Build scripts and source files are in the sources directory.
To build new fonts, open a Unix-like terminal (Linux, MacOS, WSL) in the root directory of this project, and run the build script. If you have Python3 installed, this script should set up a temporary virtual environment and install all needed dependencies automatically.
sh build.sh
If you are making a pull request to Google Fonts, add the -gf flag and files will be moved to ~/Google/fonts/ofl/.. after building.
sh build.sh -gf