It appears that the repository has undergone several changes and renamings:

backend/node_modules/mini-svg-data-uri/cli.js

@@ -1,41 +0,0 @@
-#!/usr/bin/env node
-
-let help = `
-Usage: mini-svg-data-uri <source> [dest]
-
-Options:
--v, --version  Output the version number
--h, --help     Display help for command
-
-Examples:
-  mini-svg-data-uri file.svg           Write to stdout
-  mini-svg-data-uri icon.svg icon.uri  Write to file
-`;
-
-let [source, dest] = process.argv.slice(2);
-
-switch (source) {
-  case '-h':
-  case '--help':
-  case undefined:
-    console.log(help);
-    process.exit();
-
-  case '-v':
-  case '--version':
-    console.log(require('./package').version);
-    process.exit();
-}
-
-const fs = require('fs');
-const svgToMiniDataURI = require('.');
-
-fs.readFile(source, 'utf8', (err, data) => {
-  if (err) {
-    console.error(err.message);
-    console.log(help);
-    process.exit(1);
-  }
-  const out = svgToMiniDataURI(data);
-  dest ? fs.writeFileSync(dest, out) : console.log(out);
-});