
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"dependencies": {
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"react-native-reanimated": "^3.5.0"
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}
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}
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```
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**Correct (exact versions, single source of truth):**
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```json
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// package.json (root)
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{
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"pnpm": {
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"overrides": {
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"react-native-reanimated": "3.16.1"
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}
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}
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}
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// packages/app/package.json
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{
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"dependencies": {
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"react-native-reanimated": "3.16.1"
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}
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}
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// packages/ui/package.json
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{
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"dependencies": {
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"react-native-reanimated": "3.16.1"
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}
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}
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```
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Use your package manager's override/resolution feature to enforce versions at
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the root. When adding dependencies, specify exact versions without `^` or `~`.
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