Start here: https://www.rosettacommons.org/docs/latest/getting_started/Getting-Started
Rosetta/main (the repository you are looking at) contains the Rosetta source code, database, unit tests and integration tests. The source code is located in source/src can be compiled with SCons using the following commands:
$ cd Rosetta/main/source
$ ./scons.py -j<NumOfJobs> mode=[debug/release] [bin]In our current development workflow, all work should be done in branches. Do not fork this repository. Read our workflow documentation to learn how to work with the Rosetta repositories.
We avoid forking, using a branching-only method, to ensure that all the Rosetta code stays accessible. We would lose access to unmerged forked branches as developers leave the community. It also ensures we have a single backup of all pushed branches in the event that GitHub were to disappear.
All changes to master must go through Pull Requests (PR), also described in our workflow documentation. Those PRs also get reviewed by the community before merge, here are tips on structuring your code for easy review.