Permission Denied

Hi guys! Getting this when trying to install and run ACE. Any ideas?

admin$ sudo npm install -g @daisy/ace
/usr/local/bin/ace -> /usr/local/lib/node_modules/@daisy/ace/bin/ace.js
/usr/local/bin/ace-http -> /usr/local/lib/node_modules/@daisy/ace/bin/ace-http.js

> puppeteer@1.4.0 install /usr/local/lib/node_modules/@daisy/ace/node_modules/puppeteer
> node install.js

ERROR: Failed to download Chromium r555668! Set "PUPPETEER_SKIP_CHROMIUM_DOWNLOAD" env variable to skip download.
{ Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules/@daisy/ace/node_modules/puppeteer/.local-chromium'
errno: -13,
code: 'EACCES',
syscall: 'mkdir',
path: '/usr/local/lib/node_modules/@daisy/ace/node_modules/puppeteer/.local-chromium' }
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! puppeteer@1.4.0 install: `node install.js`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the puppeteer@1.4.0 install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /Users/admin/.npm/_logs/2018-05-23T14_59_01_384Z-debug.log