Getting started with the core projects
There are many benefits of using .NET Core and ASP.NET Core over the old full versions of the frameworks. The main enhancements are the open source development and cross platform support, but there are also significant performance improvements. Open development is important and the source code is not only available, the development work happens in the open on GitHub. The community is encouraged to make contributions and these may be merged in upstream if they pass a code review; the flow isn't just one way. This has led to increased performance and additional platform support coming from outside of Microsoft. If you find a bug in a framework, you can now fix it rather than work around the problem and hope for a patch.
The multiple projects that make up the frameworks are split across two organizations on GitHub. One of the driving principles has been to split the frameworks up into modules, so you can just take what you need rather than the whole monolithic...