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Support for SQL Server Database Tools projects
SSDT projects can reference DacPac files, which are similar in concept to assemblies. There is a perceived need for NuGet packages that can install DacPacs into SSDT projects, so that common database code can be shared, e.g. throughout an organisation.
SSDT is a core part of VS 2012, so it is likely that more people will be using these project types as time goes on.