The code is in source code repository.
The version control system used is fossil scm. It is similar to git, but much better for small projects.
So, at the very beginning you should use this workflow and when you are more familiar with fossil I will give you commit permissions to work directly on the central repository.
P.S. BTW, fossil scm is written by the author of SQLite D.Richard Hipp. He is brilliant programmer and particularly fossil is really a masterpiece software.
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