fancy-rollup

fancy-rollup is a multi-process wrapper for Rollup that runs multiple Rollup builds concurrently across CPU cores to speed up bundling. Version 0.5.5 (latest stable) targets Node >=8 and is published on npm. It reads an array of Rollup configurations from rollup.config.js and spawns separate Node processes for each build, providing several reporter styles (interactive, list, silent, etc.) for progress visualization. Unlike Rollup's sequential multi-bundle support, fancy-rollup parallelizes builds out of the box with options for concurrency limits and target selection. The package is in early development (minor version 0.x), with API support still planned. It has no runtime peer dependencies but relies on a compatible rollup installation.