It's just a command and controll server. It's awfull. Don't use it.
On windows there will probably be a project file created for visual studio
cmake --build build
Or if you are crosscompiling then:
cmake --build build -DCMAKE_TOOLCHAIN_FILE=../crosscompile.cmake
And then on linux:
cd build
make -j
go build -o teamserver ./cmd/main.go