使用NuGet从文件夹打包所有竞争对手

We would like to use Octopus Deploy for our Deployments. I am trying to package our assemblies using Nuget for the same. We maintain lots of solutions (contains lots of independent projects) and We have our custom windows host which doesn't have any direct reference to the application assemblies. Currently We Zip all the files and extract them to install the windows services. I am exploring a way to package all the content in zip file to NuGet Package. is that possible. What is the best and easiest way to package considering our current implementation. I tried creating .NuSpec file and NuPkg manually using package explorer. But it's not visible and only visible in package explorer. Can anyone help me on this?We would like to use Octopus Deploy for our Dep