namely:

npm add -D js_storage

npm ERR! code E404

npm ERR! 404 Not Found - GET https://registry.npmjs.org/js_storage - Not found

npm ERR! 404

npm ERR! 404 'js_storage@latest' is not in the npm registry.

vs

npm add -D js-storage

> esbuild@0.3.9 postinstall /home/tellmejeff/git/snowpack/node_modules/esbuild

> node install.js

+ esbuild-linux-64@0.3.9

added 1 package in 0.208s