sudo npm install -g elm-github-install

npm WARN deprecated node-uuid@1.4.8: Use uuid module instead
/usr/local/bin/elm-github-install -> /usr/local/lib/node_modules/elm-github-install/scripts/run.js
/usr/local/bin/elm-install -> /usr/local/lib/node_modules/elm-github-install/scripts/run.js

> elm-github-install@0.3.1 install /usr/local/lib/node_modules/elm-github-install
> node scripts/install.js

Downloading and extracting the binary from: https://github.com/gdotdesign/elm-github-install/releases/download/v0.3.1/elm-install-0.3.1-osx.tar.gz
events.js:160
      throw er; // Unhandled 'error' event
      ^

Error: EACCES: permission denied, mkdir '/Users/alexandre/.elm-install'
    at Error (native)
npm ERR! Darwin 16.4.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "install" "-g" "elm-github-install"
npm ERR! node v6.10.2
npm ERR! npm  v3.10.10
npm ERR! code ELIFECYCLE

npm ERR! elm-github-install@0.3.1 install: `node scripts/install.js`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the elm-github-install@0.3.1 install script 'node scripts/install.js'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the elm-github-install package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR!     node scripts/install.js
npm ERR! You can get information on how to open an issue for this project with:
npm ERR!     npm bugs elm-github-install
npm ERR! Or if that isn't available, you can get their info via:
npm ERR!     npm owner ls elm-github-install
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR!     /Users/alexandre/Projects/elm-node/test/npm-debug.log