The satellite services communicate with each other through my LanguageExt.Process system which is a clustered actor-library, and so as long as the message formats stay the same they can be built and updated separately.
Each solution has a '<project name>.Dependencies' csproj included that contains all of the nu-get dependencies. It builds to ../bin, and then all of the projects in the solution add their dependencies from there. That means it's relatively easy to manage the dependencies for each solution.
There's a manual element of waiting for a project to build [on TeamCity] before updating the references in projects that depend on it, but on the whole it's not been too bad.
