Upgrade Node

wget -qO- https://deb.nodesource.com/setup_8.x | sudo bash -
sudo apt-get install --yes nodejs

You can then install the latest npm, polymer-cli, and bower:

sudo npm install --global npm@latest
sudo npm install --global polymer-cli
sudo npm install --global bower

Install BLAS to improve performance, and dev tools so

face-recognition can build.

sudo apt install -y libopenblas-dev cmake

NEF processing uses ufraw-batch

sudo apt install -y ufraw-batch

Create photos user for DB

Photos is currently using sqlite, which means you don't need to do anything fancy beyond having run 'npm install' to get sequelize and sqlite3 installed.