First you have to install the following dependencies:
cssouglifyjsThese dependencies can be installed using npm:
npm install csso uglify-js -g;
The Makefile is located in etc/ and can be easily executed, using the following command. Make sure your run this from the root of Lychee:
make -f etc/Makefile
While developing, you might want to use the uncompressed files. This is possible by editing the index.html. Simply change the linked CSS and JS files. There are already out-commented link-tags for development and production.