Bun v1.0.0 --production flag and optionalDependencies pruning

Reducing Deployment Footprint for Low-Traffic Workloads

Bun v1.0.0 introduces the --production flag for bun install to optimize deployment footprints by excluding devDependencies. This is particularly useful for reducing disk I/O and startup latency in containerized or serverless environments where hosting costs are tied to resource usage.

Dependency Management Constraints

While the --production flag handles the removal of development dependencies, the current behavior regarding other dependency types is less restrictive. Specifically, optionalDependencies are installed by default, and peerDependencies are not automatically pruned during the production install process.

For workloads requiring the absolute minimum node_modules size to lower operational costs, it is unclear how to programmatically exclude optional dependencies without manually editing the package.json or employing external pruning scripts.

• Does Bun provide a configuration setting to skip optionalDependencies when using the --production flag?
• Is there a documented method to prune peerDependencies that are not required by the production runtime?