Run commands concurrently. Like `npm run watch-js & npm run watch-less` but better.
Concurrently is a command-line tool for running multiple commands in parallel, built in Node.js and distributed via npm. It solves the problem of managing concurrent processes better than shell operators like `&`, offering cross-platform support, prefixed output for easy tracking, and the ability to kill all processes if one fails. The project is maintained by the open-cli-tools organization and can be used both as a CLI tool and as a Node.js API, supporting features like process restart, input handling, output control, and IPC messaging.