turborepo

Optimizing monorepo builds involves coordinating tasks and caching across apps and packages using per-package turbo.json configurations. This enables parallel execution, accurate cache invalidation through dependsOn, outputs, and inputs, and selective builds using --affected and --filter patterns.

Monorepo task caching requires explicit hash inputs including outputs, environment variables, and inputs defined per-package. This ensures deterministic caching, so unchanged packages skip rebuilds during pipeline execution.

Selective builds in a CI pipeline use --affected and --filter patterns to execute tasks only for changed packages. This requires defined task graphs and per-package configurations to accurately identify and build affected dependencies.

Yes, per-package turbo.json configurations are required to orchestrate tasks in a multi-package repo. You must define task graphs, dependencies, and explicit hash inputs to ensure deterministic caching and correct parallel execution.

The best way to coordinate cross-package builds is using centralized task orchestration with defined task graphs. This approach manages dependencies across apps and libraries, applying parallel execution and accurate cache invalidation to accelerate pipelines.

Monorepo caching requires explicit hash inputs including environment variables to ensure deterministic results. When environment variables are not declared in per-package configurations, the cache cannot accurately detect changes, leading to stale or incorrect build outputs.