node-source-map 0.5.7+dfsg-1 (ppc64el binary) in ubuntu bionic

 Mozilla implementation of source map generator and consumer, for source
 maps written in the Asynchronous Module Definition format.
 .
 Source maps provide a language-agnostic way to compile back production
 code to the original source code.
 .
 Node.js is an event-based server-side JavaScript engine.