opkg update
opkg install nodejs npm
I like to store my global node modules in my root directory, so as to not take up too much room in the root file system, this along with my instructions above for setting up SDCARD for /root gives me plenty of extra space.
mkdir -p /root/node/bin
npm config set prefix /root/node
Add the node bin to your .profile, either edit it or echo to it.
echo "export PATH=~/node/bin:\$PATH" >> ~/.profile
source ~/.profile
Test it out.
npm install -g lorem-ipsum
lorem-ipsum
# should output some lorem ipsum text
npm remove -g lorem-ipsum