JS is the most used language for web development both client and server side. It's easy to find fullstack repos with only JS code and a bunch of shell scripts t

JS is the most used language for web development both client and server side. It's easy to find fullstack repos with only JS code and a bunch of shell scripts to launch the tooling like webpack bundler and cypress e2e tester. By wrapping the tooling also in JS it's possible to take advantage of shared configuration written in JS and write reusable functions to share across scripts. Currently I have all my tooling scripts in bash (not yet in JS) and it's becoming hard to manage. Sharing functions and constant values across folders in shell bash script is very cumbersome.