This is the home of The Cog Book, the definitive reference for the Cog chat platform, by Operable.
The book is written in reStructuredText and built using Sphinx.
The build toolchain is contained in the operable/cog-book-toolchain:sphinx Docker image. If you have Docker installed, you can build the book by running make cog-book. You can browse the newly built docs by opening build/cog-book/html/index.html in a browser.